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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 Wason was the grandson of Eugene Wason, [2] and the son of Eugene Monier and Kathleen (Woodhouse) Wason. [3] Wason married Marjorie Vera Salberg in 1951, and the couple had two children, Armorer and Sarah. [3] His uncle was Lieutenant General Sydney Rigby Wason. Peter Wason endured his schooling, which was marked by consistent failure. [2]
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 ...
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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).
English: Wason selection task. Which card(s) must be turned over to show that if a card shows an even number on one face, then its opposite face is blue? Shows 4 cards: ones labelled '3' and '8', a blue card and a red card.
Besides providing evidence of common descent, he introduced a mechanism to explain it: natural selection. According to Dennett, natural selection is a mindless, mechanical and algorithmic process—Darwin's dangerous idea. The third chapter introduces the concept of "skyhooks" and "cranes" (see below).
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.