Japanese Validation of the CPI Social Maturity Index

The scales of the California Psychological Inventory (CPI) seek to measure “folk concepts,” variables originating in and shaped by interpersonal life and hence predictive of significant outcomes in everyday behavior. Scale configurations partake of this interactional relevance and are intended to heighten the inventory's diagnostic accuracy. One such profile pattern is that for social maturity, in which the dominance, responsibility, socialization, and flexibility scales are weighted positively and the good impression and communality scales negatively. In American and Italian samples this index gave “hit” rates of 90.2% and 82.3% in classifying delinquents and nondelinquents. For 113 non-delinquent and 36 delinquent Japanese males the social maturity means were 47.39 ( SD, 3.44) and 40.80 ( SD, 2.70); 88.6% of the 149 Ss were correctly classified by a cutting score of 42.