Abstract
Undergraduates were used in an examination of the relationship between external feedback and self-reinforcement (SR) in a pseudosubliminal perception task in which accuracy of the evaluated verbal response was not permitted to vary. It was found that while overall percentage of reinforcements influenced SR rate, contingent reinforcement for SR generally contributed more heavily than percentage reinforcement for non-SR. These effects were found to vary with base-rate level of SR. At very low base rates of SR, reinforcement of non-SR had the apparently paradoxical effect of raising SR level, and raising it more effectively than reinforcement of SR directly (where so few opportunities for reinforcing SR were available). At high base-rate levels, differential reinforcement of non-SR succeeded in lowering final level of SR. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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