Some correlational differences arose across countries and are discussed. Internalizing symptomatology, rumination and low happiness were related mainly to low emotional stability across countries, while low agreeableness and low conscientiousness were related chiefly to externalizing symptomology (i.e., antisocial behavior and drug outcomes).
Multigroup ESEM and ESEM-within-CFA generally supported the measurement invariance of the questionnaire across groups. Of the tested models, an Exploratory Structural Equation Model (ESEM) fit the data best. College students ( n = 2158) from the USA ( n = 1117 ), Argentina ( n = 353 ) and Spain ( n = 688 ) completed an online survey. Evidence of criterion-related validity was examined via associations (i.e., correlations) between the BFPTSQ domains and a wide variety of mental health outcomes. The present study examined the measurement invariance of the Big Five Personality Trait Short Questionnaire (BFPTSQ) across language (Spanish and English), Spanish-speaking country of origin (Argentina and Spain) and gender groups (female and male).