Uncertainty in category-based induction: when do people integrate across categories?
J Exp Psychol Learn Mem Cogn
; 36(2): 263-76, 2010 Mar.
Article
em En
| MEDLINE
| ID: mdl-20192530
ABSTRACT
Two experiments investigated how people perform category-based induction for items that have uncertain categorization. Whereas normative considerations suggest that people should consider multiple relevant categories, much past research has argued that people focus on only the most likely category. A new method is introduced in which responses on individual trials can be classified as using single or multiple categories, an improvement on past methods that relied on null effects as evidence for single-category use. Experiment 1 found that people did use multiple categories when the most likely category gave an ambiguous induction but that few people did so when it gave an unambiguous induction. Experiment 2 suggested that the reluctance to use multiple categories arose from a cognitive shortcut, in which only one source of information is consulted. The experiments revealed significant individual differences, suggesting that use of multiple categories is one of a number of strategies that can be used rather than being the basis for most category-based induction.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Aprendizagem por Associação
/
Classificação
/
Formação de Conceito
/
Incerteza
/
Aprendizagem por Discriminação
Limite:
Humans
Idioma:
En
Revista:
J Exp Psychol Learn Mem Cogn
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Estados Unidos
País de publicação:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA