Direct versus indirect tests of memory: directed forgetting meets the generation effect.
Subjects read 20 words and generated 20 others from definitions during a 40-item study phase. Production of each word was followed by an instruction to remember or to forget that word. In free recall, a direct test of memory, words that had been generated were recalled much better than words that had been read. The remember-forget instructional manipulation affected read words but not generated words. In speeded word reading, an indirect test of memory, all studied words showed priming, but read words showed more priming than generated words. Here, the effect of remember versus forget instructions appeared only for generated words. These dissociations of a direct and an indirect test indicate that two powerful encoding manipulations affect separable processes to which these tests are differentially sensitive.
MacLeod
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CM
Division of Life Sciences, University of Toronto, Scarborough, ON, Canada. macleod@scar.utoronto.ca
Daniels
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KA
D000328:Adult; D000704:Analysis of Variance; D003463:Cues; D005260:Female; D006801:Humans; D008297:Male; D008568:Memory; D011939:Mental Recall; D011932:Reading; D012033:Refractory Period, Psychological; D014936:Word Association Tests