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{{short description|Analysis of social structures using network and graph theory}}
A '''social network''' is a social structure made of nodes which are generally individuals or organizations. It indicates the ways in which they are connected through various social familiarities ranging from casual acquaintance to close familial bonds. The term was first coined in 1954 by ] (in: ''Class and Committees in a Norwegian Island Parish'', "Human Relations"). The maximum size of social networks tends to be around 150 people and the average size around 124 (Hill and Dunbar, 2002).
{{about|the theoretical concept|quantitative application to social media|social media analytics|social networking sites|social networking service|other uses|Social network (disambiguation)}}
{{Use mdy dates|date=October 2023}}
{{Sociology}}{{Network science}}] displaying friendship ties among a set of ] users.]]
'''Social network analysis''' ('''SNA''') is the process of investigating social structures through the use of ] and ].<ref>{{cite journal |last1=Otte |first1=Evelien |last2=Rousseau |first2=Ronald |title=Social network analysis: a powerful strategy, also for the information sciences |journal=Journal of Information Science |date=December 2002 |volume=28 |issue=6 |pages=441–453 |doi=10.1177/016555150202800601 |s2cid=17454166 }}</ref> It characterizes networked structures in terms of ''nodes'' (individual actors, people, or things within the network) and the ''ties'', ''edges'', or ''links'' (relationships or interactions) that connect them. Examples of ]s commonly visualized through social network analysis include ],<ref>{{cite journal |last1=Grandjean |first1=Martin |title=A social network analysis of Twitter: Mapping the digital humanities community |journal=Cogent Arts & Humanities |date=31 December 2016 |volume=3 |issue=1 |doi=10.1080/23311983.2016.1171458 |s2cid=114999767 |doi-access=free }}</ref><ref name="Hagen L 2018 523–541">{{cite journal |last1=Hagen |first1=Loni |last2=Keller |first2=Thomas |last3=Neely |first3=Stephen |last4=DePaula |first4=Nic |last5=Robert-Cooperman |first5=Claudia |title=Crisis Communications in the Age of Social Media: A Network Analysis of Zika-Related Tweets |journal=Social Science Computer Review |date=October 2018 |volume=36 |issue=5 |pages=523–541 |doi=10.1177/0894439317721985 |oclc=7323548177 |s2cid=67362137 }}</ref> ] proliferation,<ref>{{Cite arXiv|last1=Nasrinpour|first1=Hamid Reza|last2=Friesen|first2=Marcia R.|last3=McLeod|first3=Robert D.|date=2016-11-22|title=An Agent-Based Model of Message Propagation in the Facebook Electronic Social Network|eprint=1611.07454|class=cs.SI}}</ref> information circulation,<ref>{{cite journal|last=Grandjean|first=Martin|title=The Paris/Geneva Divide. A Network Analysis of the Archives of the International Committee on Intellectual Cooperation of the League of Nations|language=en|journal=Culture as Soft Power: Bridging Cultural Relations, Intellectual Cooperation, and Cultural Diplomacy|date=2022|pages=65–98|doi=10.1515/9783110744552-004|url=https://shs.hal.science/halshs-03760539/file/Grandjean_2022_TheParisGenevaDivide.pdf}}</ref> ], business networks, knowledge networks,<ref name=Brennecke2017>{{cite journal |last1=Brennecke |first1=Julia |last2=Rank |first2=Olaf |title=The firm's knowledge network and the transfer of advice among corporate inventors—A multilevel network study |journal=Research Policy |date=May 2017 |volume=46 |issue=4 |pages=768–783 |doi=10.1016/j.respol.2017.02.002 }}</ref><ref name=Harris2009>{{cite journal |last1=Harris |first1=Jenine K. |last2=Luke |first2=Douglas A. |last3=Zuckerman |first3=Rachael B. |last4=Shelton |first4=Sarah C. |title=Forty Years of Secondhand Smoke Research |journal=American Journal of Preventive Medicine |date=June 2009 |volume=36 |issue=6 |pages=538–548 |doi=10.1016/j.amepre.2009.01.039 |pmid=19372026 |oclc=6980180781 }}</ref> difficult working relationships,<ref name=Brennecke2019/> ]s, ], ], and ].<ref>{{cite book|author=Pinheiro, Carlos A.R.|title=Social Network Analysis in Telecommunications|publisher=John Wiley & Sons|year=2011|isbn=978-1-118-01094-5|page=4|url=https://books.google.com/books?id=jP8zfL6yNGkC&pg=PA4}}</ref><ref>{{cite book|author=D'Andrea, Alessia|chapter=An Overview of Methods for Virtual Social Network Analysis|editor1=Abraham, Ajith|title=Computational Social Network Analysis: Trends, Tools and Research Advances|publisher=Springer|year=2009|isbn=978-1-84882-228-3|page=8|chapter-url=https://books.google.com/books?id=-S1KiURSfRAC&pg=PA8|display-authors=etal}}</ref> These networks are often visualized through '']s'' in which nodes are represented as points and ties are represented as lines. These visualizations provide a means of qualitatively assessing networks by varying the visual representation of their nodes and edges to reflect attributes of interest.<ref>{{Cite journal|last=Grunspan|first=Daniel|date=January 23, 2014|title=Understanding Classrooms through Social Network Analysis: A Primer for Social Network Analysis in Education Research|journal=CBE: Life Sciences Education|volume=13|issue=2|pages=167–178|doi=10.1187/cbe.13-08-0162|pmid=26086650|pmc=4041496}}</ref>


Social network analysis has emerged as a key technique in modern ]. It has also gained significant popularity in the following: ], ],<ref>{{cite journal |last1=Tringali |first1=Angela |last2=Sherer |first2=David L. |last3=Cosgrove |first3=Jillian |last4=Bowman |first4=Reed |title=Life history stage explains behavior in a social network before and during the early breeding season in a cooperatively breeding bird |journal=PeerJ |date=10 February 2020 |volume=8 |pages=e8302 |doi=10.7717/peerj.8302 |pmid=32095315 |pmc=7020825 |doi-access=free }}</ref> ], ],<ref name="Hagen L 2018 523–541"/><ref name=":1">{{Cite book|title=Social network differences of chronotypes identified from mobile phone data|date=2018 |oclc=1062367169}}{{page needed|date=November 2021}}</ref> ], ], ], ], ],<ref name=Brennecke2017/><ref name=Brennecke2019/> ],<ref name=Gao2023>{{cite journal |last1=Gao |first1=Min |last2=Li |first2=Zheng |last3=Li |first3=Ruichen |last4=Cui |first4=Chenhao |last5=Chen |first5=Xinyuan |last6=Ye |first6=Bodian |last7=Li |first7=Yupeng |last8=Gu |first8=Weiwei |last9=Gong |first9=Qingyuan |last10=Wang |first10=Xin |last11=Chen |first11=Yang |url=https://www.cell.com/patterns/pdf/S2666-3899(23)00218-0.pdf |title=EasyGraph: A multifunctional, cross-platform, and effective library for interdisciplinary network analysis |journal=Patterns |date=October 2023 |volume=4 |issue=10 |pages=100839|doi=10.1016/j.patter.2023.100839 |pmid=37876903|pmc=10591136 }}</ref> ],<ref>{{cite journal |last1=Kim |first1=Rakhyun E |title=Is Global Governance Fragmented, Polycentric, or Complex? The State of the Art of the Network Approach |journal=International Studies Review |date=26 November 2020 |volume=22 |issue=4 |pages=903–931 |doi=10.1093/isr/viz052 |doi-access=free }}</ref> public health,<ref name=Harris2007>{{cite journal |last1=Harris |first1=Jenine K. |last2=Clements |first2=Bruce |title=Using Social Network Analysis to Understand Missouri's System of Public Health Emergency Planners |journal=Public Health Reports |date=July 2007 |volume=122 |issue=4 |pages=488–498 |doi=10.1177/003335490712200410 |pmid=17639652 |pmc=1888499 |oclc=8062393936 }}</ref><ref name=Harris2009/> ], ], ], and ],<ref name=Ghanbarnejad>{{Cite book|title=Dynamics On and Of Complex Networks III Machine Learning and Statistical Physics Approaches|last1=Ghanbarnejad|first1=Fakhteh|last2=Saha Roy|first2=Rishiraj|last3=Karimi|first3=Fariba|last4=Delvenne|first4=Jean-Charles|last5=Mitra|first5=Bivas|date=2019|publisher=Springer International Publishing : Imprint: Springer|isbn=9783030146832|location=Cham |oclc=1115074203}}{{page needed|date=November 2021}}</ref> education and distance education research,<ref>{{Cite journal |last1=Bozkurt |first1=Aras |last2=Akgun-Ozbek |first2=Ela |last3=Yilmazel |first3=Sibel |last4=Erdogdu |first4=Erdem |last5=Ucar |first5=Hasan |last6=Guler |first6=Emel |last7=Sezgin |first7=Sezan |last8=Karadeniz |first8=Abdulkadir |last9=Sen-Ersoy |first9=Nazife |last10=Goksel-Canbek |first10=Nil |last11=Dincer |first11=Gokhan Deniz |last12=Ari |first12=Suleyman |last13=Aydin |first13=Cengiz Hakan |date=2015-01-20 |title=Trends in distance education research: A content analysis of journals 2009–2013 |url=https://www.irrodl.org/index.php/irrodl/article/view/1953 |journal=The International Review of Research in Open and Distributed Learning |language=en |volume=16 |issue=1 |doi=10.19173/irrodl.v16i1.1953 |issn=1492-3831 |doi-access=free }}</ref> and is now commonly available as a consumer tool (see the ]).<ref>{{cite web|url=https://www.bbc.co.uk/news/technology-19699776|title=Facebook friends mapped by Wolfram Alpha app|work=BBC News|date=September 24, 2012|access-date=July 25, 2016}}</ref><ref>{{cite web|url=https://techcrunch.com/2012/08/30/wolfram-alpha-launches-personal-analytics-reports-for-facebook/|title=Wolfram Alpha Launches Personal Analytics Reports For Facebook|work=Tech Crunch|date= August 30, 2012|author=Frederic Lardinois|access-date=July 25, 2016}}</ref><ref>{{cite journal|author1=Ivaldi M.|author2=Ferreri L.|author3=Daolio F.|author4=Giacobini M.|author5=Tomassini M.|author6=Rainoldi A.|title=We-Sport: from academy spin-off to data-base for complex network analysis; an innovative approach to a new technology|journal=J Sports Med Phys Fitness |volume=51|issue=suppl. 1 to issue 3|hdl=2318/90491|quote=The social network analysis was used to analyze properties of the network We-Sport.com allowing a deep interpretation and analysis of the level of aggregation phenomena in the specific context of sport and physical exercise.}}</ref>
'''Social network analysis''' (also sometimes called ''network theory'') has emerged as a key technique in modern ], ], ] and ], as well as a popular topic of speculation and study. Research in a number of academic fields have demonstrated that social networks operate on many levels, from families up to the level of nations, and play a critical role in determining the way problems are solved, organizations are run, and the degree to which individuals succeed in achieving their goals.


