MMPIs of Hispanic, black, and white DSM-III schizophrenics.

The purpose of this study was to compare the MMPI performance of Hispanic, black, and white mental patients who were matched on the psychiatric diagnosis of schizophrenia. It was hypothesized that ethnic patient groups from a maximum security hospital would not differ significantly on any of the 13 MMPI scales as a result of being equated on psychiatric diagnosis. A secondary purpose was to examine the most frequently occurring two-point high-point codes elicited by each of the ethnic groups. Significant multivariate differences were indicated among the MMPI scales and across ethnic groups. Significant univariate differences were found among the three ethnic groups on six of the 13 MMPI scales. The most frequently occurring two-point high-point code for Hispanic and white groups was the "8-2/2-8" code, while for the black group it was the "6-8/8-6" code. Results were discussed with regard to ethnicity, psychiatric diagnosis, and MMPI performance of ethnic/racial groups.