Psychometric differentiation of schizophrenic and schizoaffective psychoses

: The investigation aims at cognitive deficits of schizoaffective disorders, at the differentiation of the schizomanic and the schizodepressive subtypes, and at the cognitive differentiation of schizophrenic and schizoaffective disorders. Schizoaffective patients show no cognitive deficits in comparison to a nonclinical sample. There are no cognitive differences between the schizomanic and the schizodepressive subtype, but significant differences between schizophrenic and schizoaffective patients in test-scores concerning concentration and abstract reasoning. No differences in test-scores concerning verbal abilities are found.