The contribution of the PSY-5 scale to the MMPI-2

The PSY-5 (Personality Psychopathology Five) is a dimensional descriptive model of personality psychopathology assessed in adults with a set of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2). For the present study the authors aimed to illustrate the main contributions of the PSY-5 scale to the Spanish adaptation of the MMPI-2. The current samples included 535 clients from clinical practice settings and 1.080 participants who had no evidence of mental pathology. All of the PSY-5 dimensions indices were examined: Aggressiveness (AGGR), Psychoticism (PSYC), Negative Emotionality/Neuroticism (NEGE), Disconstraint (DISC) and Introversion/Low Positive Emotionality (INTR). Overall, findings suggest that both AGGR and DISC indices do not statistically discriminate clinical and non-clinical populations. All of the PSY-5 indices showed low sensitivity, specificity and predictive value through the analysis ROC (Receiver Operating Characteristic). Implications of the results are discussed.