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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.
Peter Cathcart Wason (22 April 1924 – 17 April 2003) was an English cognitive psychologist at University College, London, who pioneered the psychology of reasoning. He sought to explain why people consistently commit logical errors.
However, confirmation bias does not necessarily require motivation. In 1960, Peter Cathcart Wason conducted an experiment in which participants first viewed three numbers and then created a hypothesis in the form of a rule that could have been used to create that triplet of numbers. When testing their hypotheses, participants tended to only ...
John Cathcart Wason (17 November 1848 – 19 April 1921), [1] generally known as Cathcart Wason, was a Scottish farmer and politician who served as a Member of Parliament in two countries: first in New Zealand and then in Scotland.
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.
"Behavioral sink" is a term invented by ethologist John B. Calhoun to describe a collapse in behavior that can result from overpopulation.The term and concept derive from a series of over-population experiments Calhoun conducted on Norway rats between 1958 and 1962. [1]
The THOG problem is one of cognitive psychologist Peter Wason's logic puzzles, constructed to show some of the weaknesses in human thinking. You are shown four symbols a black square; a white square; a black circle; a white circle; and told by the experimenter "I have picked one colour (black or white) and one shape (square or circle).
[43] This example, first discussed by Peter Cathcart Wason and Shuli Reich in 1979, is very often initially perceived as having the meaning "No head injury should be ignored—even if it's trivial", even though upon careful consideration the sentence actually says "All head injuries should be ignored—even trivial ones." The authors illustrate ...