The prediction of outcome from anhedonia and process-reactive scales.
Earlier researchers have suggested that the ability of process-reactive measures to predict future adjustment may result from their relationships to the anhedonia dimension. In the present study the abilities of process-reactive and anhedonia measures, independent of one another, to predict rehospitalization data were compared. After anhedonia scores had been partialed out, schizophrenics' process-reactive scores were correlated modestly with length of the patients' next hospitalization and reclassification as nonschizophrenic. No such significant correlations appeared between anhedonia and adjustment measures after process-reactive scores had been partialed out. Among nonschizophrenics, a sizeable correlation between anhedonia and the probability of later diagnosis of schizophrenia appeared, which suggests that anhedonia may be a useful prodromal marker for schizophrenia.
D000328:Adult; D000342:Affective Symptoms / Q000175:diagnosis / Q000523:psychology; D004644:Emotions; D006760:Hospitalization; D006801:Humans; D010555:Personality Inventory; D011379:Prognosis; D012559:Schizophrenia / Q000145:classification / Q000175:diagnosis*; D012565:Schizophrenic Psychology; D014888:Wechsler Scales