RT Conference_Proceedings T1 Wason's selection task: Content effect, instruction effect or both? A1 Valiña García, María Dolores A1 Seoane Pesqueira, Gloria A1 Ferraces Otero, María José A1 Martín Rajo, Montserrat K1 Psychology K1 Cognitive Psychology K1 Psychology of thinking K1 Psychology of reasoning K1 Wason's selection task K1 Psicología K1 Psicología Cognitiva K1 Psicología del pensamiento K1 Psicología del razonamiento K1 Razonamiento condicional K1 Tarea de selección de Wason AB This experiment explores the effect of the scenario’s availability, instruction (true/false vs. violation) and presentation order on performance in different versions of Wason’s selection task. Each subject was given three problems corresponding to the content of the three different rules (abstract content, thematic-permission and thematic-norm). The main analyses are presented in terms of matching and logical index (Pollard and Evans, 1987). The matching and logical index were influenced by the contents of the rules. Also there exist an interaction between instructions and content in the logical index. In the abstract version, as in the thematic-obligation, the logical indices are superior on the individuals that receive violation instructions, whilst that in the thematic-permission the best performance was registered with true/false instructions. The results are not consistent-with syntactic theories of human reasoning, and are discussed in terms of pragmatic and semantic theories of human reasoning. YR 2014 FD 2014-10-28 LK http://hdl.handle.net/10347/11729 UL http://hdl.handle.net/10347/11729 LA eng NO This paper was presented at the THIRD INTERNATIONAL CONFERENCE ON THINKING. British Psychological Society. Cognitive Psychology Section. University College London. August, 1996" DS Minerva RD 30 abr 2026