[Rasch] Rasch vs. IRT

SR Millis srmillis at mindspring.com
Sat Feb 25 07:04:29 EST 2006


  I'm in the process of reviewing a manuscript in which the authors indicate that they used the Rasch-IRT technique via the PARSCALE software. I was under the impression, perhaps erroneously, that the Rasch model isn't an IRT model. That is, the 1-parameter IRT isn't the same thing as the Rasch model. Am I correct?
   
  Thanks,
  SR Millis
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