The CAS Battery
The CAS standard battery consists of three subtests for each PASS Scale (12 subtests in all) whereas the basic battery has 2 subtests for each scale (8 in total). It takes an hour to administer the standard battery and 40 minutes for the basic battery (Naglieri & Das, 1997).
The CAS Battery provides a standard score for each process as well as a Full Scale standard score. The average internal reliability coefficients across ages 15–17 for the PASS scales are:
- Planning = .88
- Attention = .88
- Simultaneous = .93
- Successive = .93
- Full Scale = .96.
Each of these scales are described in detail below. For further explanation, see Naglieri, 1999 (B), Naglieri & Das (2005). Additional details on the origin of each of the 12 tests in CAS have been discussed at some length in Das, Naglieri &Kirby (1994) and more recently in a review by McCrea (2009).
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