Test Structure
The DAS-II consists of 20 cognitive subtests which include 17 subtests from the original DAS.
The subtests are grouped into the Early Years and School-Age cognitive batteries with subtests that are common to both batteries and those that are unique to each battery. These batteries provide the General Conceptual Ability score (GCA), which is a composite score focusing on reasoning and conceptual abilities.
Read more about this topic: Differential Ability Scales
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