Conjunctive probabilistic reasoning has been studied at different ages to ascertain whether the conjunction fallacy is due to a task demand misinterpretation. Such a misinterpretation might occur because a task that requires a comparison between a superordinate class A and a subordinate class A&B is mistakenly interpreted as requiring a comparison between the two complementary subordinate classes of A (i.e., A&B and A¬B). Children (7- and 10-year-olds) and adults were required to make conjunctive probability judgments about problems for which explicit objective probabilities were provided. The total number of A items was kept constant and the frequencies of the A&B and of the A¬B items varied across problems. When the number of A&B items was smaller than the number of A¬B items, the frequency of congruent responses increased with age. When the number of A&B items was greater or equal to that of the A¬B items, the frequency of correct answers decreased.

Age-Trend related Differences in Task Involving Conjunctive Probabilistic Reasoning / F. Chiesi; G. Gronchi; C. Primi. - In: CANADIAN JOURNAL OF EXPERIMENTAL PSYCHOLOGY. - ISSN 1196-1961. - STAMPA. - 62 (3):(2008), pp. 188-191. [10.1037/1196-1961.62.3.188]

Age-Trend related Differences in Task Involving Conjunctive Probabilistic Reasoning

CHIESI, FRANCESCA;G. Gronchi;PRIMI, CATERINA
2008

Abstract

Conjunctive probabilistic reasoning has been studied at different ages to ascertain whether the conjunction fallacy is due to a task demand misinterpretation. Such a misinterpretation might occur because a task that requires a comparison between a superordinate class A and a subordinate class A&B is mistakenly interpreted as requiring a comparison between the two complementary subordinate classes of A (i.e., A&B and A¬B). Children (7- and 10-year-olds) and adults were required to make conjunctive probability judgments about problems for which explicit objective probabilities were provided. The total number of A items was kept constant and the frequencies of the A&B and of the A¬B items varied across problems. When the number of A&B items was smaller than the number of A¬B items, the frequency of congruent responses increased with age. When the number of A&B items was greater or equal to that of the A¬B items, the frequency of correct answers decreased.
2008
62 (3)
188
191
F. Chiesi; G. Gronchi; C. Primi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/471876
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