Comparing WAIS-R Qualitative Information for People 75 Years and Older, With vs. Without Brain Damage

Paul R. Yarnold

Optimal Data Analysis, LLC

Base rates of qualitative errors made by people older than 74 years, with (n=42) vs. without (n=225) brain damage, are compared for the Picture Arrangement (PA), Block Design (BD), and Digit Symbol (DS) subtests of the WAIS-R.

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