The differentiation hypothesis suggests that the degree to which general intelligence ("g") pervades performance on mental tests is greater at lower ability levels. Analysis of data from Differential Aptitude Test results for over 10,500 Irish school children ages 14 to 17 years supports the differentiation hypothesis. (SLD)

The concept of aptitude is reviewed, and the uses and misuses of aptitude tests are considered. Many aptitude tests measure general ability plus certain more specialized abilities that are important for success in particular educational programs. Aptitude tests can be subdivided into: (1) group-administered aptitude tests, such as the Scholastic…

Major tenets summarizing Jensen's two-level theory of mental abilities were examined in a static-group comparison, correlational study. Caucasian siblings in grades one through four from low- and middle-socioeconomic (SES) populations were administered five Level I (associative learning ability) tasks and Raven's Progressive Matrices. Consistent…

Examines five themes in "Testing for Competence Rather than for "Intelligence" (D. C. McClelland, "American Psychologist," 1973), and reviews relevant literature. Despite wide acceptance of McClelland's views, other evidence that does not show that competency testing surpasses cognitive ability testing in predicting…

This article examines the potential contribution of latent trait models to the study of intelligence. Nontechnical introductions to both unidimensional and multidimensional latent trait models are given. Multidimensional latent trait models can be used to test alternative multiple component theories of test item processing. (Author/CTM)

The general intelligence factor (g) was investigated using 170 university students across three batteries of ability measures: (1) a short-term memory battery; (2) the Multidimensional Aptitude Battery; and (3) a reaction time battery. Results support the notion of g and suggest short-term memory as an essential aspect of intelligence. (SLD)

Many multiple aptitude test batteries, including the Air Force Officer Qualifying Test (AFOQT), used for assigning or classifying individuals to jobs or for occupational counseling have subtests covering a broad range of content such as science, mathematics, reading, vocabulary, perceptual, mechanical, or technical knowledge. This content reflects…

Part of the New Canadian Study required the examination of general ability measures. The requisites were that the measure selected be applicable for Grades 5 to 9 and that it could be administered to students with a limited command of English. Included in this report are: (1) a summary of the considerations involved in selecting a general…

Problems in the application and misapplication of test scores are discussed. Tests have been used to achieve optimum use of resources rather than optimum development of the individual. Or, they have been used to predict a child's achievement rather than to identify his learning difficulties. This latter use would indicate when and where…