Data of Skodak and Skeels (1949) are reinterpreted to suggest that at least one-third of the reported advantage of adopted children's intelligence quotients (IQ) over adoptive mothers is an artifact of the IQ test norms. The children's mean IQ could easily be higher than the estimated figures usually quoted. (SLD)

Study results indicate that correlations between measures of the home environment and children's intelligence quotient at 7 years of age are often mediated genetically. Among 153 adoptive and 136 nonadoptive families, such correlations were generally lower in adoptive families than in nonadoptive families. (RH)

Introduces the inspection-time (IT) measure in psychology, and argues that its much-replicated correlation with intelligence quotient (IQ) and its potential for theoretical tractability has more potential for the understanding of individual differences in cognitive ability than other indices of human information processing. It summarizes studies…

Private schooling in the third world is on the increase and in particular in one of the low-income areas of India, where a data analysis on Hyderabad has been carried out. The University of Newcastle has conducted an initiative research in Hyderabad on the impact on pupils' progress in Reading and Spelling tests. This initiative was called…

The purpose of the study was twofold: first, to determine the reliability of a paired-associate (PA) task when used as a test of learning proficiency; and second, to assess the relationship between performance on the PA task and on IQ tests as a function of grade level (kindergarten, first, third) and socioeconomic status (high, low). The…