“…Process-Reactive Distinction. A second major categorization of schizophrenic patients is based primarily upon developmental and prognostic factors (Becker, 1956;Fine & Zimet, 1959;Garmezy & Rodnick, 1959;Kantor, Wallner, & Winder, 1953). Many laboratory experiments indicate such clarification reduces performance variability between experimental groups and yields signficant differences between the two groups of schizophrenics (e.g., Garmezy & Rodnick, 1959;Herron, 1962;Rodnick & Garmezy, 1957).…”