Reader and text variables as determinants of discourse memory in adulthood.

Young students, old students, and old nonstudents read and recalled short texts that were in either narrative or expository form. In addition, a set of six verbal ability measures thought to be related to discourse memory was obtained for all of the participants. Older subjects recalled less from the texts than younger subjects, and neither type of text nor student status modified the magnitude of the age differences. The set of verbal ability measures was adequately described by two principal components, one consisting of simple, speed-related skills, and the other consisting of more complex skills. Each set of variables predicted a proportion of discourse memory variance, and accounted for some of the variance that would otherwise be attributed to age. The results suggest that age differences in some basic cognitive skills related to reading effectiveness might underlie age differences in memory for discourse.

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