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The Wason selection task (or four-card problem) is a logic puzzle devised by Peter Cathcart Wason in 1966. [1] [2] [3] It is one of the most famous tasks in the study of deductive reasoning. [4] An example of the puzzle is: You are shown a set of four cards placed on a table, each of which has a number on one side and a color on the other.
Wason created the Selection Task, also known as the 4-card task, in 1966. In this task, participants were exposed to four cards on a table, and given a rule by the experimenter. The participants were then told to choose just cards to determine whether the rule given to them by the experimenter was true or false.
The Wason selection task provides evidence for the matching bias. [15] The test is designed as a measure of a person's logical thinking ability. [50] Performance on the Wason Selection Task is sensitive to the content and context with which it is presented. If you introduce a negative component into the conditional statement of the Wason ...
However, in Wason's rule discovery task the answer—three numbers in ascending order—is very broad, so positive tests are unlikely to yield informative answers. Klayman and Ha supported their analysis by citing an experiment that used the labels "DAX" and "MED" in place of "fits the rule" and "doesn't fit the rule".
This requires a different selection answer, as the 8, brown, and red cards must be turned over to guarantee equivalence. It is an implication in the article text: "if a card shows an even number on one face, then its opposite face shows a primary colour" The subtlety of implication is much of the point of the Wason selection task.
American Murder reveals that Petito placed a call to her ex-boyfriend, but he was working and unable to answer the phone. The pair was then spotted on the security camera footage of a nearby Whole ...
Jonathan St B. T. Evans (born 30 June 1948) [2] is a British cognitive psychologist, currently Emeritus Professor of Psychology at the University of Plymouth. [3] In 1975, with Peter Wason, Evans proposed one of the first dual-process theories of reasoning, an idea later developed and popularized by Daniel Kahneman.
Cosmides, L. (1989) "The logic of social exchange: Has natural selection shaped how humans reason? Studies with the Wason selection task," Cognition , 31, 187–276. Cosmides, L. & Tooby, J. (1992) "Cognitive adaptations for social exchange," in Barkow, J., Cosmides, L. & Tooby, J., (eds) (1992) The adapted mind: Evolutionary psychology and the ...