| |
Centre for Policy on Ageing | |
 | |
|
| Age and ability affect practice gains in longitudinal studies of cognitive change | | Author(s) | Patrick Rabbitt, Mary Lunn, Danny Wong |
| Journal title | Journals of Gerontology: Series B, Psychological Sciences and Social Sciences, vol 63B, no 4, July 2008 |
| Pages | pp P235-P240 |
| Source | http://www.geron.org |
| Keywords | Mental ageing ; Cognitive processes ; Evaluation ; Age groups [elderly] ; Longitudinal surveys ; Greater Manchester ; Newcastle upon Tyne. |
| Annotation | During a 20-year longitudinal study conducted in Greater Manchester and Newcastle upon Tyne, 5,842 participants aged 49 to 93 years significantly improved over two to four successive experiences of the Heim AH4-1 intelligence test (first published in 1970), even with between-test intervals of 4 years and longer. After significant attrition by death and dropout and the effects of gender, socioeconomic advantage and recruitment cohort had been considered, it was found that participants with high intelligence test scores showed greater improvement than did those with lower intelligence test scores. Practice gains also reduced with age, even after taking into consideration the individual differences in intelligence test scores. This emphasizes the methodological point that neglect of individual differences in improvement during longitudinal studies underestimates age-related changes in younger and more able participants and the theoretical point that, like all experiences during everyday life, participation in longitudinal studies alters the ability of ageing humans to cope with cognitive demands to different extents according to their baseline abilities. (KJ/RH). |
| Accession Number | CPA-091210211 A |
| Classmark | D6: DA: 4C: BB: 3J: 83: 86A |
Data © Centre for Policy on Ageing |
|
| ...from the Ageinfo database published by Centre for Policy on Ageing. |
| |
|