Détail de la notice
Titre du Document
The process of inductive inference in groups : The use of positive and negative hypothesis and target testing in sequential rule-discovery tasks
Auteur(s)
CROTT H. W. ; GIESEL M. ; HOFFMANN C.
Résumé
Two experiments on the process of rule discovery in groups were conducted using a card deck and Wason number triple tasks. The positive effects of incentives on the proportion of correct hypotheses could not be explained by differential testing. The variables hypothesis vs. target testing' and small vs. broad range of rule' did not affect this proportion. There was a preponderance of positive tests, declining during trials. Negative tests occurred more often under the target test and broad rule range conditions. The positivity heuristic diminished in importance during trials, whereas the sufficiency, necessity, and Klayman and Ha heuristics increased. Groups produced fewer false and more correct results than individuals. According to the probabilistic model of opinion change, plausibility and faction size contributed to the group process differentially, depending on the task.
Editeur
American Psychological Association
Identifiant
ISSN : 0022-3514 CODEN : JPSPB2
Source
Journal of personality and social psychology A. 1998, vol. 75, n° 4, pp. 938-952 [bibl. : 36 ref.]
Langue
Anglais
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