Reynolds Intellectual Assessment Scales (RIAS)
Cecil R. Reynolds, Ph.D., and Randy W. Kamphaus, Ph.D.
Here is a comprehensive and cost-effective intelligence test--a reliable instrument that gives clinicians the information they need to make decisions about classification, selection, and educational placement.
The RIAS is an individually administered test of intelligence appropriate for ages 3 through 94 years, which includes a co-normed, supplemental measure of memory. The RIAS includes a two-subtest Verbal Intelligence Index (VIX), a two-subtest Nonverbal Intelligence Index (NIX), and a Composite Intelligence Index (CIX). The CIX assesses overall general intelligence, including the ability to reason, solve problems, and learn. The VIX assesses verbal intelligence by measuring verbal problem solving and verbal reasoning where acquired knowledge and skills are important. The NIX assesses nonverbal intelligence by measuring reasoning and spatial ability, using novel situations and stimuli that are predominantly nonverbal. Administration of the four intelligence subtests by a trained, experienced examiner requires approximately 20 to 25 minutes.
A Composite Memory Index (CMX) can be derived from the two supplementary memory subtests, Verbal Memory and Nonverbal Memory. The Verbal Memory subtest provides a basic, overall measure of short-term memory skills (e.g., working memory, short-term memory, learning) and assesses recall in the verbal domain. The Nonverbal Memory subtest measures the ability to recall pictorial stimuli in both concrete and abstract dimensions. These short-term memory assessments require approximately 10 minutes of additional testing time.
The RIAS provides a thorough assessment of the client's current level of intellectual functioning and also allows the examiner to evaluate the relationship between the client's memory and cognitive skills. The Manual provides normative data based on 2,438 individuals ages 3.0 through 94 years residing in 41 states, matched to the 2001 U.S. Census data for age, gender, geographic region, ethnicity, and years of education completed.