The classification of intelligence has been a prime interest to many for over three-quarters of a century. The Wechsler scales of intelligence and the development of factor analysis have both played major roles in the shaping of psychometric thought. An examination of this joint history by means of a review of the factor analytic studies of the…

Academic psychology has long been composed of two disciplines, one experimental and one correlational. These two disciplines each developed their own method of studying structure in data: multidimensional scaling (MDS) and factor analysis. Both methods use similar kinds of input data, proximity measures on object pairs. Both represent the object…

This study reports, for a group of 257 boys and a group of 286 girls, factor analyses of 43 Project TALENT aptitude and information tests, together with 48 tests from three multiple-aptitude batteries and one high-school achievement battery (The Flanagan Aptitude Classification Tests, Differential Aptitude Tests, General Aptitude Test Battery, and…

First purpose of this study was to investigate empirically the accuracy of prediction using regression weights selected through the use of variance-reduction procedures. (Author)

In an effort to improve the reliability of the Noncognitive Questionnaire (NCQ), the instrument was revised and the revision's reliability and validity were examined examined with black and white college freshmen. The NCQ measures eight non-traditional or non-cognitive variables that relate to minority student retention. The revised NCQ is…