The Factor Structure of the Schizotypal Personality Questionnaire in Undergraduate and Community Samples

The prevailing theoretical model of the Schizotypal Personality Questionnaire (SPQ) is a three-factor model based on subscale-level analyses. However, recent item-level factor analyses of the SPQ suggest a four- or five-factor model. To examine the factor structure of the SPQ and how this structure...

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Bibliographic Details
Published in:Journal of personality disorders 2017-02, Vol.31 (1), p.1-15
Main Authors: Zhang, Lisa C, Brenner, Colleen A
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Aged, 80 and over
Beliefs
Community Relations
Discriminant analysis
Evidence
Factor Analysis
Factor Analysis, Statistical
Factor Structure
Female
Females
Gender Differences
Humans
Male
Males
Middle Aged
Personality
Personality - physiology
Personality disorders
Personality Inventory - standards
Personality Problems
Psychometrics - instrumentation
Psychosis
Questionnaires
Resistance (Psychology)
Schizophrenia
Schizotypal Personality Disorder - diagnosis
Students - statistics & numerical data
Undergraduate Students
Universities
Young Adult
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Summary:The prevailing theoretical model of the Schizotypal Personality Questionnaire (SPQ) is a three-factor model based on subscale-level analyses. However, recent item-level factor analyses of the SPQ suggest a four- or five-factor model. To examine the factor structure of the SPQ and how this structure may differ between undergraduate and community samples, the authors conducted exploratory and confirmatory item-level factor analyses of this measure on undergraduate (N = 1,850) and community participants (N = 1,464). A clear three-factor solution was found in the community sample, whereas a somewhat equivocal four-factor solution was found in the undergraduate sample. Both structures displayed gender invariance. This is the first study to address the issues of undergraduate sample generalizability and gender invariance in an item-level exploratory factor analysis of the SPQ. Given the disparate findings in the samples, this study indicates the importance of using both community and undergraduate samples when examining the factor structure of the SPQ.
ISSN:0885-579X
1943-2763
DOI:10.1521/pedi_2016_30_233