Abstract
The Wisconsin Schizotypy Scales (WSS) are widely used for assessing schizotypy. Confirmatory factor analysis (CFA) indicates that a two-factor structure, positive and negative schizotypy, underlies these scales. Recently developed 15-item short forms of the WSS demonstrated good reliability and validity. This study examined the factor structure underlying the short-form WSS. Consistent with the original scales, CFA on three large samples (n=6137, 2171, and 2292, respectively) indicated that a two-factor model with positive and negative dimensions provided better fit than a generic schizotypy model for the short-form WSS. The short-form dimensions correlated highly with the original scale dimensions and displayed good stability across 10weeks. Preliminary construct validity was demonstrated through associations with interview and questionnaire measures of psychopathology, functioning, and personality comparable to those found with the original WSS. This is the first study examining the dimensional structure of the short WSS and the validity of these dimensions. The findings support the multidimensional nature of schizotypy and the appropriateness of dimensions derived from the short-form WSS.
Highlights
The Wisconsin Schizotypy Scales (WSS) are widely used for assessing schizotypy
These values were comparable across the three samples, and the short scales demonstrated good reliability and high correlations with their original scale counterparts
Phenomelogical, genetic, cognitive, and neurobiological evidence for putative overlap between schizotypy and schizophrenia supports the dimensional conceptualization of these constructs and suggests that the schizotypy continuum provides the unique opportunity to elucidate etiological risk and protective factors for schizophrenic psychopathology (Ettinger et al, 2014)
Summary
The Wisconsin Schizotypy Scales (WSS) are widely used for assessing schizotypy. Confirmatory factor analysis (CFA) indicates that a two-factor structure, positive and negative schizotypy, underlies these scales. Preliminary construct validity was demonstrated through associations with interview and questionnaire measures of psychopathology, functioning, and personality comparable to those found with the original WSS This is the first study examining the dimensional structure of the short WSS and the validity of these dimensions. Using confirmatory factor analysis (CFA) with 6137 young adults, Kwapil et al (2008) found evidence for a twofactor structure with positive and negative factors underlying the original WSS They reported that, as hypothesized, the schizotypy dimensions were differentially associated with symptoms and impairment. They did not examine the properties of the anhedonia scales
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
