DIPF database of publications

Detailansicht Treffer

DIPF database of publications

Show results

Brose, Annette; Schmiedek, Florian; Lövdén, Martin; Molenaar, Peter C.M.; Lindenberger, Ulman:

Adult age differences in co-variation of motivation and working memory performance
Contrasting between-person and within-person findings

In: Research in Human Development, 7 (2010) 1 , 61-78

URL of full text:



Document type
3a. Beiträge in begutachteten Zeitschriften; Aufsatz (keine besondere Kategorie)

Alter, Arbeitsgedächtnis, Deutschland, Empirische Untersuchung, Entwicklungspsychologie, Erwachsener, Faktorenanalyse, Kognitive Fähigkeit, Leistung, Messung, Motivation

Developmental theorists have proposed for a long time that the prevailing focus on stable individual differences has obstructed the discovery of short- term covariations between cognitive performance and contextual influences within individuals that may help to uncover mechanisms underlying long- term change. As an initial step to overcome this imbalance, we observed measures of motivation and working memory (WM) in 101 younger and 103 older adults across 100 occasions. Our main goals were to (1) investigate day-to-day relations between motivation and WM, (2) show that these relations differ between groups of younger and older adults, and (3) test whether the within-person and between-person structures linking motivational variables to WM are equivalent (i.e., the ergodicity assumption). The covariation between motivation and WM was generally positive in younger adults. In contrast, older adults showed reduced variability in motivation, increased variability across trials, and small reliability-adjusted correlations between motivation and WM. Within-person structures differed reliably across individuals, defying the ergodicity assumption. We discuss the implications of our findings for developmental theory and design, stressing the need to explore the effects of between-person differences in short-term covariations on long-term developmental change. (DIPF/Orig.)

Education and Human Development