title: The structure of DSM-III-R schizotypal personality disorder diagnosed by direct interviews.
abstract: Confirmatory factor analysis techniques were applied to test how competing models (unifactorial, bifactorial, and trifactorial) could be used to explain the structure of schizotypal disorder as defined in DSM-III-R and DSM-IV. Subjects were 538 nonpsychotic psychiatric outpatients and a replication sample of 225 nonpsychiatric patients and control subjects, interviewed by clinicians using the Structured Interview for DSM-III-R Personality Disorders. The study found that the best-fit solution encompassed three factors: cognitive-perceptual, interpersonal, and oddness. Future studies may benefit from considering schizotypal personality disorder as composed of three factors that may indicate the existence of three underlying (dys)functional systems.
authors.affiliation: Dept. of Neuropsychiatric Sciences, University of Milano School of Medicine, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Battaglia
authors.forename: M C
authors.initials: MC
authors.lastname: Cavallini
authors.forename: F
authors.initials: F
authors.lastname: Macciardi
authors.forename: L
authors.initials: L
authors.lastname: Bellodi
mesh_terms: D000328:Adult; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007406:Interview, Psychological; D008297:Male; D008875:Middle Aged; D015233:Models, Statistical; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data*; D011594:Psychometrics; D012016:Reference Values; D012569:Schizotypal Personality Disorder / Q000145:classification / Q000175:diagnosis* / Q000523:psychology