Psychometric properties of the Internet Addiction Test in a sample of Malaysian undergraduate students

This study examined the psychometric properties of a bilingual version of the Internet Addicion Test (IA) (Malay and English) in a sample of undergraduate students. A total of 104 students from Universiti Teknologi Malaysia (UTM) participated in this study. Result of Rasch Model analysis on the items of IAT showed that the 6-point rating scale was the optimal and the unidimensional structure of IAT was confirmed. The evidences provided by Rasch Model analysis supported that IAT was a good and reliable instrument to examine psychopathological internet use (PIU). The undelying construct of IAT was examined by EFA, which found a six-factor model as the best fit model (tolerance, time management problems & neglect of duty, neglect of social life, problematic use & reality substitute, withdraw & emotional conflict, intentionally concealing behavior, and lack of control). Time spent online was found to be significantly correlated to each factor subscales of IAT, but weakly. Factors of lack of control and problematic use & reality substitute were two salient underlying structures of IAT in this study. A bigger sample size was suggested to confirm the underlying construct by using CFA in the future study.