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|Title: ||Detection of differential item functioning in the graded response model|
|Authors: ||Cohen, Allan S.|
Baker, Frank B.
|Issue Date: ||1993|
|Citation: ||Cohen, Allan S, Kim, Seock-Ho & Baker, Frank B. (1993). Detection of differential item functioning in the graded response model. Applied Psychological Measurement, 17, 335-350. doi:10.1177/014662169301700402|
|Abstract: ||Methods for detecting differential item functioning
(DIF) have been proposed primarily for the
item response theory dichotomous response model.
Three measures of DIF for the dichotomous
response model are extended to include Samejima’s
graded response model: two measures based on
area differences between item true score functions,
and a χ² statistic for comparing differences in item
parameters. An illustrative example is presented.
Index terms: differential item functioning, graded
response model, item response theory.|
|Appears in Collections:||Volume 17, 1993|
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