==History==
Social networking also refers to a category of Internet applications to help connect friends, business partners, or other individuals together using a variety of tools. These applications, known as ]s are becoming increasingly popular.
Social network analysis has its theoretical roots in the work of early sociologists such as ] and ], who wrote about the importance of studying patterns of relationships that connect social actors. Social scientists have used the concept of "]" since early in the 20th century to connote complex sets of relationships between members of social systems at all scales, from interpersonal to international.<ref name="Freeman"/>


In the 1930s ] and ] introduced basic analytical methods.<ref name="Freeman">{{cite book |last1=Freeman |first1=Linton C |title=The development of social network analysis: a study in the sociology of science |date=2004 |publisher=Empirical Press; BookSurge |isbn=978-1-59457-714-7 |oclc=429594334 }}{{page needed|date=November 2021}}</ref> In 1954, ] started using the term systematically to denote patterns of ties, encompassing concepts traditionally used by the public and those used by social scientists: bounded ] (e.g., tribes, families) and social ] (e.g., gender, ethnicity).
==Introduction to social networks==
]
Social network theory views social relationships in terms of ''nodes'' and ''ties''. Nodes are the individual actors within the networks, and ties are the relationships between the actors. There can be many kinds of ties between the nodes. In its most simple form, a social network is a map of all of the relevant ties between the nodes being studied. The network can also be used to determine the ] of individual actors. These concepts are often displayed in a social network diagram, where nodes are the points and ties are the lines.


Starting in the 1970s, scholars such as ], ], ], ], ], ], ], ], and ] expanded the use of systematic social network analysis.<ref name="development"/>
The shape of the social network helps determine a network's usefulness to its individuals. Smaller, tighter networks can be less useful to their members than networks with lots of loose connections (]s) to individuals outside the main network. More "open" networks, with many weak ties and social connections, are more likely to introduce new ideas and opportunities to their members than closed networks with many redundant ties. In other words, a group of friends who only do things with each other already share the same knowledge and opportunities. A group of individuals with connections to other social worlds is likely to have access to a wider range of information. It is better for individual success to have connections to a variety of networks rather than many connections within a single network. Similarly, individuals can exercise influence or act as brokers within their social networks by bridging two networks that are not directly linked (called filling social holes).


Beginning in the late 1990s, social network analysis experienced a further resurgence with work by sociologists, political scientists, economists, computer scientists, and physicists such as ], ], ], ], ], ], ], ], and others, developing and applying new models and methods, prompted in part by the emergence of new data available about online social networks as well as "digital traces" regarding face-to-face networks.
The power of social network theory stems from its difference from traditional sociological studies, which assume that it is the attributes of individual actors -- whether they are friendly or unfriendly, smart or dumb, etc. -- that matter. Social network theory produces an alternate view, where the attributes of individuals are less important than their relationships and ties with other actors within the network. This approach has turned out to be useful for explaining many real-world phenomena, but leaves less room for individual agency, the ability for individuals to influence their success, so much of it rests within the structure of their network.


Computational SNA has been extensively used in research on study-abroad second language acquisition.<ref name = Paradowskietal2022>{{cite journal |last1= Paradowski |first1=Michał B. |last2=Cierpich-Kozieł |first2=Agnieszka |last3=Chen |first3=Chih-Chun |last4=Ochab |first4=Jeremi K. |title=How output outweighs input and interlocutors matter for study-abroad SLA: Computational Social Network Analysis of learner interactions |journal=The Modern Language Journal |date=2022 |volume=106 |issue=4 |pages=694–725 |doi=10.1111/modl.12811|s2cid=255247273 |url=https://doi.org/10.1111/modl.12811}}</ref><ref name = Paradowskietal2024>{{cite journal |last1= Paradowski |first1=Michał B. |last2=Whitby |first2=Nicole |last3=Czuba |first3=Michał |last4=Bródka |first4=Piotr |title=Peer interaction dynamics and L2 learning trajectories during study abroad: A longitudinal investigation using dynamic computational Social Network Analysis |journal=Language Learning |date=2024 |volume=74 |issue=S2 |pages=58–115 |doi=10.1111/lang.12681|doi-access=free }}</ref> Even in the study of literature, network analysis has been applied by Anheier, Gerhards and Romo,<ref>{{cite journal |last1=Anheier |first1=Helmut K. |last2=Gerhards |first2=Jurgen |last3=Romo |first3=Frank P. |title=Forms of Capital and Social Structure in Cultural Fields: Examining Bourdieu's Social Topography |journal=American Journal of Sociology |date=January 1995 |volume=100 |issue=4 |pages=859–903 |doi=10.1086/230603 |s2cid=143587142 }}</ref> Wouter De Nooy,<ref>{{cite journal |last1=de Nooy |first1=Wouter |title=Fields and networks: correspondence analysis and social network analysis in the framework of field theory |journal=Poetics |date=October 2003 |volume=31 |issue=5–6 |pages=305–327 |doi=10.1016/s0304-422x(03)00035-4 }}</ref> and Burgert Senekal.<ref>{{cite journal |last1=Senekal |first1=Burgert |title=Die Afrikaanse literêre sisteem : 'n eksperimentele benadering met behulp van Sosiale-netwerk-analise (SNA) : geesteswetenskappe |trans-title=The Afrikaans literary system: an experimental approach using Social Network Analysis (SNA): humanities |language=Afrikaans |journal=Litnet Akademies |date=1 December 2012 |volume=9 |issue=3 |pages=614–638 |hdl=10520/EJC129817 }}</ref> Indeed, social network analysis has found applications in various academic disciplines as well as practical contexts such as countering ] and ].{{Citation needed|date=July 2024}}
Social networks have also been used to examine how companies interact with each other, characterizing the many informal connections that link executives together, as well as associations and connections between individual employees at different companies. These networks provide ways for companies to gather information, deter competition, and even ] in setting prices or policies.


==Metrics==
==Applications of social network theory==
].]]Size: The number of network members in a given network.
===Applications in social science===
Social network theory in the social sciences began with the urbanization studies of the "Manchester School" (centered around ]), done mainly in ] during the 1960s. It was followed up with the field of ], an attempt to quantify social relationships. Scholars such as ] expanded the use of social networks, and they are now used to help explain many different real-life phenomena in the social sciences. Power within organizations, for example, has been found to come more from the degree to which an individual within a network is at the center of many relationships than actual job title. Social networks also play a key role in hiring, in business success for firms, and in job performance.


===Connections===
Social network theory is an extremely active field within academia. The is an academic association of social network analysts. Many social network tools for scholarly work are available online (like ) and are relatively easy to use to present graphical images of networks.
]: The extent to which actors form ties with similar versus dissimilar others. Similarity can be defined by gender, race, age, occupation, educational achievement, status, values or any other salient characteristic.<ref>{{cite journal |last1=McPherson |first1=Miller |last2=Smith-Lovin |first2=Lynn |last3=Cook |first3=James M |title=Birds of a Feather: Homophily in Social Networks |journal=Annual Review of Sociology |date=August 2001 |volume=27 |issue=1 |pages=415–444 |doi=10.1146/annurev.soc.27.1.415 |s2cid=2341021 }}</ref> Homophily is also referred to as ].


Multiplexity: The number of content-forms contained in a tie.<ref name = "Podo97"/> For example, two people who are friends and also work together would have a multiplexity of 2.<ref>{{cite book |author1=Kilduff, M.|author2=Tsai, W. |year=2003 |title= Social networks and organisations |publisher=Sage Publications}}</ref> Multiplexity has been associated with relationship strength and can also comprise overlap of positive and negative network ties.<ref name=Brennecke2019>{{cite journal |last1=Brennecke |first1=Julia |title=Dissonant Ties in Intraorganizational Networks: Why Individuals Seek Problem-Solving Assistance from Difficult Colleagues |journal=Academy of Management Journal |date=June 2020 |volume=63 |issue=3 |pages=743–778 |doi=10.5465/amj.2017.0399 |s2cid=164852065 |oclc=8163488129 }}</ref>
] theory explores social networks and their role in influencing the spread of new ideas and practices. ]s and ]s often play major roles in spurring the adoption of innovations, although factors inherent to the innovations also play a role.


