The Reynolds Intellectual Assessment Scales, Second Edition (RIAS-2; Reynolds & Kamphaus, 2015) is an intelligence test for those aged 3 to 94 years. It contains eight subtests designed to assess general intelligence, verbal and nonverbal intelligence, memory, and processing speed. The two subtests targeting processing speed are new to the…

U.S. Supreme Court justices and other federal judges are, effectively, appointed for life, with no built-in check on their cognitive functioning as they approach old age. There is about a century of research on aging and intelligence that shows the vulnerability of processing speed, fluid reasoning, visual-spatial processing, and working memory to…

As a result of the upcoming Federal reauthorization of the Individuals With Disabilities Education Improvement Act (IDEA), practitioners and researchers have begun vigorously debating what constitutes evidence-based assessment for the identification of specific learning disability (SLD). This debate has resulted in strong support for a method that…

The Wechsler Intelligence Test for Children -- Fifth Edition (WISC-V) is a comprehensive intellectual ability assessment for children. The WISC-V was developed over the course of five years by an expert team including doctoral-level scientists and clinicians and an advisory panel, who provided expert advice about intellectual ability testing,…

Students (n=210) in learning disabilities research centers were administered the Wechsler Intelligence Scale for Children-Revised and the Woodcock-Johnson Psychoeducational Battery-Revised. A model considering the reliability of each measure identified learning disabilities three times more often than a regression analysis model. The regression…

Reasons for poor performance on the Digit Span subtest of the Wechsler Intelligence Scale for Children-Revised were examined, using learning disabled (LD) children who performed poorly on the test, LD children who performed normally, and average children. One LD group was unable to establish mnemonic codes for familiar auditory stimuli.…

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)

It is often the case that intelligence tests do not measure what they purport to measure, although it is commonly assumed that every test with a different name is a test of different skills, and that tests with the same name test the same skills. Spearman attempted to study the relationship between tests that supposedly measured different mental…

The use of the Wechsler Intelligence Scale for Children, Third Edition (WISC-III) and its interpretation in educational use are discussed. To measure intelligence, Wechsler believed one must measure the various aptitudes that contribute to the total behavior of the individual. The WISC-III has six verbal subtests and seven performance subtests.…