Structural Validity Evidence for the Oxford Utilitarianism Scale Across 15 Languages

Background The Psychological Science Accelerator (PSA) recently completed a large-scale moral psychology study using translated versions of the Oxford Utilitarianism Scale (OUS). However, the translated versions have no validity evidence. Objective The study investigated the structural validity evidence of the OUS across 15 translated versions and produced version-specific validity reports. Methods We analyzed OUS data from the PSA, which was collected internationally on a centralized online questionnaire. We also collected qualitative feedback from experts for each translated version. Results For each version, we produced version-specific psychometric reports which include the following: a) Descriptive item and demographics analyses; b) Factor structure evidence using confirmatory factor analyses; c) Measurement invariance testing across languages using multiple-group confirmatory factor analyses and alignment optimization; and d) Reliability analyses using coefficients alpha and omega.