Psychometric Properties of the Cross-Cultural Adaptation of the Multidimensional Self-Control Scale (MSCS) to Brazilian Portuguese

Self-control is positively associated with well-being and physical health and negatively linked to impulsivity and mental health problems, and appears to manifest itself in a multidimensional construct. This study aimed to assess the psychometric properties of the Multidimensional Self-Control Scale (MSCS) in a Brazilian sample. The sample comprised 770 participants (80% female) aged 18–61 years (M = 27, SD = 9). Participants completed the MSCS, along with the Self-Report Questionnaire (SRQ-20), UPPS-P Impulsive Behavior Scale, and Internet Addiction Test (IAT). The higher-order model, and scale reliability were examined using Confirmatory Factor Analysis, and McDonald's omega. Concorrent, convergent and divergent validity of MSCS scores were also assessed. The findings supported the higher-order structure in the Brazilian version, demonstrating high reliability ranging from .72 (Emotional Control) to .85 (Goals). As expected, MSCS scores were negatively correlated with common mental disorders, impulsive behaviors, and internet addiction tendencies. These results indicate that the MSCS is a psychometrically sound measure, contributing to cross-cultural research on the multidimensional nature of self-control.