Assessing interpersonal aspects of schizoid personality disorder: preliminary validation studies.
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.
Kosson
David S
DS
Department of Psychology, Rosalind Franklin University of Medicine and Science, North Chicago, IL 60064, USA. david.kosson@rosalindfranklin.edu
Blackburn
Ronald
R
Byrnes
Katherine A
KA
Park
Sohee
S
Logan
Caroline
C
Donnelly
John P
JP
D000293:Adolescent; D000328:Adult; D004739:England; D006801:Humans; D007398:Interpersonal Relations; D007406:Interview, Psychological; D008297:Male; D015146:Midwestern United States; D015588:Observer Variation; D011329:Prisoners / Q000523:psychology; D015203:Reproducibility of Results; D012557:Schizoid Personality Disorder / Q000175:diagnosis* / Q000523:psychology; D012606:Scotland