Dimensionality and Measurement Invariance of the Sexually Aggressive Behaviors Scale across Male and Female Portuguese College Students

Abstract

There is growing interest on the topic of Sexual Violence (SV) perpetrated by community samples; movements, as the Me Too, have triggered such focus. Researching the validity of core SV measures is now fundamental. Accordingly, this study aimed to assess the structure of the Portuguese version of the Sexually Aggressive Behaviors Scale (SABS-PT) while testing for measurement invariance across gender. The SABS-PT was tested among a sample of 2540 Portuguese college students (48.5% males and 51.5% females). All participants identified as heterosexual, and their ages ranged between 18 and 39 years old. To assess the construct validity and test for measurement invariance across gender, single and multigroup Confirmatory Factor Analyses were performed. Results support the internal consistency and convergent/discriminant validity of the SABS-PT in relation to external variables. Overall, the findings suggest a good fit of data to the model. The partial scalar invariance of the measurement was obtained and further analyses on latent means differences indicated that men scored higher on SV compared to women. The SABS-PT may constitute a useful instrument for screening sexual initiation by aggressive means and associated risk factors and may play an important role as an outcome measure in programs preventing sexual violence.

Keywords

• construct validity
• measurement invariance
• latent means
• college students
• psychometrics
• reliability