An Analysis of Diversity in the Cognitive Performance of Elderly Community Dwellers: Individual Differences in Change Scores as a Function of Age
This longitudinal study investigated whether age is associated with increases in interindividual variability across 4 ability domains using a sample of 426 elderly community dwellers followed over 3.5 years. Interindividual variability in change scores increased with age for memory, spatial function...
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| Veröffentlicht in: | Psychology and aging 1999-09, Vol.14 (3), p.365-379 |
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| container_title | Psychology and aging |
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| creator | Christensen, Helen Korten, A. E Jorm, A. F Henderson, A. S Jacomb, P Rodgers, Bryan Mackinnon, A. J |
| description | This longitudinal study investigated whether age is associated with increases in interindividual variability across 4 ability domains using a sample of 426 elderly community dwellers followed over 3.5 years. Interindividual variability in change scores increased with age for memory, spatial functioning, and speed but not for crystallized intelligence for the full sample and in a subsample that excluded dementia or probable dementia cases. Hierarchical regression analyses indicated that being female, having weaker muscle strength, and having greater symptoms of illness and greater depression were associated with overall greater variability in cognitive scores. Having a higher level of education was associated with reduced variability. These findings are consistent with the view that there is a greater range of responses at older ages, that certain domains of intelligence are less susceptible to variation than others and that variables other than age affect cognitive performance in later life. |
| doi_str_mv | 10.1037/0882-7974.14.3.365 |
| format | Article |
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Having a higher level of education was associated with reduced variability. These findings are consistent with the view that there is a greater range of responses at older ages, that certain domains of intelligence are less susceptible to variation than others and that variables other than age affect cognitive performance in later life.</description><identifier>ISSN: 0882-7974</identifier><identifier>EISSN: 1939-1498</identifier><identifier>DOI: 10.1037/0882-7974.14.3.365</identifier><identifier>PMID: 10509693</identifier><language>eng</language><publisher>Washington, DC: American Psychological Association</publisher><subject>Activities of Daily Living ; Adult. 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Hierarchical regression analyses indicated that being female, having weaker muscle strength, and having greater symptoms of illness and greater depression were associated with overall greater variability in cognitive scores. Having a higher level of education was associated with reduced variability. These findings are consistent with the view that there is a greater range of responses at older ages, that certain domains of intelligence are less susceptible to variation than others and that variables other than age affect cognitive performance in later life.</description><subject>Activities of Daily Living</subject><subject>Adult. Elderly</subject><subject>Age Differences</subject><subject>Age Factors</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Aging - psychology</subject><subject>Australian Capital Territory</subject><subject>Biological and medical sciences</subject><subject>Cognition & reasoning</subject><subject>Cognition - physiology</subject><subject>Cognitive performance</subject><subject>Cognitive Processes</subject><subject>Community living</subject><subject>Developmental psychology</subject><subject>Elderly people</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Health Status</subject><subject>Human</subject><subject>Humans</subject><subject>Individual Differences</subject><subject>Individuality</subject><subject>Intelligence</subject><subject>Longitudinal Studies</subject><subject>Male</subject><subject>Memory</subject><subject>Older people</subject><subject>Psychiatric Status Rating Scales</subject><subject>Psychology. Psychoanalysis. Psychiatry</subject><subject>Psychology. 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| ispartof | Psychology and aging, 1999-09, Vol.14 (3), p.365-379 |
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| subjects | Activities of Daily Living Adult. Elderly Age Differences Age Factors Aged Aged, 80 and over Aging - psychology Australian Capital Territory Biological and medical sciences Cognition & reasoning Cognition - physiology Cognitive performance Cognitive Processes Community living Developmental psychology Elderly people Female Fundamental and applied biological sciences. Psychology Health Status Human Humans Individual Differences Individuality Intelligence Longitudinal Studies Male Memory Older people Psychiatric Status Rating Scales Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Psychomotor Performance - physiology Regression Analysis Spatial Perception |
| title | An Analysis of Diversity in the Cognitive Performance of Elderly Community Dwellers: Individual Differences in Change Scores as a Function of Age |
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