Correspondence among observer ratings of Rorschach, Big Five Model, and DSM-IV personality disorder constructs

Observer ratings were collected using instruments designed to measure the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; American Psychiatric Association, 1994) personality disorders (Personality Diagnostic Questionnaire-4+ [PDQ-4+]; Hyler, 1994), the Big Five model (B5M; Goldberg's [1999] International Personality Item Pool), and Rorschach-derived constructs. For the latter, we revised the Rorschach Rating Scale (Meyer, Bates, & Gacono, 1999) to lower its reading level and renamed it the Rorschach Construct Scale (RCS) to emphasize its reliance on rated constructs. The RCS consists of 6 factors. Joint factor analysis of RCS, PDQ-4+, and B5M items also resulted in 6 factors: Self-Centeredly Exploitative, Poor Ego Resiliency, Extraversion, Task Conscientiousness, Openness to Ideas, and Emotional and Expressive Constriction. The first 2 factors received high loadings from RCS, PDQ-4+, and B5M variables. The sixth factor received high loadings from just RCS variables.