Psychometric properties of the Malay Schizotypal Personality Questionnaire Malay Schizotypal Personality Questionnaire : Measurement invariance and latent mean comparisons in Malaysian Malaysian adults

摘要

Abstract Introduction The Schizotypal Personality Questionnaire (SPQ) is a widely used self‐report measurement instrument for the assessment of schizotypal personality traits. However, the factor structure of the SPQ has been a matter of some debate. As a contribution to this debate, we examined the factor structure of the SPQ in Malaysian adults. Method A total of 382 Malaysian adults completed a Malay translation of the SPQ. Confirmatory factory analysis was used to examine the fit of 3‐ and 4‐factor solutions for the higher‐order dimensionality of the SPQ. Ethnic invariance for the best‐fitting model was tested at the configural, metric, and scalar levels, and a multivariate analysis of variance was used to examine sex and ethnicity differences in domain scores. Results The 4‐factor model provided a better fit to the data than did the 3‐factor model. The 4‐factor model also demonstrated partial measurement invariance across ethnic groups. Latent mean comparisons for sex and ethnicity revealed a number of significant differences for both factors, but effect sizes were small. Discussion The 4‐factor structure of the SPQ received confirmatory support and can be used in Malay‐speaking populations.