Grinity & Dottie know more about the Weschler IQ tests than I do, but I'll chime in with a little info as both of my kids have been tested on those as well. In terms of his deficits impacting the PRI index, I could potentially see visual discrimination deficits lowering the block design (BD) test and the PSI index as a whole. I don't know that auditory deficits would come into play on either of those, though.

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