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Centre for Policy on Ageing | |
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Intellectual functioning in old and very old age
— cross-sectional results from the Berlin Aging Study | | Author(s) | Ulman Lindenberger, Paul B Baltes |
| Journal title | Psychology and Aging, vol 12, no 3, September 1997 |
| Pages | pp 410-432 |
| Keywords | Cognitive processes ; Over 70s ; Reasoning ; Memory and Reminiscence ; Mental speed ; Mental ageing ; Correlation ; Cross sectional surveys ; Germany. |
| Annotation | This study documents age trends, interrelations, and correlates of intellectual abilities in old and very old age (70-103 years) from the Berlin Aging Study (BASE). Fourteen tests were used to assess reasoning, memory, and perceptual speed from the mechanic (broad fluid) domain, and knowledge and fluency from the pragmatic (broad crystallised) domain. Intellectual abilities had negative linear age relations, with more pronounced aged reductions in mechanic than in pragmatic abilities. Interrelations among intellectual abilities were highly positive and did not follow the mechanic-pragmatic distinction. Sociobiographical indicators were less closely linked to intellectual functioning than sensory-sensorimotor variables, which predicted 59% of the total reliable variance in general intelligence. Results suggest that ageing-induced biological factors are a prominent source of individual differences in intelligence in old and very old age. |
| Accession Number | CPA-971120270 A |
| Classmark | DA: BBK: DC: DB: DG: D6: 49: 3KB: 767 |
Data © Centre for Policy on Ageing |
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| ...from the Ageinfo database published by Centre for Policy on Ageing. |
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