Análisis de validez y fiabilidad de la versión portuguesa del cuestionario de estilo de vida saludable - EVS IV

Introduction and Objective. The primary objective of this study was to validate the Healthy Lifestyle Questionnaire – EVS IV using Exploratory Structural Equation Modeling (ESEM). Methodology. A total of 1,668 Portuguese participants (aged 18 to 70 years; M = 39.71, SD = 15.68) took part in the study, comprising 856 men (51.3%) and 812 women (48.7%). Results. The findings confirmed the adequacy of the factorial structure of the Healthy Lifestyle Questionnaire – EVS IV (8 factors / 29 items), demonstrating strong psychometric properties and good fit indices: χ² = 253.499, df = 189, p = .001; χ²/df = 1.34; CFI = .97; TLI = .93; RMSEA = .01 (95% CI: .01, .02); SRMR = .02. The instrument evaluates eight distinct dimensions: balanced diet, adherence to meal schedules, tobacco use, alcohol consumption, use of other drugs, rest habits, physical activity habits, and sedentary behavior. Conclusions. The Portuguese version of the Healthy Lifestyle Questionnaire – EVS IV shows robust psychometric validity and can be confidently applied to assess healthy lifestyle behaviors.