This article briefly traces the development of intelligence testing from its beginnings in 1905 with Alfred Binet; cites the intelligence theories of Spearman, Thurstone, and Guilford; and examines current objections to intelligence tests in terms of what they test and how they are interpreted. (SJL)

A general working model of cognitive development assumes that there are sets of orthogonal cognitive abilities, which remain fairly stable after age 7. This paper examines the long term predictive and diagnostic value of assessing specific cognitive abilities among preschool children. This model by empirical studies was defendable on the grounds…

A study of student attitudes toward drug abuse and the drug abuser was conducted, using a modified version of Marcus's "Alcoholism Questionnaire." One hundred twenty-two college students participated. Mean factor scores (MFS) were developed for the nine factors tested. Marcus's "safe operating criterion" (ignore MFS differences…

The stability and change of verbal, non-verbal, and total IQ scores from group tests were investigated for students tested at Grades 1, 2, 4, 7, 9, and 11. Conclusions are discussed in detail, and the following recommendations are made: (1) Group intelligence tests should not be routinely administered in Grades 1 and 2 unless the users and…