Comparing reversal and nonreversal shifts in concept formation with partial reinforcement controlled.

Abstract

Previous experiments have attempted to test the superiority of a reversal shift over a nonreversal shift in the sorting of cards and blocks when partial reinforcement of the responses learned during solution of a first concept was not present during reinforcement of the second concept. This study eliminates partial reinforcement and indicates the superiority of reversal over nonreversal groups. Data interpreted in terms of a mediational formulation. (PsycINFO Database Record (c) 2006 APA, all rights reserved)