Testing Rasch models for polytomous items: With an example concerning detection of item bias
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DIF
Cees A. W. Glas (1991). Testing Rasch models for polytomous items: With an example concerning detection of item bias. Cito , 1991. https://scholar.google.com/citations?view_op=view_citation&hl=en&user=kgtpW6gAAAAJ&cstart=100&pagesize=100&citation_for_view=kgtpW6gAAAAJ:ZHo1McVdvXMC