Mutuality/Reciprocity: The extent to which two actors reciprocate each other's friendship or other interaction.<ref name="Kadu12"/>
===Popular applications===
The so-called '''rule of 150''', states that the size of a genuine social network is limited to about 150 members (sometimes called the ). The rule arises from cross-cultural studies in ] and especially ] of the maximum size of a ] (in modern parlance most reasonably understood as an '']''). It is theorized in ] that the number may be some kind of limit of average human ability to ] members and track emotional facts about all members of a group. However, it may be due to ] and the need to track "]s", as larger groups tend to more freely allow ] and ] to prosper.


]: A measure of the completeness of relational triads. An individual's assumption of network closure (i.e. that their friends are also friends) is called transitivity. Transitivity is an outcome of the individual or situational trait of ].<ref name="Flyn10"/>
===Degrees of Separation and the Global Social Network===
The ] is the ] that the chain of social acquaintances required to connect one arbitrary person to another arbitrary person anywhere in the world is generally short. The concept gave rise to the famous phrase ] after a ] ''small world experiment'' by psychologist ] which found that two random ] citizens were connected by at most, six acquaintances. Current internet experiments continue to explore this phenomenon, including the Ohio State and Columbia's . ], these experiments confirm that about five to seven degrees of separation are sufficient for connecting any two people through the internet.


]: The tendency for actors to have more ties with geographically close others.
===Internet social networks===
{{main|Social network service}}


===Distributions===
:''See also: ]''
]: An individual whose weak ties fill a ], providing the only link between two individuals or clusters. It also includes the shortest route when a longer one is unfeasible due to a high risk of message distortion or delivery failure.<ref name="Granovetter, M. 1973 1360–1380">{{cite journal |last1=Granovetter |first1=Mark S. |title=The Strength of Weak Ties |journal=American Journal of Sociology |date=May 1973 |volume=78 |issue=6 |pages=1360–1380 |doi=10.1086/225469 |s2cid=59578641 }}</ref>


]: Centrality refers to a group of metrics that aim to quantify the "importance" or "influence" (in a variety of senses) of a particular node (or group) within a network.<ref>{{cite book|author=Hansen, Derek|title=Analyzing Social Media Networks with NodeXL|publisher=Morgan Kaufmann|year=2010|isbn=978-0-12-382229-1|page=32|url=https://books.google.com/books?id=rbxPm93PRY8C&pg=PA32|display-authors=etal}}</ref><ref>{{cite book|author=Liu, Bing|title=Web Data Mining: Exploring Hyperlinks, Contents, and Usage Data|publisher=Springer|year=2011|isbn=978-3-642-19459-7|page=271|url=https://books.google.com/books?id=jnCi0Cq1YVkC&pg=PA271}}</ref><ref>{{cite book|author=Hanneman, Robert A.|author2=Riddle, Mark|name-list-style=amp|chapter=Concepts and Measures for Basic Network Analysis|title=The Sage Handbook of Social Network Analysis|publisher=SAGE|year=2011|isbn=978-1-84787-395-8|pages=364–367|chapter-url=https://books.google.com/books?id=2chSmLzClXgC&pg=PA364}}</ref><ref>{{cite book|author1=Tsvetovat, Maksim |author2=Kouznetsov, Alexander|name-list-style=amp|title=Social Network Analysis for Startups: Finding Connections on the Social Web|publisher=O'Reilly|year=2011|isbn=978-1-4493-1762-1|page=45|url=https://books.google.com/books?id=hVOxjkoLSiEC&pg=PA45}}</ref> Examples of common methods of measuring "centrality" include ],<ref name="comprehensive"/> ], ], ], and ].<ref>{{cite journal |last1=Opsahl |first1=Tore |last2=Agneessens |first2=Filip |last3=Skvoretz |first3=John |title=Node centrality in weighted networks: Generalizing degree and shortest paths |journal=Social Networks |date=July 2010 |volume=32 |issue=3 |pages=245–251 |doi=10.1016/j.socnet.2010.03.006 }}</ref>
<!-- IMPORTANT NOTE FOR EDITORS OF THIS SECTION. This section tells the history of Internet social networks; it is not for advertising your favorite particular project or service. If you do make changes to this section, please make it encyclopedic, non-commercial, and about the history and importance of Internet social networks in general, rather than a specific service. One rule of thumb (taken from the NPOV suggestions) is that you should not be writing about your own social networking application.
-->
The first social networking website was ], which began in ]. Other sites followed, including ], which began in ]. It was not until ] that websites using the ''Circle of Friends'' online social networks started appearing. This form of social networking, widely used in ], became particularly popular in ] and flourished with the advent of a website called ]. There are over 200 social networking sites, though Friendster is one of the most successful at using the ''Circle of Friends'' technique. The popularity of these sites rapidly grew, and by ] ] was getting more page views than ]. Google has its own social network called ], launched in 2004. Social networking began to be seen as a vital component of internet strategy at around the same time: in March 2005 ] launched ], their entry into the field, and in July 2005 ] bought MySpace.


]: The proportion of direct ties in a network relative to the total number possible.<ref>{{cite book|chapter=Social Network Analysis|title=Field Manual 3-24: Counterinsurgency|publisher=Headquarters, ]|pages=B–11 – B–12|chapter-url=https://fas.org/irp/doddir/army/fm3-24.pdf}}</ref><ref>{{cite book|author=Xu, Guandong |title=Web Mining and Social Networking: Techniques and Applications|publisher=Springer|year=2010|isbn=978-1-4419-7734-2|page=25|url=https://books.google.com/books?id=mXo9zKeYa6cC&pg=PA25|display-authors=etal}}</ref>
In these communities, an initial set of founders sends out messages inviting members of their own personal networks to join the site. New members repeat the process, growing the total number of members and links in the network. Sites then offer features such as automatic address book updates, viewable profiles, the ability to form new links through "introduction services," and other forms of online social connections. Social networks can also be organized around business connections, as for example in the case of ] or ].


Distance: The minimum number of ties required to connect two particular actors, as popularized by ]'s ] and the idea of 'six degrees of separation'.
Blended networking is an approach to social networking that combines both offline elements (face-to-face events) and online elements. MySpace, for example, builds on independent music and party scenes, and ] mirrors a college community. ''See also ].'' The newest social networks on the Internet are becoming more focused on niches, such as Mesh Tennis for tennis, Joga (Nike/Google partnership) for soccer (football), CarSpace for car lovers, and Dogster for owners of dogs.


Structural holes: The absence of ties between two parts of a network. Finding and exploiting a structural hole can give an ] a competitive advantage. This concept was developed by sociologist ], and is sometimes referred to as an alternate conception of social capital.
<!-- IMPORTANT NOTE FOR EDITORS OF THIS SECTION (REPEATED). This section tells the history of Internet social networks, it is not for advertising your favorite particular project or service. If you do make changes to this section, please make it encyclopedic, non-commercial, and about the history and importance of Internet social networks in general, rather than a specific service. One rule of thumb (taken from the NPOV suggestions) is that you should not be writing about your own social networking application.-->


Tie Strength: Defined by the linear combination of time, emotional intensity, intimacy and reciprocity (i.e. mutuality).<ref name="Granovetter, M. 1973 1360–1380"/> Strong ties are associated with homophily, propinquity and transitivity, while weak ties are associated with bridges.
===Indices for Social Network Analysis===
;'''Betweenness''' :
* Degree an individual lies between other individuals in the network; the extent to which a node is directly connected only to those other nodes that are not directly connected to each other; an intermediary; liaisons; bridges. Therefore, it's the number of people who a person is connected to indirectly through their direct links. see also ]


===Segmentation===
;'''Closeness ''' :
Groups are identified as ']s' if every individual is directly tied to every other individual, ']s' if there is less stringency of direct contact, which is imprecise, or as ] blocks if precision is wanted.<ref name="uci"/>
* The degree an individual is near all other individuals in a network (directly or indirectly). It reflects the ability to access information through the "grapevine" of network members. Thus, closeness is the inverse of the sum of the shortest distances between each individual and every other person in the network. see also ]


]: A measure of the likelihood that two associates of a node are associates. A higher clustering coefficient indicates a greater 'cliquishness'.<ref>{{cite book|author=Hanneman, Robert A.|author2=Riddle, Mark|name-list-style=amp|chapter=Concepts and Measures for Basic Network Analysis|title=The Sage Handbook of Social Network Analysis|publisher=SAGE|year=2011|isbn=978-1-84787-395-8|pages=346–347|chapter-url=https://books.google.com/books?id=2chSmLzClXgC&pg=PA346}}</ref>
;'''Degree''' :
* The count of the number of ties to other actors in the network.


Cohesion: The degree to which actors are connected directly to each other by ]. ] refers to the minimum number of members who, if removed from a group, would disconnect the group.<ref name="asanet"/><ref>{{cite book|author=Pattillo, Jeffrey|chapter=Clique relaxation models in social network analysis|editor1=Thai, My T.|editor2=Pardalos, Panos M.|name-list-style=amp|title=Handbook of Optimization in Complex Networks: Communication and Social Networks|publisher=Springer|year=2011|isbn=978-1-4614-0856-7|page=149|chapter-url=https://books.google.com/books?id=bdRdcHxQQLQC&pg=PA149|display-authors=etal}}</ref>
;'''Eigenvector Centrality''' :
* ] is a measure of the importance of a ] in a ]. It assigns relative scores to all nodes in the network based on the principle that connections to nodes having a high score contribute more to the score of the node in question.


