Describes a specific class of indirectly conveyed meanings which are definitional, or partly definitional, that is, although conveyed by the utterances of sentences, they are not part of the meaning of those sentences. The study considers Strawson's topic-centered approach to presupposition, thematic predicates, and the pragmatics of…

Three studies investigated the effects of concrete versus abstract wording and negative versus positive premises on the difficulty subjects had in solving several kinds of reasoning tasks. Subjects for all three studies were college undergraduates who received booklets containing either hypothetical, disjunctive, or linear syllogisms. Each booklet…

A model grounded in recent ordinary language philosophy is proposed which postulates that subjects employ counterfactual and contrastive criteria of causal ascription, as unified in the notion of an abnormal condition. Two experiments satisfy the three criteria specified for an adequate test of the abnormal conditions focus model. (Author/LMO)

Argues that the syntactic and mental model accounts of the suppression effect in deductive reasoning are inadequate. Proposes a relative salience model. Describes a test of predictions from this model in a suppression model, which obtained evidence of convergent validity for the salience construct. Results could not be reconciled with either the…

The focus of the study reported here was to investigate people's comprehension ability as a function of the number and type of negations embedded within sentences similar to those which might appear as premises in syllogisms. The subjects were one group of 11 Hispanic and four groups of Anglo students, with 15 in each Anglo group. Thirty-two…