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Research Article

Strategies for Dealing with Complex Deductive Problems: Combining and Dividing

Authors:

Kristien Dieussaert ,

Laboratory of Experimental Psychology, Tiensestraat 102, 3000 Leuven, BE
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Walter Schaeken,

University of Leuven, BE
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Walter Schroyens,

University of Leuven, BE
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Géry d’Ydewalle

University of Leuven, BE
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Abstract

The present paper addresses the basis for suppression effects observed in conditional inference. Previous research has shown that when an additional premise is included, the invalid inferences “denial of the antecedent” and “affirmation of the consequent” are suppressed (Rumain, Connell, & Braine, 1983). Byrne (1989) has shown that a similar suppression effect can occur in valid inferences (modus Ponens and modus Tollens). We briefly present the results of a series of experiments that show that strategic factors related to task and presentation format may affect the presence of suppression effects. We also present an introspective experiment (thinking aloud procedure) that clarifies the usage of two different strategies, the integration and the amendment strategy. The results are discussed with respect to the mental logic and mental model theories of reasoning.

How to Cite: Dieussaert, K., Schaeken, W., Schroyens, W. and d’Ydewalle, G., 1999. Strategies for Dealing with Complex Deductive Problems: Combining and Dividing. Psychologica Belgica, 39(4), pp.215–234. DOI: http://doi.org/10.5334/pb.951
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Published on 01 Jan 1999.
Peer Reviewed

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