Wednesday, May 27, 2009
Gives us all a bad name
If you don’t understand the psychological test you are giving, how can you do a meaningful interpretation of the results? In the WISC-IV if the VCI or PRI is 13 points different from the WMI and/or PSI you need to calculate a GAI, as FIQ is NOT an appropriate measure of the person’s abilities. I can’t tell you how many school reports that use the FIQ despite a huge difference in the index scores. I have to say 13 points is about the greatest difference, so I had to write about this one. Its worse with this case because there is already a diagnosis that influences executive functioning (and YES, they did know about it, it was in the first paragraph). Correcting for executive functioning impairment this client is totally a different picture. I am going to guess they see disruptive behaviors as willful and intentional, rather than deregulated related to organic neurological issues and impairment in executive functioning.
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