Validation of the Multidimensional Schizotypy Scale-Brief in Two Large Samples

Georgina M. Gross, Thomas R. Kwapil, Chris J. Burgin, Michael L. Raulin, Paul J. Silvia, Kathryn C. Kemp, Neus Barrantes-Vidal

Research output: Contribution to journalArticlepeer-review

Abstract

This study reports on an initial examination of the construct validity of the Multidimensional Schizotypy Scale-Brief (MSS-B) and the first investigation of its psychometric properties outside of its derivation samples. The MSS-B contains 38 items that assess positive, negative, and disorganized schizotypy and has comparable content coverage and psychometric properties as the original 77-item Multidimensional Schizotypy Scale. Two large samples (n = 1430 and 1289) completed the MSS-B, as well as measures of schizotypal personality traits and the Five-Factor Model of Personality. MSS-B scores were computed from the full-length scale in sample 1, whereas participants in sample 2 were administered the MSS-B. The psychometric properties and intercorrelations of the MSS-B subscales were consistent with findings from the original derivation samples, with no shrinkage in reliability. In terms of relations with schizotypal traits, the MSS-B positive schizotypy dimension had its strongest association with cognitive-perceptual schizotypal traits, MSS-B negative schizotypy had its strongest association with interpersonal schizotypal traits, and MSS-B disorganized schizotypy had its strongest association with disorganized schizotypal traits. The schizotypy dimensions were characterized by hypothesized patterns of distinct associations with the Five-Factor Model. The present findings are consistent with results from the full-scale MSS.

Original languageEnglish (US)
Pages (from-to)669-677
Number of pages9
JournalJournal of Psychopathology and Behavioral Assessment
Volume40
Issue number4
DOIs
StatePublished - Dec 1 2018

Keywords

  • Personality
  • Schizophrenia-spectrum
  • Schizotypal
  • Schizotypy

ASJC Scopus subject areas

  • Clinical Psychology

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