Saturday, September 12, 2009

Applied Psychometrics 101: Why IQ scores can differ #1 9-12-09 revision

If you downloaded the report AP101 #1 yesterday, you should return to the post and download a revised version. Some confusion in the discussion and estimation of the range of expected IQ difference scores (between different IQ tests that correlate at different levels) has been clarified.

I want to thank Dr. Joel Schneider for pointing out the confusion in the first draft. I plan to post future reports in a similar "draft" form--with the goal to receive comments and feedback that will result in better revised reports.

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