Blue–seven phenomenon - Misplaced Pages

Purported social preference phenomenon

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The blue–seven phenomenon is a social phenomenon in which a purported statistical majority of people in the US choose the color blue and number seven when asked to randomly select a color and a single digit number. The cause of the cognitive bias is not understood, though it has been posited that both colors and numbers are imbued with layers of significance.

The existence of the phenomenon has been disputed. Outside of the US these preferences may not hold. In other countries, differences occur, particularly in Northern Ireland where a noted bias of green and eight results in a green–eight phenomenon.

References

Benel, Russell A. (January 1976). "The "Blue–Seven Phenomenon" or the "Blue, Seven, … Phenomena"?". The Journal of General Psychology. 94 (1): 145–146. doi:10.1080/00221309.1976.9711600.
Saito, Miho (October 1999). ""Blue and Seven Phenomena" among Japanese Students". Perceptual and Motor Skills. 89 (2): 532–536. doi:10.2466/pms.1999.89.2.532.
Richard C Boutwell; Patrice Fennell (Oct 1, 1974). "Investigation and theoretical consideration of the "blue–seven" phenomenon". The Journal of General Psychology. 91: 301–302.
Simon, William E. (October 1971). "Number and Color Responses of Some College Students: Preliminary Evidence for a "Blue Seven Phenomenon"". Perceptual and Motor Skills. 33 (2): 373–374. doi:10.2466/pms.1971.33.2.373.
Christenfeld, Nicholas (Jan 1995). "Choices from Identical Options". Psychological Science. 6 (1): 50–55. doi:10.1111/j.1467-9280.1995.tb00304.x. JSTOR 40062876.
Trueman, John (July 1979). "Existence and Robustness of the Blue and Seven Phenomena". The Journal of General Psychology. 101 (1): 23–26. doi:10.1080/00221309.1979.9920057.
Knowles, Philip L. (October 1977). "The "Blue Seven" is Not a Phenomenon". Perceptual and Motor Skills. 45 (2): 648–650. doi:10.2466/pms.1977.45.2.648.
Wiegersma, Sjoerd; Van Der Elst, Gerard (February 1988). ""Blue Phenomenon": Spontaneity or Preference?". Perceptual and Motor Skills. 66 (1): 308–310. doi:10.2466/pms.1988.66.1.308.
Letzter, Rafi (Aug 12, 2016). "Billions of people have the same favorite color and number, and scientists don't know why". Business Insider.

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Cognitive biases	Acquiescence Ambiguity Affinity Anchoring Attentional Attribution Actor–observer Correspondence Authority Automation Availability Mean world Belief Blind spot Choice-supportive Commitment Confirmation Selective perception Compassion fade Congruence Cultural Declinism Distinction Dunning–Kruger Egocentric Curse of knowledge Emotional Extrinsic incentives Fading affect Framing Frequency Frog pond effect Halo effect Hindsight Horn effect Hostile attribution Impact Implicit In-group Intentionality Illusion of transparency Mean world syndrome Mere-exposure effect Narrative Negativity Normalcy Omission Optimism Out-group homogeneity Outcome Overton window Precision Present Pro-innovation Proximity Response Restraint Self-serving Social comparison Social influence bias Spotlight Status quo Substitution Time-saving Trait ascription Turkey illusion von Restorff effect Zero-risk In animals
Statistical biases	Estimator Forecast Healthy user Information Psychological Lead time Length time Non-response Observer Omitted-variable Participation Recall Sampling Selection Self-selection Social desirability Spectrum Survivorship Systematic error Systemic Verification Wet
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Bias reduction	Cognitive bias mitigation Debiasing Heuristics in judgment and decision-making
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