Age and IQ Effects on Army Enlisted Male CPI Profiles

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Abstract
This study investigated the age and IQ effects on California Psychological Inventory (CPI; Gough, 1975) profiles of 364 Army enlisted men, E-6 and below, under the age of 34 years. Two other instruments were administered: the Shipley Institute of Living Scale (Zachary, 1986) and a 78-item, researcher-designed background questionnaire addressed largely to socioeco- nomic background, family formation, and indicators of pathology. Age was significantly related to CPI measures of maturity, and IQ was significantly related to measures of achievement potential (e.g., leadership). Soldiers older than 23 years were found to be more adaptive than younger soldiers on 11 CPI scales. No significant age and IQ interactions were found on 26 CPI measures. Soldiers planning to reenlist scored higher (appeared more adaptive) on nine CPI measures than those planning not to reenlist. The mean CPI profile reflected interpersonal assets; on maturity measures, the mean CPI profile resembled the most common type of college men when previous CPI data (Burger & Cross, 1979) were inspected. Further investigations, including the age range 27-33 years, are encouraged because many soldiers older than 26 years may have been recruited before 1980 when there were problems with recruit quality (Moskos, 1986).

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