Memory and transformations in concept learning.

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Abstract
Investigated recognition-memory differences between concept rules of different difficulties. The difficulty of the different concepts used was ordered in terms of trials to criterion. Memory for previously presented stimuli within a problem was determined by a recognition-memory task for each stimulus. Exp. I and II showed that memory error was greater for concept rules of greater criterion difficulty. By reducing memory load for previously presented stimuli in Exp. III, the trials-to-criterion difference between 2 of the concept rules was attenuated. Among the interpretations of the results which were discussed was the notion that differential memory for previously presented stimuli was the limiting factor contributing to trials-to-criterion differences between the rules studied in the high-memory-load condition. This interpretation applied primarily to those circumstances in which Ss both know and understand the rule used. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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