The usefulness of the Minnesota Multiphasic Personality Inventory-Adolescent (MMPI-A) (J. was examined for 162 delinquent boys in a state training school. Their base rates, patterns, and configurations on all the MMPI-A scales and subscales were determined and compared with those of the 805 nondeliquent male adolescents in the MMPI-A standardization sample and with the original MMPI patterns of 7,783 delinquents identified in a literature review. The most prominent clinical scales were 4, 6, and 9, and 49/94 was the most frequent 2-point code.The study confirmed 14 of 18 hypotheses for mean differences on the 38 MMPI-A validity, clinical, supplementary, and content scales, and also found significant mean differences on 33 of the other 51 MMPI-A scales and subscalcs, 13 of which were large enough to be clinically meaningful. Most of the MMPI-A patterns and configurations were consistent with the literature on male juvenile delinquents.The original Minnesota Multiphasic Personality Inventory (MMPI) (Hathaway & McKinley, 1943) has been used in the clinical assessment of juvenile delinquents for over 50 years.Comparing 101 delinquent with 85 nondelinquent girls. Capwell (1945) reported that the delinquents had significantly higher scores on

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