The purpose of the present studies was to test the hypothesis that the psychometric characteristics of ability scales may be significantly distorted if one accounts for emotional factors during test taking. Specifically, the present studies evaluate the effects of anxiety and motivation on the item difficulties of the Rasch model. In Study 1, the…

Six methods of measuring factorial similarity were compared with regard to outcome based on two large data sets, one for an intelligence test and the other for a personality test. All indexes yielded comparable results. Comparing factors determined at random, all indexes yielded comparable results leading to a conclusion of dissimilarity.…

A modified multitrait-multimethod validation matrix was generated to evaluate the construct validity of the Revised Children's Manifest Anxiety Scale (RCMAS). Results were consistent with the use of RCMAS as a measure of chronic, manifest anxiety levels in children. Large correlations occurred with other trait measures of anxiety. (Author/PN)