Db. Marlowe et S. Wetzler, CONTRIBUTIONS OF DISCRIMINANT-ANALYSIS TO DIFFERENTIAL-DIAGNOSIS BY SELF-REPORT, Journal of personality assessment, 62(2), 1994, pp. 320-331
We used discriminant function analyses of the Minnesota Multiphasic Pe
rsonality Inventory (MMPI; Hathaway & McKinley, 1983), Millon Clinical
Multiaxial Inventory (MCMI; Millon, 1983), MCMI-II (Millon, 1987), an
d Symptom Checklist Ninety-Revised (SCL-90-R; Derogatis, 1983) profile
s from a heterogenous group of 272 psychiatric inpatients to classify
patients as depressed, manic, and/or psychotic. Most functions generat
ed from these tests significantly discriminated depressed, manic (not
MCMI-II), and psychotic (not MCMI) subjects from psychiatric controls.
However, there was little improvement in diagnostic efficiency over t
he use of single scale elevations at specified cut scores. Functions d
erived from the MCMI for mania and the MCMI-II for psychosis show the
most promise but require replication. The difficulty of using group pr
ofile differences for the diagnosis of individual psychiatric patients
is discussed.