The ability of 248 older adults to improve their performance on fluid intelligence tests, with or without tutor-guided instruction in cognitive skills, was studied using multidimensional longitudinal structural equation models. Results suggest considerable plasticity in adult intellectual function and the capacity to improve performance. (SLD)

Forty children (ages 9-12) identified as having dyslexia on the basis of intelligence and achievement tests were evaluated. Results imply that a test of phonological sensitivity and another of nonsense word decoding identified children who were dysphonetic. Nondysphonetic disabled readers were older and had higher verbal intelligence quotients…

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)

The constancy of intelligence quotients (IQs) of 161 gifted Israeli children, obtained initially in grades K-4 and retested 1-4 years later, was examined. Results indicated that 86% still qualified as gifted on the retest, with mean differences of five to eight IQ points. Performance scores tended to remain constant, whereas verbal scores tended…

Comparisons of Wechsler Intelligence Scale for Children-Revised scores, for 24 children with learning disabilities demonstrating a low verbal, high performance intelligence quotient (IQ) discrepancy and 33 slow learning children having uniformly low verbal and performance IQs, revealed few cognitive differences beyond the Performance Scale…

The theoretical background, organization, performance subtests (object assembly, geometric design, block design, mazes, picture completion, and animal pegs), verbal subtests (information, comprehension, arithmetic, vocabulary, similarities, and sentences), reliability, validity (factor analysis), interpretation, advantages, and limitations of the…

The Cognitive Levels Test, for use with ages 5-21, is designed as a quick cognitive assessment instrument with 4 subdomains: verbal reasoning, abstract reasoning, quantitative reasoning, and memory. This paper describes the test's administration, summation of data, standardization, reliability, and validity. (JDD)

The Stanford Binet Intelligence Scale measures four areas of cognitive abilities (verbal reasoning, abstract/visual reasoning, quantitative reasoning, and short-term memory), providing a continuous scale for appraising cognitive development from age two to adult. This paper describes the test's administration, standardization, reliability, and…

Discussion of time-related measures in computerized ability tests focuses on a study of college students that used two intelligence test item types to develop a multitrait, multimethod assessment of response time measures. Convergent and discriminant validation are discussed, correlations between response time and accuracy are examined, and…

Discusses visual literacy and its impact on school performance. Topics include rising scores on intelligence tests; the importance of visual literacy skills for university students; and implications for school practices related to technology, including teaching methods, teacher training, and equity issues. (LRW)

Examines national data sets of cognitive scores for intellectual dysgenesis by considering race, socioeconomic status, and ability-related changes in test scores over time. The analysis did not support the dysgenic hypothesis; however, it indicates a convergence of the various segments of U.S. society. (MMU)

Five-year follow-up study examined the predictive validity of the Kaufman Assessment Battery for Children (K-ABC) for 39 children identified during preschool as exhibiting language impairment (n=10), behavior control deficits (n=13), or normal language and behavioral development (n=16). Results generally supported the predictive validity of the…

The Mayes Motor Free Compilation (MMFC) assesses mental ability in young (under age 2) children with motor disabilities. This study evaluated the concurrent validity of the MMFC by administering it and the Bayley Scales of Infant Development to normal children. Findings suggest that the MMFC provides a valid estimate of mental age, even without…

Current psychometric and testing practices are inadequate for assessing the intelligence of American Indian students, due to complicating factors of culture and language. These deficient methods are then used to make educational decisions, resulting in improper special education placements. The benefits of alternative methods of testing, including…

D.V. Cicchetti, A.S. Kaufman, and S.S. Sparrow (this issue) use six criteria to evaluate the published findings from seven different studies of PCB exposure and neuropsychological function. They point out a number of weaknesses or flaws in each study and conclude that these weaknesses make the overall conclusion that PCB exposure negatively…