Age and MMPI indices of schizophrenia

Assessed the generalizability of empirically derived MMPI criteria for the diagnosis of schizophrenia with an older sample of hospitalized patients (N = 65). The criterion diagnosis was established through the use of a standarized structured interview and a diagnostic system for schizophrenia based on the use of discriminant function analysis. Results were quite disappointing because only 22% of the sample obtained an MMPI profile that fit the above criteria.