Recall in normals and subnormals of like mental age.

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Abstract
Normal children and young adult imbeciles were matched for mental age and were given sets of 6 pairs of words to learn by association. The words were recorded on tape, and presented to subgroups at a sound intensity of 90 db. or 55 db. Each subgroup was further subdivided--½ the Ss being given 10 and ½ given 20 repetitions. 1 minute, 2 days, and 1 month later they heard the stimulus word of each pair and were asked to give the appropriate response word. It was shown that there was no difference in learning or memory scores between normals and imbeciles. Frequency of presentation affected immediate recall scores of both groups, with intensity level contributing to a lesser degree. Memory over longer time intervals was determined by the amount initially learned, rather than by the conditions under which such learning had occurred. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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