Participants (professional players recruited from twoplustwo.com) estimated the frequencies of different 3-card combinations in a 52 card deck and 3-ball combinations in a 52 ball urn (mathematically identical questions). They also answered surveys on poker playing habits and gamblers fallacy questionnaire.
zhu2022.coherenceaccuracy.e2An object of class data.frame with 186 rows and 23 columns.
See exact questions in original paper's supplementary materials (Appendix B). These data are licensed under CC BY 4.0, reproduced from materials in OSF.
value here is always professional (in contrast to Experiment 1)
Answers to the poker questions
Answers to the ball questions
number of correct answers in gambler's fallacy questionnaire
Inferred poker playing time in the last 12 months
judged similarity between the Card and Ball task (0=all equal, 1=all differ, 0.5=answers differ but urn and deck were equal)
Zhu J, Newall PW, Sundh J, Chater N, Sanborn AN (2022). “Clarifying the Relationship between Coherence and Accuracy in Probability Judgments.” Cognition, 223, 105022. doi:10.1016/j.cognition.2022.105022 .