[Rasch] Rasch analysis -rotated booklet design

Bayram Yilmaz bayramyilmaz at gmail.com
Sat Jan 17 15:36:06 EST 2009

Hi all,

I was wondering what programs are available to do Rasch analysis of tests
employing rotated booklet design such as TIMSS and PISA. CONQUEST is one
(perhaps the best) option to do that; however, I cannot afford it. Do you
know if anybody has written a code in R, SAS, etc. that would help doing
Rasch scaling and DIF analyses for large scale assessments?

Would you suggest any references/examples on the topic?

Bayram Yilmaz, Ph.D. Candidate
The Ohio State University
Quantitative Research, Evaluation & Measurement in Education
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