[Rasch] many facet Rasch model
sgracia at ric.edu
Fri Mar 10 07:20:57 EST 2006
I am interested in using the many-facet Rasch model to study the ratings of judges of student exhibitions. I am wondering how much overlap among raters is necessary. In the setting I am interested in, I have 40 panels of 5 raters. Each panel judges 5 students’ exhibitions. Each panel stays “intact” (i.e., judges do not move around at all during judging, so there is no mixing of panels). Is it possible to use the many facet Rasch model with this set up, or does there have to be overlapping of judges on more than one panel?
Any guidance you could give me would be much appreciated.
Susan Gracia, PhD
Educational Leadership Program
Dept. of Counseling, Educational Leadership, and School Psychology
Rhode Island College
600 Mount Pleasant Avenue
Providence, RI 02908-1991
email: sgracia at ric.edu
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