Test linking

Interesting story regarding comparisons of international and US tests
via statistical linking---possible due to IRT psychometric methods

http://www.edweek.org/ew/articles/2009/06/17/35international.h28.html?tkn=[LWFqkY8sAPA58V0To4t0Vv3UAToLF2VOeUC

Kevin McGrew PhD
Educational/School Psych.
IAP (www.iapsych.com)

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