A comparison was made of the ability of 8 process-reactive measures to predict symptomatic improvement over 3- and 6-mo. time intervals in DSM-III diagnosed schizophrenics. The sample was predominantly process, chronic patients showing little improvement. This in turn appeared to be a function of the DSM-III definition of schizophrenia. The successful predictors were scores on the Maine scales, Social Attainment Scale, and the Prognostic Scale, though with different time intervals, outcome measures, or sexes. The process-reactive conception now appears more applicable to a schizophrenic spectrum than to DSM-III diagnosed schizophrenics.

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