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Multicenter Study
, 90 (2), 185-96

Assessing Interpersonal Aspects of Schizoid Personality Disorder: Preliminary Validation Studies

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Multicenter Study

Assessing Interpersonal Aspects of Schizoid Personality Disorder: Preliminary Validation Studies

David S Kosson et al. J Pers Assess.

Abstract

In 2 studies, we examined the reliability and validity of an interpersonal measure of schizoid personality disorder (SZPD) based on nonverbal behaviors and interpersonal interactions occurring during interviews. A total of 556 male jail inmates in the United States participated in Study 1; 175 mentally disordered offenders in maximum security hospitals in the United Kingdom participated in Study 2. Across both samples, scores on the Interpersonal Measure of Schizoid Personality Disorder (IM-SZ) exhibited adequate reliability and patterns of correlations with other measures consistent with expectations. The scale displayed patterns of relatively specific correlations with interview and self-report measures of SZPD. In addition, the IM-SZ correlated in an expected manner with features of psychopathy and antisocial personality and with independent ratings of interpersonal behavior. We address implications for assessment of personality disorder.

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