In this study, children (ages 7-12) of average intelligence who had learning disabilities (LD) (n=29) and typical children (n=30) were individually tested in a task that investigated the development of proportional structures of thought. In addition, mathematical knowledge was assessed on the Woodcock-Johnson Tests of Achievement-Revised (WJTA-R).…

Developmental differences in reasoning ability and item processing demands are analyzed in a study of cognitive determinants of number analogy performance in two IQ levels of elementary school children and college students. The amount of solution-related information in working memory was the crucial processing demand. Process differentiations of…

Evaluates fourth-to seventh-grade children on two aspects of social cognition: interpersonal understanding and means-ends problem-solving ability. Relates the two variables to sex, age, IQ, social class, and multiple dimensions of competence. Both variables significantly correlated with I.Q. while interpersonal understanding also correlated with…