The Woodcock-Johnson IV Tests of Cognitive Abilities (WJ IV COG) is a comprehensive assessment battery designed to assess broad and narrow cognitive abilities, as defined by the Cattell-Horn-Carroll (CHC) theory of intelligence. Previous studies examined the invariance of the WJ assessments across sex and age groups using factor analytic methods.…

Intelligence has been defined in multiple ways throughout history. In the last 100 years a psychometric approach to define the concept of intelligence has come to dominate the concept. This Commentary provides a brief overview of the history and concepts of intelligence with an emphasis on intellectual assessment. Particular focus is placed on the…

Published by the Canadian Test Centre (CTC), "Insight" represents a group-administered test of cognitive functioning that has been built entirely upon the Cattell-Horn-Carroll (CHC) theoretical framework. "Insight" is intended to be administered by educators and screen entire classrooms for students who present learning…

A multiple baseline across participants design was used to examine the functional relation between the "Self-Determined Learning Model of Instruction" (SDLMI) intervention and the on- and off-task behaviors of high school students with emotional and behavioral disorders (EBD). The results showed that all four students significantly…

This article reviews factor-analytic research on individually administered intelligence tests from a Cattell-Horn-Carroll (CHC) perspective. Although most new and revised tests of intelligence are based, at least in part, on CHC theory, earlier versions generally were not. Our review suggests that whether or not they were based on CHC theory, the…

First graders (N=26) completed the Wechsler Intelligence Scale for Children-Revised, McCarthy Scales, and Woodcock-Johnson Scales of Cognitive Ability. Two years later, their academic achievement was determined by Wide Range Achievement Test and teacher ratings. Results suggest that all three intellectual measures are appropriate for predicting…

Thirty normal first-grade students with a mean age of 7.0 years were administered the Wechsler Intelligence Scale for Children-Revised, the McCarthy Scales of Children's Abilities, and the Woodcock-Johnson Tests of Cognitive Ability. Pearson intercorrelations among the summary indices of these cognitive measures were uniformly high, ranging from…

Performance of 46 gifted and talented students (7-12 years old) on the Woodcock-Johnson Tests of Cognitive Ability and the Wechsler Intelligence Scale for Children-Revised was compared. Concurrent validity between the two full-scale measures was indicated. Scores on the alternative cluster of Broad Reasoning provided more accurate appraisal of…

Background: The marked degree of heterogeneity in persons with developmental dyslexia has motivated the investigation of possible subtypes. Attempts have proceeded both from theoretical models of reading and the application of unsupervised learning (clustering) methods. Previous cluster analyses of data obtained from persons with reading…

Reported discrepancies between the WJTCA (Woodcock-Johnson Tests of Cognitive Ability) and Wechsler Intelligence Test for Children-Revised (WISC-R), scores of normal, learning disabled, and emotionally disturbed children (n=60) were analyzed. Results confirmed the validity of the WJTCA general cognitive ability score and indicated subscale…

Evaluated correlations between Wechsler Intelligence Scale for Children-Revised, Woodcock-Johnson (W-J) Achievement clusters, Woodcock-Johnson Aptitude clusters, and Broad Cognitive Ability Score in 60 Behavior-Disordered male adolescents. Aptitude cluster scores had insufficient validity to justify computation for population; Broad Cognitive…

Computed correlations between the Wechsler Intelligence Scale for Children-Revised (WISC-R) and the Woodcock-Johnson Tests of Cognitive Abilities (WJTCA) in behavior disordered male adolescents (N=100). Results indicated that all WISC-R subtests correlated with the W-J Broad Cognitive Ability score. (LLL)

The study compares the performance of 50 fourth grade learning disabled students on the Wechsler Intelligence Scale for Children-Revised (WISC-R) and the Tests of Cognitive Abilities from the Woodcock-Johnson Psycho-Educational Battery (WJTCA). Results indicated that learning disabled Ss performed more poorly on the Tests of Cognitive Abilities…

Evaluated correlations between the Woodcock-Johnson Test of Cognitive Abilities (WJTCA) and the Wechsler Intelligence Scale for Children-Revised (WISC-R) with 55 behavior disordered adolescent males. Results indicated good concurrent validity for the WJTCA Broad Cognitive Score but suggest that WJTCA is heavily verbal weighted. (JAC)

Investigated the external validity of the Woodcock-Johnson Tests of Cognitive Ability (WJTCA) in learning disabled (LD) elementary school children (N=60). Results suggested that the WJTCA's achievement emphasis jeopardizes its validity for assessing and classifying LD students within the currently accepted and mandated ability-achievement…