Abstract
The experiments reported examine the effects of two highly related variables, word frequency and age of acquisition, on short-term memory span. Short-term memory span and speech rate were measured for sets of words which independently manipulated frequency and age of acquisition. It was found that frequency had a considerable effect on short-term memory span, which was not mediated by speech rate differences—although frequency did affect speech rate in one experiment. For age of acquisition, this situation was reversed; there was a small but significant effect of age of acquisition on speech rate, but no effect on memory span. This occurred despite results confirming that the stimuli used in the experiments produce an effect of age of acquisition on word naming. The results are discussed in terms of a two-component view of performance on short-term memory tasks.
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This research was supported by Grant R000 23 2576 from the Economic and Social Research Council of the United Kingdom to the second and fifth authors.
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Roodenrys, S., Hulme, C., Alban, J. et al. Effects of word frequency and age of acquisition on short-term memory span. Memory & Cognition 22, 695–701 (1994). https://doi.org/10.3758/BF03209254
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DOI: https://doi.org/10.3758/BF03209254