==Modelling and visualization of networks==
;'''Clustering Coefficient''' :
]
* A measure of the likelihood that two associates of a node are associates themselves. A higher clustering coefficient indicates a greater 'cliquishness'.
Visual representation of social networks is important to understand the network data and convey the result of the analysis.<ref>{{cite journal|url=http://www.cmu.edu/joss/content/articles/volume1/Freeman.html|author=Linton C. Freeman|title=Visualizing Social Networks|journal=Journal of Social Structure|volume=1}}</ref> Numerous methods of visualization for data produced by social network analysis have been presented.<ref>{{cite journal|last=Hamdaqa|first=Mohammad |author2=Tahvildari, Ladan |author3=LaChapelle, Neil |author4=Campbell, Brian|title=Cultural Scene Detection Using Reverse Louvain Optimization|journal=Science of Computer Programming|date=2014|doi=10.1016/j.scico.2014.01.006|volume=95|pages=44–72|url=https://zenodo.org/record/889712 |doi-access=free}}</ref><ref>{{cite conference|author=Bacher, R.|year=1995|title=Graphical Interaction and Visualization for the Analysis and Interpretation of Contingency Analysis Result|chapter=Graphical interaction and visualization for the analysis and interpretation of contingency analysis results |conference=Proceedings of the 1995 Power Industry Computer Applications|pages=128–134|location=Salt Lake City, USA|publisher=IEEE Power Engineering Society|doi=10.1109/PICA.1995.515175|isbn=0-7803-2663-6 }}</ref><ref>{{cite journal | last1 = Caschera | first1 = M. C. | last2 = Ferri | first2 = F. | last3 = Grifoni | first3 = P. | year = 2008 | title = SIM: A dynamic multidimensional visualization method for social networks | journal = PsychNology Journal | volume = 6 | issue = 3| pages = 291–320 }}</ref><ref>{{Cite web |title=Network Analysis and Modeling (CSCI 5352) |url=https://danlarremore.com/5352/ |access-date=2024-12-02 |website=danlarremore.com}}</ref> Many of the ] have modules for network visualization. The data is explored by displaying nodes and ties in various layouts and attributing colors, size, and other advanced properties to nodes. Visual representations of networks may be a powerful method for conveying complex information. Still, care should be taken in interpreting node and graph properties from visual displays alone, as they may misrepresent structural properties better captured through quantitative analyses.<ref name="interpreting"/>


]s can be used to illustrate good and bad relationships between humans. A positive edge between two nodes denotes a positive relationship (friendship, alliance, dating), and a negative edge denotes a negative relationship (hatred, anger). Signed social network graphs can be used to predict the future evolution of the graph. In ], there is the concept of "balanced" and "unbalanced" cycles. A balanced cycle is defined as a ] where the product of all the signs are positive. According to ], balanced graphs represent a group of people who are unlikely to change their opinions of the other people in the group. Unbalanced graphs represent a group of people who are very likely to change their opinions of the people in their group. For example, a group of 3 people (A, B, and C) where A and B have a positive relationship, B and C have a positive relationship. Still, C and A have a negative relationship, an unbalanced cycle. This group is very likely to morph into a balanced cycle, such as one where B only has a good relationship with A, and both A and B have a negative relationship with C. By using the concept of balanced and unbalanced cycles, the evolution of signed ]s can be predicted.<ref>{{cite journal |last1=Cartwright |first1=Dorwin |last2=Harary |first2=Frank |title=Structural balance: a generalization of Heider's theory. |journal=Psychological Review |date=1956 |volume=63 |issue=5 |pages=277–293 |doi=10.1037/h0046049 |pmid=13359597 |s2cid=14779113 }}</ref>
;'''Cohesion''' :
* Refers to the degree to which actors are connected directly to each other by cohesive bonds. Groups are identified as ‘cliques’ if every actor is directly tied to every other actor, or ‘social circles’ if there is less stringency of direct contact


Different approaches to participatory network mapping have proven useful, especially when using social network analysis as a tool for facilitating change. Here, participants/interviewers provide network data by mapping the network (with pen and paper or digitally) during the data collection session. An example of a pen-and-paper network mapping approach, which also includes the collection of some actor attributes (perceived influence and goals of actors) is the * ]. One benefit of this approach is that it allows researchers to collect qualitative data and ask clarifying questions while the network data is collected.<ref name="visualizing"/>
;'''Constraint''' :
*


===Social networking potential===
;'''Contagion''' :
Social Networking Potential (SNP) is a numeric ], derived through ]s<ref>{{cite book |doi=10.1145/2024288.2024326 |chapter=Measuring influence on Twitter |title=Proceedings of the 11th International Conference on Knowledge Management and Knowledge Technologies - i-KNOW '11 |year=2011 |last1=Anger |first1=Isabel |last2=Kittl |first2=Christian |page=1 |isbn=9781450307321 |s2cid=30427 }}</ref><ref>{{cite journal |last1=Riquelme |first1=Fabián |last2=González-Cantergiani |first2=Pablo |title=Measuring user influence on Twitter: A survey |journal=Information Processing & Management |date=September 2016 |volume=52 |issue=5 |pages=949–975 |doi=10.1016/j.ipm.2016.04.003 |arxiv=1508.07951 |s2cid=16343144 }}</ref> to represent both the size of an individual's ] and their ability to influence that network. SNP coefficients were first defined and used by Bob Gerstley in 2002. A closely related term is ], defined as a person with a high SNP.
*


SNP coefficients have two primary functions:
;'''Density''' :
# The ] of individuals based on their social networking potential, and
*Individual-level density is the degree a respondents ties know one another/ proportion of ties among an individual's nominees. Network or global-level density is the proportion of ties in a network relative to the total number possible (sparse versus dense networks).
# The weighting of ] in quantitative ] studies.


By calculating the SNP of respondents and by ] High SNP respondents, the ] and ] of quantitative marketing research used to drive ] strategies is enhanced.
;'''Integration''' :
*


] used to calculate an individual's SNP include but are not limited to: participation in Social Networking activities, group memberships, leadership roles, recognition, publication/editing/contributing to non-electronic media, publication/editing/contributing to electronic media (websites, blogs), and frequency of past distribution of information within their network. The acronym "SNP" and some of the first algorithms developed to quantify an individual's social networking potential were described in the white paper "Advertising Research is Changing" (Gerstley, 2003) See ].<ref>{{cite book|last1=(Hrsg.)|first1=Sara Rosengren|title=The Changing Roles of Advertising|date=2013|publisher=Springer Fachmedien Wiesbaden GmbH|location=Wiesbaden|isbn=9783658023645|url=https://www.springer.com/us/book/9783658023645|access-date=22 October 2015}}{{page needed|date=November 2021}}</ref>
; Group degree centralisation
* A measure of group dispersion or how network links focus on a specific node or nodes.


The first book<ref>Ahonen, T. T., Kasper, T., & Melkko, S. (2005). 3G marketing: communities and strategic partnerships. John Wiley & Sons.</ref> to discuss the commercial use of Alpha Users among mobile telecoms audiences was 3G Marketing by Ahonen, Kasper and Melkko in 2004. The first book to discuss Alpha Users more generally in the context of ] was Communities Dominate Brands by Ahonen & Moore in 2005. In 2012, Nicola Greco (]) presents at ] the Social Networking Potential as a parallelism to the ] that users generate and companies should use, stating that "SNP is the new asset that every company should aim to have".<ref>{{cite web|url=http://tedxtalks.ted.com/video/TEDxMilano-Nicola-Greco-on-math;search%3Atag%3A"technology"|title=Watch "TEDxMilano – Nicola Greco – on math and social network" Video at TEDxTalks|work=TEDxTalks}}</ref>
;'''Radiality''' :
* Degree an individual’s network reaches out into the network and provides novel information and influence


==Practical applications==
;'''Reach''' :
{{see also|Social network analysis in criminology}}
* The degree any member of a network can reach other members of the network
Social network analysis is used extensively in a wide range of applications and disciplines. Some common network analysis applications include data aggregation and ], network propagation modeling, network modeling and sampling, user attribute and behavior analysis, community-maintained resource support, location-based interaction analysis, ] and filtering, ]s development, and ] and entity resolution.<ref name="Golbeck" /> In the private sector, businesses use social network analysis to support activities such as customer interaction and analysis, ] development analysis,<ref>{{cite journal |last1=Aram |first1=Michael |last2=Neumann |first2=Gustaf |title=Multilayered analysis of co-development of business information systems |journal=Journal of Internet Services and Applications |date=1 July 2015 |volume=6 |issue=1 |pages=13 |doi=10.1186/s13174-015-0030-8 |s2cid=16502371 |doi-access=free }}</ref> marketing, and ] needs (see ]). Some public sector uses include development of leader engagement strategies, analysis of individual and group engagement and ], and ].


