The psychometric properties of a brief version of the Systemizing Quotient.

This study assessed factorial and construct validity of an 8-item version of the SQ on a sample of 627 participants. A single-factor latent variable model with a single correlated error term showed adequate fit in a confirmatory factor analysis. This model also demonstrated metric invariance across genders when controlling for an effect of age on item responses. Reliability was acceptable, α = .72. As further evidence for construct validity, SQ scores showed expected relationships with mental rotation performance, trait anxiety, childhood extroversion, childhood agreeableness, and gender. Overall, the results indicated good psychometric properties for the brief version of the SQ, suggesting that this scale could be useful when researchers require a systemizing measure that is minimally burdensome to complete. (PsycINFO Database Record (c) 2017 APA, all rights reserved)
Source: European Journal of Psychological Assessment - Category: Psychiatry & Psychology Source Type: research