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Your search for KW:"polytomous DIF" returned 2 results.

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  1. Ensuring the Fairness of GRE Writing Prompts: Assessing Differential Difficulty

    Author(s): Broer, Markus ; Lee, Yong-Won ; Rizavi, Saba ; Powers, Donald E.

    Publication Year: 2005

    Source: ETS Research Report

  2. Comparability of TOEFL-CBT Writing Prompts for Different Native Language Groups

    Author(s): Lee, Yong-Won ; Breland, Hunter M. ; Muraki, Eiji

    Publication Year: 2004

    Source: ETS Research Report

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