COMPARABILITY AND VALIDITY OF COMPUTERIZED ADAPTIVE TESTING WITH THE MMPI-2

The comparability and validity of a computerized adaptive (CA) Minneso ta Multiphasic Personality Inventory-2 (MMPI-2) were assessed in a sam ple of 571 undergraduate college students. The CA MMPI-2 administered adaptively Scales L, F, the 10 clinical scales, and the 15 content sca les, utilizing the countdown method (Butcher, Keller, & Bacon, 1985). All subjects completed the MMPI-2 twice, with three experimental condi tions: booklet test-retest, booklet-CA, and conventional computerized (CC)-CA. Profiles across administration modalities show a high degree of similarity, providing evidence for the comparability of the three f orms. Correlations between MMPI-2 scales and other psychometric measur es (Beck Depression Inventory; Symptom Checklist-Revised; State-Trait Anxiety and Anger Scales; and the Anger Expression Scale) support the validity of the CA MMPI-2. Substantial item savings may be realized wi th the implementation of the countdown procedure.