Compared the Wechsler Intelligence Scale for Children (Revised) (WISC-R) and the Leiter International Performance Scale with 40 average and above average students. Results indicated a curvilinear relationship between the WISC-R and the Leiter, which correlates higher at the mean and deviates as the Full Scale varies from the mean. (JAC)

There were no predominant trends of reward preferences among different social classes. Both individual and social rewards effectively raised IQ scores of low socioeconomic status children and reduced the differences in IQ scores between the two groups. (Author/JAC)