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Peer reviewedGustafsson, Jan-Eric; Undheim, Johan Olav – Journal of Educational Psychology, 1992
The stability of some dimensions of ability between the ages of 12 and 15 years was investigated for 225 boys and 242 girls in Sweden. Testing in grades 6, 8, and 9 indicated high stability for the general intelligence factor and for the residual of the General Visual factor. (SLD)
Descriptors: Ability, Adolescents, Age Differences, Comparative Testing
