Racial bias in the Minnesota Multiphasic Personality Inventory (MMPI) was investigated by comparing responses of Black and White compulsive heroin users on both empirically derived validity and clinical scales and intuitively constructed content scales. The results suggest that ethnicity is an influential subject background characteristic.…

This article describes an attempt to improve the Personal Orientation Inventory's specific trait prediction capability. The results indicated the potential for specific trait prediction was improved, although global prediction capability was not significantly changed. The resulting scales have been labeled the modified scale form of the…

The Tennessee Self Concept Scale (TSCS) was examined within a multimethod-multitrait framework over a three-year time period. Reliability and intercorrelation matrices are given based on 22 to 37 subjects that were tested and retested over the three-year interval. The TSCS was found to be reliable and to bear consistent and systematic…