Differential Ability Scales (DAS)

The differential ability scales (DAS) is a battery of cognitive and achievement assessments which are individually administered and US-normed. This test was authored by Colin D. Elliot and it specifically measures academic abilities such as memory, phonological processing, familiarity with number concepts, and visual processing of children across developmental levels. DAS can be completed within 45 to 60 minutes and it evaluates the performance of children from ages 2 ½ years to 17 years. In its current second edition, it has four different forms: Preschool, School-Age, Cognitive Battery, and School Achievement.

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