MCMI-III diagnostic validity: bad test or bad validity study.
Operating characteristics describe the validity of tests that attempt to dichotomously predict a diagnosis. These statistics are not fully published in the Millon Clinical Multiaxial Inventory-III Manual (MCMI-III manual; Millon, 1994). When calculated from available statistics, the positive predictive powers of the MCMI-III scales are poor both in absolute terms and relative to the MCMI-II (Millon, 1987). There were a number of problems, however, with the initial MCMI-III validity study both inherently and in execution. Although it is doubtful that the MCMI-III is weaker than the MCMI-II, a new validity study is needed.
Retzlaff
P
P
Department of Psychology, University of Northern Colorado, Greeley 80639, USA.
D003937:Diagnosis, Differential; D006801:Humans; D001523:Mental Disorders / Q000175:diagnosis / Q000523:psychology; D010554:Personality Disorders / Q000175:diagnosis* / Q000523:psychology; D010555:Personality Inventory / Q000706:statistics & numerical data*; D011594:Psychometrics; D015203:Reproducibility of Results