Both general (i.e., shared across different cognitive measures) and specific (i.e., unique to particular cognitive measures) influences can be postulated to contribute to the relations between adult age and measures of cognitive functioning. Estimates of general and specific influences on measures of memory, speed, reasoning, and spatial…

The Cattell-Horn-Carroll (CHC) model is a comprehensive model of the major dimensions of individual differences that underlie performance on cognitive tests. Studies evaluating the generality of the CHC model across test batteries, age, gender, and culture were reviewed and found to be overwhelmingly supportive. However, less research is available…

AS A PHASE OF A STUDY OF THE SOCIAL CONSEQUENCES OF ABILITY TESTING, A NATIONAL STRATIFIED RANDOM SAMPLE OF 1,482 ADULTS WAS INTERVIEWED. OF THE RESPONDENTS, 59 PERCENT REPORTED AT LEAST ONE EXPERIENCE WITH A TEST OF APTITUDE OR INTELLIGENCE. WHILE THEY SAID THEY WERE RELATIVELY WELL INFORMED ABOUT TEST RESULTS THEY CONSIDERED SUCH TESTS AS LESS…

A correlation matrix of 21 structure-of-intellect (SOI) tests taken by 204 Marine officers at a military base in Southern California, which was intended to reflect aptitudes for military leadership, was reanalyzed through exploratory factor analysis and confirmatory maximum likelihood factor analysis. Higher order factors appeared to have…

Fourteen estimates were made of "g" (general cognitive ability) from the normative sample of a multiple-aptitude test battery with a weighted sample representing 25,409,193 men and women. The methods, which included principal components, unrotated principal factors, and hierarchical factor analysis, are equivalent for this test. (SLD)

This study investigated the influence of examiner race (white versus Negro), style of interaction (warm versus cold), and sex (male versus female) on test responses of 96 male Negro subjects enrolled in an antipoverty work experience program. The Information, Comprehension, Vocabulary, Digit-Symbol, Block Design, and Picture Arrangement subtests…

Tests of spatial ability were analyzed for their analog (visuospatial) and nonanalog (verbal reasoning) components, using factor analyses of items and test scores. The self-selected sample consisted of over 2000 clients (average age about 26 or 27) employing the Johnson O'Connor Research Foundation's aptitude evaluation services in 12 metropolitan…

More than three hundred assessment tools applicable for the evaluation of children and adults with specific learning disabilities in terms of age applicability, time to administer, and salient characteristics are briefly described. They are grouped into ten categories: Intelligence Tests, Preschool Readiness Tests, Motor, Sensory, and Language…