=== Longitudinal SNA in schools ===
;'''Structural Equivalence''' :
Large numbers of researchers worldwide examine the social networks of children and adolescents. In questionnaires, they list all classmates, students in the same grade, or schoolmates, asking: "Who are your best friends?". Students may sometimes nominate as many peers as they wish; other times, the number of nominations is limited. Social network researchers have investigated similarities in friendship networks. The similarity between friends was established as far back as classical antiquity.<ref>{{Cite journal |last1=McPherson |first1=Miller |last2=Smith-Lovin |first2=Lynn |last3=Cook |first3=James M |date=2001 |title=Birds of a Feather: Homophily in Social Networks |url=https://www.annualreviews.org/doi/10.1146/annurev.soc.27.1.415 |journal=Annual Review of Sociology |language=en |volume=27 |issue=1 |pages=415–444 |doi=10.1146/annurev.soc.27.1.415 |s2cid=2341021 |issn=0360-0572}}</ref> Resemblance is an important basis for the survival of friendships. Similarity in characteristics, attitudes, or behaviors means that friends understand each other more quickly, have common interests to talk about, know better where they stand with each other, and have more trust in each other.<ref>{{Cite journal |last1=Laursen |first1=Brett |last2=Veenstra |first2=René |date=2021 |title=Toward understanding the functions of peer influence: A summary and synthesis of recent empirical research |journal=Journal of Research on Adolescence |language=en |volume=31 |issue=4 |pages=889–907 |doi=10.1111/jora.12606 |issn=1050-8392 |pmc=8630732 |pmid=34820944}}</ref> As a result, such relationships are more stable and valuable. Moreover, looking more alike makes young people more confident and strengthens them in developing their identity.<ref>{{Cite web |title=Hallinan, M. T. (1980). Patterns of cliquing among youth. In H. C. Foot, A. J. Chapman, & J. R. Smith (Eds.), Friendship and social relations in children (pp. 321–342). New York, NY: Wiley. |url=https://psycnet.apa.org/record/1995-97220-012 |access-date=2023-03-10 |website=psycnet.apa.org |language=en}}</ref> Similarity in behavior can result from two processes: selection and influence. These two processes can be distinguished using longitudinal social network analysis in the R package SIENA (Simulation Investigation for Empirical Network Analyses), developed by ] and colleagues.<ref>{{Cite journal |last1=Snijders |first1=Tom A. B. |last2=van de Bunt |first2=Gerhard G. |last3=Steglich |first3=Christian E. G. |date=2010 |title=Introduction to stochastic actor-based models for network dynamics |url=https://www.sciencedirect.com/science/article/pii/S0378873309000069 |journal=Social Networks |series=Dynamics of Social Networks |language=en |volume=32 |issue=1 |pages=44–60 |doi=10.1016/j.socnet.2009.02.004 |issn=0378-8733}}</ref> Longitudinal social network analysis became mainstream after the publication of a special issue of the '']'' in 2013, edited by ] and containing 15 empirical papers.<ref>{{Cite web |last1=Veenstra |first1=René |last2=Laninga-Wijnen |first2=Lydia |year=2023 |title=The Prominence of Peer Interactions, Relationships, and Networks in Adolescence and Early Adulthood |url=https://osf.io/preprints/socarxiv/s57zm/ |access-date=2023-03-10 |website=osf.io |publisher=American Psychological Association}}</ref>
* Refers to the extent to which actors have a common set of linkages to other actors in the system. The actors don’t need to have any ties to each other to be structurally equivalent.


=== Security applications ===
;'''Structural Hole''' :
Social network analysis is also used in intelligence, ] and ] activities. This technique allows the analysts to map covert organizations such as an ] ring, an organized crime family or a street gang. The ] (NSA) uses its ] programs to generate the data needed to perform this type of analysis on terrorist cells and other networks deemed relevant to national security. The NSA looks up to three nodes deep during this network analysis.<ref name="nsa_degrees">{{cite news|url=https://www.theguardian.com/world/2013/jul/17/nsa-surveillance-house-hearing|date=17 July 2013|access-date=19 July 2013|title=NSA warned to rein in surveillance as agency reveals even greater scope|newspaper=The Guardian|last1=Ackerman|first1=Spencer}}</ref> After the initial mapping of the social network is complete, analysis is performed to determine the structure of the network and determine, for example, the leaders within the network.<ref name="nsa_how">{{cite web|url=http://www.digitaltonto.com/2013/how-the-nsa-uses-social-network-analysis-to-map-terrorist-networks/|date=12 June 2013|access-date=19 Jul 2013|title=How The NSA Uses Social Network Analysis To Map Terrorist Networks}}</ref> This allows military or law enforcement assets to launch capture-or-kill ]s on the ] in leadership positions to disrupt the functioning of the network.
* Static holes that can be strategically filled by connecting one or more links to link together other points. Linked to ideas of social capital: if you link to two people who are not linked you can control their communication.
The NSA has been performing social network analysis on ]s (CDRs), also known as ], since shortly after the ].<ref name="NSA_SNA">{{cite magazine|url=https://www.wired.com/science/discoveries/news/2006/05/70888|title=NSA Using Social Network Analysis|magazine=Wired|date=12 May 2006|access-date=19 July 2013}}</ref><ref name="nsa_usa">{{cite journal|url=http://www.slate.com/articles/news_and_politics/explainer/2006/05/how_the_nsa_does_social_network_analysis.html|date=11 May 2006|access-date=19 July 2013|title=NSA has massive database of Americans' phone calls |journal=Slate |last1=Dryer |first1=Alexander }}</ref>

=== Textual analysis applications ===
Large textual corpora can be turned into networks and then analyzed using social network analysis. In these networks, the nodes are Social Actors, and the links are Actions. The extraction of these networks can be automated by using parsers. The resulting networks, which can contain thousands of nodes, are then analyzed using tools from network theory to identify the key actors, the key communities or parties, and general properties such as the robustness or structural stability of the overall network or the centrality of certain nodes.<ref>{{cite journal |last1=Sudhahar |first1=Saatviga |last2=De Fazio |first2=Gianluca |last3=Franzosi |first3=Roberto |last4=Cristianini |first4=Nello |title=Network analysis of narrative content in large corpora |journal=Natural Language Engineering |date=January 2015 |volume=21 |issue=1 |pages=81–112 |doi=10.1017/S1351324913000247 |hdl=1983/dfb87140-42e2-486a-91d5-55f9007042df |s2cid=3385681 |url=https://research-information.bris.ac.uk/en/publications/dfb87140-42e2-486a-91d5-55f9007042df |hdl-access=free }}</ref> This automates the approach introduced by Quantitative Narrative Analysis,<ref>Quantitative Narrative Analysis; Roberto Franzosi; Emory University © 2010</ref> whereby subject-verb-object triplets are identified with pairs of actors linked by an action, or pairs formed by actor-object.<ref name="ReferenceA" />
]
In other approaches, textual analysis is carried out considering the network of words co-occurring in a text. In these networks, nodes are words and links among them are weighted based on their frequency of co-occurrence (within a specific maximum range).

=== Internet applications ===
Social network analysis has also been applied to understanding online behavior by individuals, organizations, and between websites.<ref name=Ghanbarnejad/> ] analysis can be used to analyze the connections between ]s or ] to examine how information flows as individuals navigate the web.<ref>{{cite journal |last1=Osterbur |first1=Megan |last2=Kiel |first2=Christina |title=A hegemon fighting for equal rights: the dominant role of COC Nederland in the LGBT transnational advocacy network |journal=Global Networks |date=April 2017 |volume=17 |issue=2 |pages=234–254 |doi=10.1111/glob.12126 }}</ref> The connections between organizations has been analyzed via hyperlink analysis to examine which organizations within an issue community.<ref>{{cite book |chapter-url=https://www.degruyter.com/document/doi/10.18574/nyu/9781479849468.003.0034/html |chapter-url-access=subscription |doi=10.18574/nyu/9781479849468.003.0034 |isbn=978-1-4798-4946-8 |chapter=Pink Links: Visualizing the Global LGBTQ Network |date=19 September 2017 |publisher=New York University Press |editor1-first=Marla |editor1-last=Brettschneider |editor2-first=Susan |editor2-last=Burgess |editor3-first=Christine |editor3-last=Keating |title=LGBTQ Politics |pages=493–522 }}</ref>

==== Netocracy ====
Another concept that has emerged from this connection between social network theory and the Internet is the concept of ], where several authors have emerged studying the correlation between the extended use of online social networks, and changes in social power dynamics.<ref>{{cite book|last1=Bard|first1=Alexander|last2=Sšderqvist|first2=Jan|title=The Netocracts: Futurica Trilogy 1|date=24 February 2012 |publisher=Stockholm Text|isbn=9789187173004|url=https://books.google.com/books?id=TeWCBwAAQBAJ&pg=PT131|access-date=3 March 2017|language=en}}</ref>

==== Social media internet applications ====
Social network analysis has been applied to social media as a tool to understand behavior between individuals or organizations through their linkages on social media websites such as ] and ].<ref>{{Cite book|last1=Kwak|first1=Haewoon|last2=Lee|first2=Changhyun|last3=Park|first3=Hosung|last4=Moon|first4=Sue|title=Proceedings of the 19th international conference on World wide web |chapter=What is Twitter, a social network or a news media? |date=2010-04-26|publisher=ACM|pages=591–600|doi=10.1145/1772690.1772751|isbn=9781605587998|citeseerx=10.1.1.212.1490|s2cid=207178765}}</ref>

===In computer-supported collaborative learning===
One of the most current methods of the application of SNA is to the study of ] (CSCL). When applied to CSCL, SNA is used to help understand how learners collaborate in terms of amount, frequency, and length, as well as the quality, topic, and strategies of communication.<ref name=":0">{{Cite journal|last1=Laat|first1=Maarten de|last2=Lally|first2=Vic|last3=Lipponen|first3=Lasse|last4=Simons|first4=Robert-Jan|date=2007-03-08|title=Investigating patterns of interaction in networked learning and computer-supported collaborative learning: A role for Social Network Analysis|journal=International Journal of Computer-Supported Collaborative Learning|language=en|volume=2|issue=1|pages=87–103|doi=10.1007/s11412-007-9006-4|s2cid=3238474}}</ref> Additionally, SNA can focus on specific aspects of the network connection, or the entire network as a whole. It uses graphical representations, written representations, and data representations to help examine the connections within a CSCL network.<ref name=":0" /> When applying SNA to a CSCL environment the interactions of the participants are treated as a social network. The focus of the analysis is on the "connections" made among the participants – how they interact and communicate – as opposed to how each participant behaved on his or her own.

