basic personality style scales of the MiMon Clinical Multiaxial Inventory ... All 5s completed tbe Millon Clinical Multiaxial Inventory (MCMI) (Millon, 1977).
VALIDITY OF THE NARCISSISTIC PERSONALITY INVENTORY (NPI) IN A PSYCHIATRIC SAMPLE AURELIO PRIFITERA Loyola University of Chicago JOSEPH J. RYAN* North Chicago Veterans Administration Medical Center
Investigated the validity of the Narcissistic Personality Inventory (NPI) in a psychiatric sample. Fifty psychiatric patients were given the NPI as part of a routine psychological evaluation. Correlations between the NPI and the basic personality style scales of the MiMon Clinical Multiaxial Inventory (MCMI) were obtained; the largest correlation was between the NPI and the narcissism scale of the MCMI {r = .66,/? and evidence of construct validity. Journal of Personality Assessment. 45. 159-162. N . . & HALL. C . S . (1982). Personal communication. April.
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UTILITY OF THE MMPI-168 WITH ADOLESCENTS LOUISE MACBETH AND BARBARA CADOW
i ntversity of Southern Caltjornia Medical School
Investigated the utility of the MMPI-168 with an adolescent psychiatric sample of I 10 5s by comparing published conversion values for adults to population-specific derived equations developed through both regression and substitution methods. Data analyses for the three equations compared 168 T scores to long-form scores via correlation coefficients and /-tests of mean scale score differences. The ability of the 168 to make accurate decisions with regard to profile validity, degree of elevation, high points, code typing, and diagnosis also was examined. Results that used the published equations were similar to those of previous 168 studies uith adults. Although population-specific conversion equations produced means and standard deviations that more closely approximated the full MMPI, they failed to produce higher T score correlations or better prediction of profile validity and code-types than the published values. Appropriate uses and limitations of the I6K with adolescents are discussed.
Development and use of time-saving short forms of the MMPI have increased dramatically in the last decade. The MMPI-168 recently has emerged as a particularly promising version for a variety of adult populations, especially with regard to external validity (e.g., Overall, Butcher, & Hunter, 1975) and practicality of administration and scoring. While the availability of norms and a profile interpretation system for adolescents (Marks, Seeman, & Haller, 1974) have encouraged use of the MMPI with this age group, only a handful of studies have investigated the usefulness of short forms with adolescent populations. Armentrout and Rouzer (1970) examined the utility of the Mini-Mult with delinquents, and Newmark and Glenn (1974) compared the FAM to the standard MMPI with a sample of adolescent psychiatric patients. Two studies by Newmark and Thibodcau (1979) produced promising results with regard to the empirical validity of both the MMPI-168 and FAM with hospitalized adolescents. The purpose of the present study was: (1) to investigate the ability of existing 168 conversion values for adults to predict features of the standard MMPI m an adolescent
