Abstract

A programme of research is reported in which the effects of different contents in two deductive reasoning paradigms were investigated. A review of the literature showed that the two main determinants of performance are the logical structure of the task, and non-logical performance variables such as 'matching bias’. Matching is a prime determinant of behaviour in abstract tasks, e.g. Wason's Selection task. This is shown by systematically negating logical rule components. However, a large literature indicates that logical performance is facilitated by using thematic materials.

Document Type

Thesis

Publication Date

1979

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