====Key terms====
There are several key terms associated with social network analysis research in computer-supported collaborative learning such as: '''density''', '''centrality''', '''indegree''', '''outdegree''', and '''sociogram'''.
* '''Density''' refers to the "connections" between participants. Density is defined as the number of connections a participant has, divided by the total possible connections a participant could have. For example, if there are 20 people participating, each person could potentially connect to 19 other people. A density of 100% (19/19) is the greatest density in the system. A density of 5% indicates there is only 1 of 19 possible connections.<ref name=":0" />
* '''Centrality''' focuses on the behavior of individual participants within a network. It measures the extent to which an individual interacts with other individuals in the network. The more an individual connects to others in a network, the greater their centrality in the network.<ref name=":0" /><ref name=":1" />

In-degree and out-degree variables are related to centrality.
* '''In-degree''' centrality concentrates on a specific individual as the point of focus; centrality of all other individuals is based on their relation to the focal point of the "in-degree" individual.<ref name=":0" />
* '''Out-degree''' is a measure of centrality that still focuses on a single individual, but the analytic is concerned with the out-going interactions of the individual; the measure of out-degree centrality is how many times the focus point individual interacts with others.<ref name=":0" /><ref name=":1" />
* A '''sociogram''' is a visualization with defined boundaries of connections in the network. For example, a sociogram which shows out-degree centrality points for Participant A would illustrate all outgoing connections Participant A made in the studied network.<ref name=":0" />

====Unique capabilities====
Researchers employ social network analysis in the study of computer-supported collaborative learning in part due to the unique capabilities it offers. This particular method allows the study of interaction patterns within a ] and can help illustrate the extent of the participants' interactions with the other members of the group.<ref name=":0" /> The graphics created using SNA tools provide visualizations of the connections among participants and the strategies used to communicate within the group. Some authors also suggest that SNA provides a method of easily analyzing changes in participatory patterns of members over time.<ref>{{cite book |doi=10.4324/9780203763865-71 |chapter=Patterns of Interaction in Computer-supported Learning: A Social Network Analysis |title=International Conference of the Learning Sciences |year=2013 |pages=346–351 |isbn=9780203763865 }}</ref>

A number of research studies have applied SNA to CSCL across a variety of contexts. The findings include the correlation between a network's density and the teacher's presence,<ref name=":0" /> a greater regard for the recommendations of "central" participants,<ref>{{cite journal |last1=Martı́nez |first1=A. |last2=Dimitriadis |first2=Y. |last3=Rubia |first3=B. |last4=Gómez |first4=E. |last5=de la Fuente |first5=P. |title=Combining qualitative evaluation and social network analysis for the study of classroom social interactions |journal=Computers & Education |date=December 2003 |volume=41 |issue=4 |pages=353–368 |doi=10.1016/j.compedu.2003.06.001 |citeseerx=10.1.1.114.7474 |s2cid=10636524 }}</ref> infrequency of cross-gender interaction in a network,<ref>{{cite conference|author1=Cho, H.|author2=Stefanone, M.|author3=Gay, G|name-list-style=amp|year=2002|title=Social information sharing in a CSCL community|conference=Computer support for collaborative learning: Foundations for a CSCL community|location=Hillsdale, NJ|publisher=Lawrence Erlbaum|pages=43–50|citeseerx=10.1.1.225.5273}}</ref> and the relatively small role played by an instructor in an ] network.<ref>{{cite journal|author1=Aviv, R.|author2=Erlich, Z.|author3=Ravid, G.|author4=Geva, A.|name-list-style=amp|year=2003|title=Network analysis of knowledge construction in asynchronous learning networks|journal=Journal of Asynchronous Learning Networks|volume=7|issue=3|pages=1–23|citeseerx=10.1.1.2.9044}}</ref>

====Other methods used alongside SNA====
Although many studies have demonstrated the value of social network analysis within the computer-supported collaborative learning field,<ref name=":0" /> researchers have suggested that SNA by itself is not enough for achieving a full understanding of CSCL. The complexity of the interaction processes and the myriad sources of data make it difficult for SNA to provide an in-depth analysis of CSCL.<ref>{{Cite book|title=Groupware: Design, Implementation, and Use|last1=Daradoumis|first1=Thanasis|last2=Martínez-Monés|first2=Alejandra|last3=Xhafa|first3=Fatos|chapter=An Integrated Approach for Analysing and Assessing the Performance of Virtual Learning Groups |date=2004-09-05|publisher=Springer Berlin Heidelberg|isbn=9783540230168|editor-last=Vreede|editor-first=Gert-Jan de|series=Lecture Notes in Computer Science|volume=3198 |pages=|language=en|doi=10.1007/978-3-540-30112-7_25|editor-last2=Guerrero|editor-first2=Luis A.|editor-last3=Raventós|editor-first3=Gabriela Marín|hdl=2117/116654|s2cid=6605 |chapter-url-access=registration|chapter-url=https://archive.org/details/unset0000unse_i0a6/page/289}}</ref> Researchers indicate that SNA needs to be complemented with other methods of analysis to form a more accurate picture of collaborative learning experiences.<ref name=autogenerated1/>

A number of research studies have combined other types of analysis with SNA in the study of CSCL. This can be referred to as a multi-method approach or data ], which will lead to an increase of evaluation ] in CSCL studies.
* Qualitative method – The principles of qualitative case study research constitute a solid framework for the integration of SNA methods in the study of CSCL experiences.<ref>{{Cite journal|last=Johnson|first=Karen E.|date=1996-01-01|title=Review of The Art of Case Study Research|jstor=329758|journal=The Modern Language Journal|volume=80|issue=4|pages=556–557|doi=10.2307/329758}}</ref>
** ''] data'' such as student questionnaires and interviews and classroom non-participant observations<ref name=autogenerated1>{{cite journal|author1=Martínez, A.|author2=Dimitriadis, Y.|author3=Rubia, B.|author4=Gómez, E.|author5=de la Fuente, P.|date=2003-12-01|title=Combining qualitative evaluation and social network analysis for the study of classroom social interactions|journal=Computers & Education. Documenting Collaborative Interactions: Issues and Approaches|volume=41|issue=4|pages=353–368|doi=10.1016/j.compedu.2003.06.001|citeseerx=10.1.1.114.7474|s2cid=10636524 }}</ref>
** '']'': comprehensively study particular CSCL situations and relate findings to general schemes<ref name=autogenerated1 />
** '']:'' offers information about the content of the communication among members<ref name=autogenerated1 />
* Quantitative method – This includes simple descriptive statistical analyses on occurrences to identify particular attitudes of group members who have not been able to be tracked via SNA in order to detect general tendencies.
** ''Computer ]:'' provide automatic data on how collaborative tools are used by learners<ref name=autogenerated1 />
** '']'': charts similarities among actors, so that more similar input data is closer together<ref name=autogenerated1 />
** ''] tools:'' QUEST, SAMSA (System for Adjacency Matrix and Sociogram-based Analysis), and Nud*IST<ref name=autogenerated1 />


==See also== ==See also==
{{div col|colwidth=20em}}
* ] (Links people, organizations and concepts)
** ] * ]
** ] * ]
** ] * ]
** ] * ]
* ] * ]
* ]
** ]
** ] * ]
* ]
** ]
* ]
** ] (SNS)
** ] * ]
* ] * ]
** ] * ]
** ] * ]
** ] * ]
* ] * ]
* ]
** ] (An emerging intelligent network)
* ]
** ] (Mobile Social Software)
** ] (Yet Another Social Networking Service) * ]
* ]
** ] (Friend of a Friend)
* ]
** ] (ProfilePic)
* ]
* ]
* ]
* ]
* ]
* ]
* ]
{{div col end}}


