The construct validity of the Australian version of the Multidimensional School Anger Inventory-Revised (MSAI-R) was examined using exploratory factor analysis (EFA), Rasch analysis, and confirmatory factor analysis (CFA) on a sample of 1,400 Australian students enrolled in Years 8 through 12. The EFA revealed a strong replication of the MSAI-R's internal consistency and structure with the original four MSAI-R factors identified: Anger Experience, Hostility, Destructive Expression, and Positive Coping. However, the Rasch analysis revealed that some additional items could be added to the destructive anger expression and positive coping subscales to enhance their reliability. A CFA was also conducted to compare the four-factor and a one-factor model. The results indicated a good model fit for the four-factor solution apart from one index. It is concluded that the results lend further support to the MSAI-R's construct validity and support its use as a general survey and evaluation research instrument. (Contains 8 tables and 4 figures.)