[Rasch] Vocabulary word difficulty

Dan Kindlon dankindlon7 at gmail.com
Sat Oct 4 04:33:18 EST 2014

I hesitate to ask this mundane question amid the fascinating high-level
discussion of "Rasching the PISA", but if anyone has information/links/data
showing item difficulties for English vocabulary words, I would very much
appreciate hearing about it. Thank you.
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