==References== ==References==
{{reflist|colwidth=35em|refs=
*Hill, R. and Dunbar, R. 2002. "Social Network Size in Humans." Human Nature, Vol. 14, No. 1, pp. 53-72.
<ref name="asanet">{{cite journal |last1=Moody |first1=James |last2=White |first2=Douglas R. |title=Structural Cohesion and Embeddedness: A Hierarchical Concept of Social Groups |journal=American Sociological Review |date=February 2003 |volume=68 |issue=1 |pages=103 |doi=10.2307/3088904 |citeseerx=10.1.1.18.5695 |jstor=3088904 |s2cid=142591846 }}</ref>
<ref name="comprehensive">The most comprehensive reference is: {{cite book|author1=Wasserman, Stanley|author2=Faust, Katherine|name-list-style=amp|year=1994|title=Social Networks Analysis: Methods and Applications|location=Cambridge|publisher=Cambridge University Press|url=https://books.google.com/books?isbn=0521387078}} A short, clear basic summary is in {{cite journal|author1=Krebs, Valdis|author-link=Valdis Krebs|year=2000|title=The Social Life of Routers|journal=Internet Protocol Journal|volume=3 (December)|pages=14–25}}</ref>
<ref name="development">{{cite book|author=Linton Freeman|title=The Development of Social Network Analysis|location=Vancouver|publisher=Empirical Press|year=2006}}</ref>
<ref name="interpreting">{{cite journal |last1=McGrath |first1=Cathleen |last2=Blythe |first2=Jim |last3=Krackhardt |first3=David |title=The effect of spatial arrangement on judgments and errors in interpreting graphs |journal=Social Networks |date=August 1997 |volume=19 |issue=3 |pages=223–242 |doi=10.1016/S0378-8733(96)00299-7 |citeseerx=10.1.1.121.5856 }}</ref>
<ref name="uci"> is the R program for computing structural cohesion according to the Moody-White (2003) algorithm. This wiki site provides numerous examples and a tutorial for use with R.</ref>
<ref name="visualizing">{{cite journal |last1=Hogan |first1=Bernie |last2=Carrasco |first2=Juan Antonio |last3=Wellman |first3=Barry |title=Visualizing Personal Networks: Working with Participant-aided Sociograms |journal=Field Methods |date=May 2007 |volume=19 |issue=2 |pages=116–144 |doi=10.1177/1525822X06298589 |s2cid=61291563 }}</ref>
<ref name="Kadu12">{{cite book|author=Kadushin, C.|year=2012|title=Understanding social networks: Theories, concepts, and findings|location= Oxford|publisher=Oxford University Press|url=https://books.google.com/books?id=ALOhpMgkW_cC|isbn=9780195379471}}</ref>
<ref name="Podo97">{{cite journal |last1=Podolny |first1=Joel M. |last2=Baron |first2=James N. |title=Resources and Relationships: Social Networks and Mobility in the Workplace |journal=American Sociological Review |date=October 1997 |volume=62 |issue=5 |pages=673 |doi=10.2307/2657354 |jstor=2657354 |citeseerx=10.1.1.114.6822 }}</ref>
<ref name="Flyn10">{{cite journal |last1=Flynn |first1=Francis J. |last2=Reagans |first2=Ray E. |last3=Guillory |first3=Lucia |title=Do you two know each other? Transitivity, homophily, and the need for (network) closure. |journal=Journal of Personality and Social Psychology |date=2010 |volume=99 |issue=5 |pages=855–869 |doi=10.1037/a0020961 |pmid=20954787 |s2cid=6335920 }}</ref>
<ref name="Golbeck">{{cite book|author1=Golbeck, J.|year=2013|title=Analyzing the Social Web|publisher= Morgan Kaufmann|isbn=978-0-12-405856-9}}</ref>
}}


==Further reading==
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==External links==
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Latest revision as of 07:03, 30 December 2024

Analysis of social structures using network and graph theory This article is about the theoretical concept. For quantitative application to social media, see social media analytics. For social networking sites, see social networking service. For other uses, see Social network (disambiguation).

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A social network diagram displaying friendship ties among a set of Facebook users.

Social network analysis (SNA) is the process of investigating social structures through the use of networks and graph theory. It characterizes networked structures in terms of nodes (individual actors, people, or things within the network) and the ties, edges, or links (relationships or interactions) that connect them. Examples of social structures commonly visualized through social network analysis include social media networks, meme proliferation, information circulation, friendship and acquaintance networks, business networks, knowledge networks, difficult working relationships, collaboration graphs, kinship, disease transmission, and sexual relationships. These networks are often visualized through sociograms in which nodes are represented as points and ties are represented as lines. These visualizations provide a means of qualitatively assessing networks by varying the visual representation of their nodes and edges to reflect attributes of interest.

Social network analysis has emerged as a key technique in modern sociology. It has also gained significant popularity in the following: anthropology, biology, demography, communication studies, economics, geography, history, information science, organizational studies, physics, political science, public health, social psychology, development studies, sociolinguistics, and computer science, education and distance education research, and is now commonly available as a consumer tool (see the list of SNA software).

History

Social network analysis has its theoretical roots in the work of early sociologists such as Georg Simmel and Émile Durkheim, who wrote about the importance of studying patterns of relationships that connect social actors. Social scientists have used the concept of "social networks" since early in the 20th century to connote complex sets of relationships between members of social systems at all scales, from interpersonal to international.

In the 1930s Jacob Moreno and Helen Jennings introduced basic analytical methods. In 1954, John Arundel Barnes started using the term systematically to denote patterns of ties, encompassing concepts traditionally used by the public and those used by social scientists: bounded groups (e.g., tribes, families) and social categories (e.g., gender, ethnicity).

Starting in the 1970s, scholars such as Ronald Burt, Kathleen Carley, Mark Granovetter, David Krackhardt, Edward Laumann, Anatol Rapoport, Barry Wellman, Douglas R. White, and Harrison White expanded the use of systematic social network analysis.

Beginning in the late 1990s, social network analysis experienced a further resurgence with work by sociologists, political scientists, economists, computer scientists, and physicists such as Duncan J. Watts, Albert-László Barabási, Peter Bearman, Nicholas A. Christakis, James H. Fowler, Mark Newman, Matthew Jackson, Jon Kleinberg, and others, developing and applying new models and methods, prompted in part by the emergence of new data available about online social networks as well as "digital traces" regarding face-to-face networks.

Computational SNA has been extensively used in research on study-abroad second language acquisition. Even in the study of literature, network analysis has been applied by Anheier, Gerhards and Romo, Wouter De Nooy, and Burgert Senekal. Indeed, social network analysis has found applications in various academic disciplines as well as practical contexts such as countering money laundering and terrorism.

Metrics

Hue (from red=min to blue=max) indicates each node's betweenness centrality.

Size: The number of network members in a given network.

Connections

Homophily: The extent to which actors form ties with similar versus dissimilar others. Similarity can be defined by gender, race, age, occupation, educational achievement, status, values or any other salient characteristic. Homophily is also referred to as assortativity.

Multiplexity: The number of content-forms contained in a tie. For example, two people who are friends and also work together would have a multiplexity of 2. Multiplexity has been associated with relationship strength and can also comprise overlap of positive and negative network ties.

Mutuality/Reciprocity: The extent to which two actors reciprocate each other's friendship or other interaction.

Network Closure: A measure of the completeness of relational triads. An individual's assumption of network closure (i.e. that their friends are also friends) is called transitivity. Transitivity is an outcome of the individual or situational trait of Need for Cognitive Closure.

Propinquity: The tendency for actors to have more ties with geographically close others.

Distributions

Bridge: An individual whose weak ties fill a structural hole, providing the only link between two individuals or clusters. It also includes the shortest route when a longer one is unfeasible due to a high risk of message distortion or delivery failure.

Centrality: Centrality refers to a group of metrics that aim to quantify the "importance" or "influence" (in a variety of senses) of a particular node (or group) within a network. Examples of common methods of measuring "centrality" include betweenness centrality, closeness centrality, eigenvector centrality, alpha centrality, and degree centrality.

Density: The proportion of direct ties in a network relative to the total number possible.

Distance: The minimum number of ties required to connect two particular actors, as popularized by Stanley Milgram's small world experiment and the idea of 'six degrees of separation'.

Structural holes: The absence of ties between two parts of a network. Finding and exploiting a structural hole can give an entrepreneur a competitive advantage. This concept was developed by sociologist Ronald Burt, and is sometimes referred to as an alternate conception of social capital.

Tie Strength: Defined by the linear combination of time, emotional intensity, intimacy and reciprocity (i.e. mutuality). Strong ties are associated with homophily, propinquity and transitivity, while weak ties are associated with bridges.

Segmentation

Groups are identified as 'cliques' if every individual is directly tied to every other individual, 'social circles' if there is less stringency of direct contact, which is imprecise, or as structurally cohesive blocks if precision is wanted.

Clustering coefficient: A measure of the likelihood that two associates of a node are associates. A higher clustering coefficient indicates a greater 'cliquishness'.

Cohesion: The degree to which actors are connected directly to each other by cohesive bonds. Structural cohesion refers to the minimum number of members who, if removed from a group, would disconnect the group.

Modelling and visualization of networks

Different characteristics of social networks. A, B, and C show varying centrality and density of networks; panel D shows network closure, i.e., when two actors, tied to a common third actor, tend to also form a direct tie between them. Panel E represents two actors with different attributes (e.g., organizational affiliation, beliefs, gender, education) who tend to form ties. Panel F consists of two types of ties: friendship (solid line) and dislike (dashed line). In this case, two actors being friends both dislike a common third (or, similarly, two actors that dislike a common third tend to be friends).

Visual representation of social networks is important to understand the network data and convey the result of the analysis. Numerous methods of visualization for data produced by social network analysis have been presented. Many of the analytic software have modules for network visualization. The data is explored by displaying nodes and ties in various layouts and attributing colors, size, and other advanced properties to nodes. Visual representations of networks may be a powerful method for conveying complex information. Still, care should be taken in interpreting node and graph properties from visual displays alone, as they may misrepresent structural properties better captured through quantitative analyses.

Signed graphs can be used to illustrate good and bad relationships between humans. A positive edge between two nodes denotes a positive relationship (friendship, alliance, dating), and a negative edge denotes a negative relationship (hatred, anger). Signed social network graphs can be used to predict the future evolution of the graph. In signed social networks, there is the concept of "balanced" and "unbalanced" cycles. A balanced cycle is defined as a cycle where the product of all the signs are positive. According to balance theory, balanced graphs represent a group of people who are unlikely to change their opinions of the other people in the group. Unbalanced graphs represent a group of people who are very likely to change their opinions of the people in their group. For example, a group of 3 people (A, B, and C) where A and B have a positive relationship, B and C have a positive relationship. Still, C and A have a negative relationship, an unbalanced cycle. This group is very likely to morph into a balanced cycle, such as one where B only has a good relationship with A, and both A and B have a negative relationship with C. By using the concept of balanced and unbalanced cycles, the evolution of signed social network graphs can be predicted.

Different approaches to participatory network mapping have proven useful, especially when using social network analysis as a tool for facilitating change. Here, participants/interviewers provide network data by mapping the network (with pen and paper or digitally) during the data collection session. An example of a pen-and-paper network mapping approach, which also includes the collection of some actor attributes (perceived influence and goals of actors) is the * Net-map toolbox. One benefit of this approach is that it allows researchers to collect qualitative data and ask clarifying questions while the network data is collected.

