MMPI-A Scale-Level Factor Structure: Replication in a Clinical Sample

Abstract

The adolescent form of the Minnesota Multiphasic Personality Inventory (MMPI-A) Structural Summary was developed from the results of a scale-level factor analysis conducted by Archer, Belevich, and Elkins based on the MMPI-A normative sample. The present study examined the scale-level factor structure of the MMPI-A in a clinical sample of 358 adolescents receiving outpatient or inpatient psychiatric services. A Principal Factor Analysis was performed using the raw score intercorrelation matrix from the 69 scales and subscales of the MMPI-A. The procedure yielded nine factors that accounted for 75.6% of the total variance in scale and subscale raw scores. Results from this clinical sample indicated that seven of the eight dimensions that appear on the MMPI-A Structural Summary were replicated in terms of producing highly similar factor structure correlation coefficients with those reported by Archer, Belevich, et al. for a normal sample. The present findings support the use of the MMPI-A Structural Summary for the assessment of adolescents in clinical settings.

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