SIMPLE REACTION TIME IN SCHIZOPHRENIC, RETARDED, AND NORMAL CHILDREN UNDER REGULAR AND IRREGULAR PREPARATORY INTERVAL CONDITIONS.

ATTEMPTED TO REPLICATE, WITH MINOR MODIFICATIONS, E. H. RODNICK AND D. SHAKOW'S (SEE 15:4) STUDY ON R.T. SS WERE 20 SCHIZOPHRENIC, 20 RETARDED, AND 20 NORMAL CHILDREN. THE PROCEDURE CONSISTED OF REGULAR AND IRREGULAR PREPARATORY INTERVAL CONDITIONS. SCHIZOPHRENICS WERE SLOWER AND MORE VARIABLE THAN THE CONTROLS. WHEN APPLYING THE SET-INDEX FORMULAS, A 10% OVERLAP BETWEEN NORMALS AND SCHIZOPHRENICS WAS ALSO EVIDENT. NO CLEAR SEPARATION COULD BE OBTAINED BETWEEN SCHIZOPHRENIC AND RETARDED CHILDREN. (FRENCH ABSTRACT) (PsycINFO Database Record (c) 2010 APA, all rights reserved)