Adaptation of Columbia Mental Maturity Scale in Pakistan

This article describes the process of adaptation of the Columbia Mental Maturity Scale (CMMS). It reports the psychometric evaluation of the scale undertaken by means of item-analysis, and determination of cut-points for various levels within the scale for subjects of various age brackets and grades. This study aims at exploring the validity of the test for school children in Pakistan. The subjects consisted of 270 children of nursery through grade five, aged 3 to 10 years in urban school. Appropriate levels of the scale were administered individually to the subjects. The protocols of the subjects were scored and tabulated on a percentile scale. The scores increase systematically with increase in age and grade level. The reliability and the validity indices as obtained in this study characterize the Pakistani adapted version of the Columbia Mental Maturity Scale (CMMS-P) as a useful tool for children in Pakistan, specially in the school setting.