The Wason Selection Task

Try out the demo here (which does not like to be embedded on this site)

based on:

• Cosmides, L. & Tooby, J. (1992). Cognitive adaptions for social exchange. In Barkow, J.; Cosmides, L.; Tooby, J. (eds.). The adapted mind: Evolutionary psychology and the generation of culture. New York: Oxford University Press. pp. 163–228. ISBN 978-0-19-506023-2.
• Wason, P.C. (1968). Reasoning about a rule. *Quarterly Journal of Experimental Psychology. 20 (3): 273–Ω281. doi:10.1080/14640746808400161.