Diagnostic and Confirmation Strategies in Trait Hypothesis Testing

Post date: Aug 19, 2015 8:52:05 AM

The role of diagnostic and confirmation strategies in trait hypothesis testing is examined. The present studies integrate theoretical and empirical work on qualitative differences among traits with the hypothesis-testing literature. Ss tested trait hypotheses from 2 hierarchically restrictive trait dimensions: introversion-extraversion and honesty-dishonesty. In Study 1, Ss generated questions to test trait hypotheses, and diagnosticity was theoretically defined (e.g., questions associated with nonrestrictive ends of trait dimensions). In Study 2, Ss selected questions from an experimenter- provided list in which diagnosticity was empirically defined. In Study 3, Ss chose between 2

equally diagnostic questions. In each of the studies, Ss showed a primary preference for diagnostic information and a secondary preference for confirmatory information. Ss' preference for diagnostic information suggests that they prefer to ask the most informative questions. The explanation for the confirmation bias is less obvious, and possible reasons for this effect are discussed.