Psychometric Properties of the Measure of Online Disinhibition (MOD) in Chilean Adolescents

Online disinhibition is a fundamental construct for understanding adolescent behaviour in digital environments. However, in Chile, there are no psychometric studies that support its measurement. In this regard, having valid and reliable tools to assess this phenomenon is key to advancing research on the dynamics of digital interaction and its possible implications for the well-being and online coexistence of adolescents. This study aimed to evaluate the psychometric properties of the Measure of Online Disinhibition (MOD) in a sample of Chilean adolescents. A cross-sectional study was conducted involving 4646 students from 41 secondary education institutions. The sample consisted of 50.2% males, 48.5% females, and 1.4% who identified with another gender category, with an average age of 15.79 years (SD = 1.33). The factorial structure was examined using confirmatory factor analysis, which confirmed the theoretical unidimensional solution. Factorial invariance was examined across gender, internet use, social media use, and age. Scalar invariance was supported for internet use, social media use, and age, while partial scalar invariance was established across gender. Convergent validity was supported by positive, moderate, and statistically significant correlations with the Global Assessment of Internet Trolling (GAIT). Finally, the scale demonstrated adequate internal consistency, supporting its use in the Chilean adolescent population.