One group of young adults and three groups of older adults (young-old,
old, old-old) were examined in immediate recall of random and organiz
able words, and immediate and delayed recall of prose passages. Result
s showed that all groups of older adults recalled less from the prose
passages and the word recall tasks than the younger adults, although t
here were no performance differences among the three older samples. As
well, all age groups showed a similar increase in recall of organizab
le words compared with random words, and all age groups showed paralle
l forgetting curves in prose recall. These results suggest that all ag
e groups utilized the organizational support to the same extent, and t
hat forgetting rate was not influenced by age. Regression analyses sho
wed that recall of random and organizable words, education, vocabulary
and age all contributed to prose recall performance. Most important,
the importance of markers of strategy use (word recall tasks) for pros
e recall decreased from early to late adulthood, whereas the importanc
e of a semantic memory marker (vocabulary) showed the opposite pattern
.