Test Review

摘要

The Differential Ability Scales-Second Edition (DAS-II), created by Colin D. Elliot and published in 2007 by Harcourt Assessment, is an individually administered cognitive test battery, designed to evaluate children ages 2 years 6 months to 17 years 11 months. It purports to measure a hierarchy of cognitive abilities, including broad abilities contributing to a single cognitive factor (g), clusters of skills (i.e. verbal, nonverbal reasoning, and spatial), and a variety of homogeneous diagnostic subtests. Designed for both classification and to identify within-person strengths and needs, the DAS-II is theoretically based on a hierarchical view of mental abilities, representing a range of cognitive theories but with clear reference to the Cattell-Horn-Carroll theory.