Introduction: Crime is an immoral act capable of tearing the well-being of society and the nation. Various factors have been accredited as potential factors for crime engagement for example natural inclination, nurture or a combination of these factors. Within the domain of natural inclination, lack of self-control is often viewed as the primary cause of crime and delinquency. However, there are no valid and reliable Malay language psychometric instruments to measure the level of self-control among Malaysians.
Objective: The aim of this study was to validate the Self Control Scale (SCS) for use among Malay speaking populations. Henceforth the Malay language version is identified as SCS-M.
Method: A cross-sectional study was carried out on 150 inmates incarcerated within two prisons in Peninsular Malaysia in June 2012. Forward and Backward translations of the original SCS were carried out followed by content and face validation processes. Exploratory factor analysis and Cronbach's Alpha reliability analysis were performed.
Result: Both content and face validation processes showed promising and good outcomes. Preliminary analysis for factor analysis supported factorability of the items. The factor loadings of SCS-M items did not correspond to the original six SCS dimensions. Since SCS is often administered as a unidimensional scale, a forced one factor analysis was performed and items with factor loadings exceeding 0.3 were retained. The result of internal consistency reliability of SCS-M demonstrated a good Cronbach's alpha value of 0.80.
Conclusion: The findings supported that SCS-M is a valid and reliable unidimensional scale to measure the level of self-control among Malay speaking populations. It is anticipated that the emergence of SCS-M is vital for self-control assessment, treatment, and rehabilitation purposes.