ERIC Number: ED170676
Record Type: RIE
Publication Date: 1978
Reference Count: 0
On the Generality of Ability Factor Structure Across the Adult Life-Span.
Cunningham, Walter R.
Simultaneous maximum likelihood procedures were used to investigate the generality of ability factor structure in adulthood and old age. Data were analyzed for 198 subjects aged 15-32; 173 subjects aged 51-67; and 153 subjects aged 68-83. Variables were 14 ability tests marking five cognitive factors: verbal comprehension, number facility, perceptual speed, symbolic cognition, and flexibility of closure. Results indicated no change in the number of factors and no important shifts in salient loadings. The magnitude of factor covariances, however, tended to increase across age groups. Such shifts were not uniform across factors, but appeared to be dependent on the properties of different factors as to whether factor covariance increases were early or late. The results indicated an increasing interdependence of intellectual functioning in late life. (Author)
Descriptors: Academic Ability, Adult Development, Adults, Age, Age Differences, Cognitive Development, Factor Analysis, Individual Characteristics, Mental Rigidity, Older Adults
University of Florida, Psychology Dept., Gainesville, FL 32611
Publication Type: Speeches/Meeting Papers; Reports - Research
Education Level: N/A
Sponsor: Administration on Aging (DHEW), Washington, DC.
Authoring Institution: N/A
Note: Parts may be marginally legible due to light print