The problem of whether memory impairment with age is due primarily to storage defects or to retrieval difficulties was considered further. It was argued that, if one accepts a “partial information” interpretation of the recognition process, then the observation, that under certain conditions recognition scores deteriorate less rapidly with age than recall scores, cannot be taken as evidence for a loss in retrieval ability with increasing age. Such results are completely consistent with the notion of an age-related storage defect. Nevertheless, no unequivocal evidence has yet been presented for either position.
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