Friday, January 13, 2012

How to estimate best IQ score if someone has taken multiple IQ tests: The psychometric magic of Dr. Joel Schneider

Dr. Joel Schneider has posted an excellent explanation on how to estimate a person's "true IQ score" when a person has taken multiple IQ tests at different times. Probably the most important take-away message is one should never calculated the simple arithmetic average. The median would be more appropriate, but Joel provides and even more psychometrically sound method and an Excel spreadhsheet for implementing his excellent logic and methods.

- Posted using BlogPress from Kevin McGrew's iPad

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