Racial bias in prediction with the MMPI for a juvenile delinquent population

Relationships between MMPI scales and criteria were evaluated to determine if the MMPI is racially biased with a juvenile delinquent population. The MMPI was administered to 333 white and 107 black male juvenile delinquents, and criterion data were collected. The regression equations developed for Blacks and whites resulted in similar accuracies. However, the weights of the regression equations tended to differ for the two races. How they differed depended on the criterion predicted by the equations. Consequently, it was impossible to state unconditionally that the use of the MMPI with Black delinquents will have an adverse impact. In fact, one interpretation of the results suggested that the MMPI may not be racially biased for predictions with juvenile delinquents because the amount of constant error in prediction for a racial group decreased toward zero as the apparent objectivity of the criteria increased.