Social networking potential

Social Networking Potential (SNP) is a numeric coefficient, derived through algorithms to represent both the size of an individual's social network and their ability to influence that network. SNP coefficients were first defined and used by Bob Gerstley in 2002. A closely related term is Alpha User, defined as a person with a high SNP.

SNP coefficients have two primary functions:

  1. The classification of individuals based on their social networking potential, and
  2. The weighting of respondents in quantitative marketing research studies.

By calculating the SNP of respondents and by targeting High SNP respondents, the strength and relevance of quantitative marketing research used to drive viral marketing strategies is enhanced.

Variables used to calculate an individual's SNP include but are not limited to: participation in Social Networking activities, group memberships, leadership roles, recognition, publication/editing/contributing to non-electronic media, publication/editing/contributing to electronic media (websites, blogs), and frequency of past distribution of information within their network. The acronym "SNP" and some of the first algorithms developed to quantify an individual's social networking potential were described in the white paper "Advertising Research is Changing" (Gerstley, 2003) See Viral Marketing.

The first book to discuss the commercial use of Alpha Users among mobile telecoms audiences was 3G Marketing by Ahonen, Kasper and Melkko in 2004. The first book to discuss Alpha Users more generally in the context of social marketing intelligence was Communities Dominate Brands by Ahonen & Moore in 2005. In 2012, Nicola Greco (UCL) presents at TEDx the Social Networking Potential as a parallelism to the potential energy that users generate and companies should use, stating that "SNP is the new asset that every company should aim to have".

Practical applications

See also: Social network analysis in criminology

Social network analysis is used extensively in a wide range of applications and disciplines. Some common network analysis applications include data aggregation and mining, network propagation modeling, network modeling and sampling, user attribute and behavior analysis, community-maintained resource support, location-based interaction analysis, social sharing and filtering, recommender systems development, and link prediction and entity resolution. In the private sector, businesses use social network analysis to support activities such as customer interaction and analysis, information system development analysis, marketing, and business intelligence needs (see social media analytics). Some public sector uses include development of leader engagement strategies, analysis of individual and group engagement and media use, and community-based problem solving.

Longitudinal SNA in schools

Large numbers of researchers worldwide examine the social networks of children and adolescents. In questionnaires, they list all classmates, students in the same grade, or schoolmates, asking: "Who are your best friends?". Students may sometimes nominate as many peers as they wish; other times, the number of nominations is limited. Social network researchers have investigated similarities in friendship networks. The similarity between friends was established as far back as classical antiquity. Resemblance is an important basis for the survival of friendships. Similarity in characteristics, attitudes, or behaviors means that friends understand each other more quickly, have common interests to talk about, know better where they stand with each other, and have more trust in each other. As a result, such relationships are more stable and valuable. Moreover, looking more alike makes young people more confident and strengthens them in developing their identity. Similarity in behavior can result from two processes: selection and influence. These two processes can be distinguished using longitudinal social network analysis in the R package SIENA (Simulation Investigation for Empirical Network Analyses), developed by Tom Snijders and colleagues. Longitudinal social network analysis became mainstream after the publication of a special issue of the Journal of Research on Adolescence in 2013, edited by René Veenstra and containing 15 empirical papers.

Security applications

Social network analysis is also used in intelligence, counter-intelligence and law enforcement activities. This technique allows the analysts to map covert organizations such as an espionage ring, an organized crime family or a street gang. The National Security Agency (NSA) uses its electronic surveillance programs to generate the data needed to perform this type of analysis on terrorist cells and other networks deemed relevant to national security. The NSA looks up to three nodes deep during this network analysis. After the initial mapping of the social network is complete, analysis is performed to determine the structure of the network and determine, for example, the leaders within the network. This allows military or law enforcement assets to launch capture-or-kill decapitation attacks on the high-value targets in leadership positions to disrupt the functioning of the network. The NSA has been performing social network analysis on call detail records (CDRs), also known as metadata, since shortly after the September 11 attacks.

Textual analysis applications

Large textual corpora can be turned into networks and then analyzed using social network analysis. In these networks, the nodes are Social Actors, and the links are Actions. The extraction of these networks can be automated by using parsers. The resulting networks, which can contain thousands of nodes, are then analyzed using tools from network theory to identify the key actors, the key communities or parties, and general properties such as the robustness or structural stability of the overall network or the centrality of certain nodes. This automates the approach introduced by Quantitative Narrative Analysis, whereby subject-verb-object triplets are identified with pairs of actors linked by an action, or pairs formed by actor-object.

Narrative network of US Elections 2012

In other approaches, textual analysis is carried out considering the network of words co-occurring in a text. In these networks, nodes are words and links among them are weighted based on their frequency of co-occurrence (within a specific maximum range).

Internet applications

Social network analysis has also been applied to understanding online behavior by individuals, organizations, and between websites. Hyperlink analysis can be used to analyze the connections between websites or webpages to examine how information flows as individuals navigate the web. The connections between organizations has been analyzed via hyperlink analysis to examine which organizations within an issue community.

Netocracy

Another concept that has emerged from this connection between social network theory and the Internet is the concept of netocracy, where several authors have emerged studying the correlation between the extended use of online social networks, and changes in social power dynamics.

Social media internet applications

Social network analysis has been applied to social media as a tool to understand behavior between individuals or organizations through their linkages on social media websites such as Twitter and Facebook.

In computer-supported collaborative learning

One of the most current methods of the application of SNA is to the study of computer-supported collaborative learning (CSCL). When applied to CSCL, SNA is used to help understand how learners collaborate in terms of amount, frequency, and length, as well as the quality, topic, and strategies of communication. Additionally, SNA can focus on specific aspects of the network connection, or the entire network as a whole. It uses graphical representations, written representations, and data representations to help examine the connections within a CSCL network. When applying SNA to a CSCL environment the interactions of the participants are treated as a social network. The focus of the analysis is on the "connections" made among the participants – how they interact and communicate – as opposed to how each participant behaved on his or her own.

Key terms

There are several key terms associated with social network analysis research in computer-supported collaborative learning such as: density, centrality, indegree, outdegree, and sociogram.

  • Density refers to the "connections" between participants. Density is defined as the number of connections a participant has, divided by the total possible connections a participant could have. For example, if there are 20 people participating, each person could potentially connect to 19 other people. A density of 100% (19/19) is the greatest density in the system. A density of 5% indicates there is only 1 of 19 possible connections.
  • Centrality focuses on the behavior of individual participants within a network. It measures the extent to which an individual interacts with other individuals in the network. The more an individual connects to others in a network, the greater their centrality in the network.

In-degree and out-degree variables are related to centrality.

  • In-degree centrality concentrates on a specific individual as the point of focus; centrality of all other individuals is based on their relation to the focal point of the "in-degree" individual.
  • Out-degree is a measure of centrality that still focuses on a single individual, but the analytic is concerned with the out-going interactions of the individual; the measure of out-degree centrality is how many times the focus point individual interacts with others.
  • A sociogram is a visualization with defined boundaries of connections in the network. For example, a sociogram which shows out-degree centrality points for Participant A would illustrate all outgoing connections Participant A made in the studied network.

Unique capabilities

Researchers employ social network analysis in the study of computer-supported collaborative learning in part due to the unique capabilities it offers. This particular method allows the study of interaction patterns within a networked learning community and can help illustrate the extent of the participants' interactions with the other members of the group. The graphics created using SNA tools provide visualizations of the connections among participants and the strategies used to communicate within the group. Some authors also suggest that SNA provides a method of easily analyzing changes in participatory patterns of members over time.

A number of research studies have applied SNA to CSCL across a variety of contexts. The findings include the correlation between a network's density and the teacher's presence, a greater regard for the recommendations of "central" participants, infrequency of cross-gender interaction in a network, and the relatively small role played by an instructor in an asynchronous learning network.

Other methods used alongside SNA

Although many studies have demonstrated the value of social network analysis within the computer-supported collaborative learning field, researchers have suggested that SNA by itself is not enough for achieving a full understanding of CSCL. The complexity of the interaction processes and the myriad sources of data make it difficult for SNA to provide an in-depth analysis of CSCL. Researchers indicate that SNA needs to be complemented with other methods of analysis to form a more accurate picture of collaborative learning experiences.

A number of research studies have combined other types of analysis with SNA in the study of CSCL. This can be referred to as a multi-method approach or data triangulation, which will lead to an increase of evaluation reliability in CSCL studies.

  • Qualitative method – The principles of qualitative case study research constitute a solid framework for the integration of SNA methods in the study of CSCL experiences.
    • Ethnographic data such as student questionnaires and interviews and classroom non-participant observations
    • Case studies: comprehensively study particular CSCL situations and relate findings to general schemes
    • Content analysis: offers information about the content of the communication among members
  • Quantitative method – This includes simple descriptive statistical analyses on occurrences to identify particular attitudes of group members who have not been able to be tracked via SNA in order to detect general tendencies.
    • Computer log files: provide automatic data on how collaborative tools are used by learners
    • Multidimensional scaling (MDS): charts similarities among actors, so that more similar input data is closer together
    • Software tools: QUEST, SAMSA (System for Adjacency Matrix and Sociogram-based Analysis), and Nud*IST

See also

References

  1. Otte, Evelien; Rousseau, Ronald (December 2002). "Social network analysis: a powerful strategy, also for the information sciences". Journal of Information Science. 28 (6): 441–453. doi:10.1177/016555150202800601. S2CID 17454166.
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