Minnesota Multiphasic Personality Inventory - Adolescent

Purpose: Designed for use with adolescents to assess a number of the major patterns of personality and emotional disorders.

Population: Ages 14-18.

Scores: Sixty-eight scale scores.

Time: Administration time not reported.

Authors: James N. Butcher, Carolyn L. Williams, John R. Graham, Beverly Kaemmer, Robert P. Archer (manual); Auke Tellegen (manual), Yossef S. Ben-Porath (manual), S.R. Hathaway (test booklet), and J.C. McKinley (test booklet).

Publisher: University of Minnesota Press.

Description: The MMPI-A is largely a parallel inventory to the MMPI-2, designed to assess psychopathology in adolescents.

Scores: The MMPI-A contains 68 scales: 16 Basic Scales (6 Validity scales and 10 Clinical Scales), 28 Harris-Lingoes Subscales, 3 Si Subscales, 15 Adolescent Content Scales, and 6 Supplementary Scales.

Reliability: The manual contains 40 alpha coefficients for assessing internal consistencies. Of the 40, 17 (43%) range from .75 to .91, 18 (45%) range from .55 to .68; and the remaining 5 (13%) range form .35 to .53. Intercorrelations among the clinical scales range from .00 to .85 in the normative sample.

Validity: To the extent that the MMPI-A retains the essence of the MMPI, the basic clinical scales come complete with documented empirical validity. The validity of the 15 new content scales is purported to obtain external validity coefficients equal to that of its parent measure.

Norms: The normative sample is diverse and is probably representative of the adolescent population of the United States. The clinical sample is less representative than the normative sample: All are from settings in Minneapolis, and the majority are from drug and alcohol treatment.

Suggested Uses: This inventory is useful for assessing adolescent psychopathology.