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ERIC Number: EJ897026
Record Type: Journal
Publication Date: 2010-Oct
Pages: 5
Abstractor: As Provided
Reference Count: N/A
ISSN: ISSN-1041-6080
Reciprocal Effects between Fluid and Crystallized Intelligence and Their Dependence on Parents' Socioeconomic Status and Education
Rindermann, Heiner; Flores-Mendoza, Carmen; Mansur-Alves, Marcela
Learning and Individual Differences, v20 n5 p544-548 Oct 2010
The investment theory of Cattell supposes an influence of fluid on crystallized intelligence. The development of fluid intelligence largely depends on biological factors, of crystallized intelligence on fluid intelligence and environmental stimulation. To test this theory two contrasting samples representing a broad ability range were chosen, a Brazilian sample (ages 7 to 15, N = 833, mean IQ 92) and a sample with a higher ability level in Germany (ages 11 to 19, N = 722, IQ 118). Analyses of cross-lagged effects across two year intervals show similar effects of fluid intelligence on crystallized and vice versa (around beta = 0.17). Parental socioeconomic status and parental education have in both samples a slightly stronger effect on crystallized than on fluid intelligence. The first result refutes Cattell's theory, the second gives some support. The development of fluid intelligence also seems to be influenced by non-biological environmental factors resulting in a concept of intelligence as a malleable ability. (Contains 6 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Brazil; Germany