This dissertation proposes an approach for synthesizing the Mantel-Haenszel (MH) Differential Item Functioning (DIF) index. It is shown that meta-analytic summaries of MH DIF estimates have potential implications for test development through observations of DIF changes. DIF changes could occur if the DIF magnitudes of items vary over time or across different groups. This approach is an extension of meta-analysis techniques for odds ratios. Unlike the typical odds ratio, the MH DIF is a common odds ratio, indicating the average of odds ratios across all matched ability levels. Also, the dissertation examines how the Q test of homogeneity for MH DIF indices behaves as a function of the magnitude of variations in DIF using a simulation study. This proposed approach is used with real data. My example uses data on the reading achievement of standard curriculum students (SCS) and students with disabilities (SWD) on a state-wide assessment. Thus, this dissertation makes a contribution to the understanding of SWD DIF trends in reading achievement by investigating meta-analytic summaries of the MH DIF index. In addition, this dissertation investigates whether the values of DIF for SCS vs. SWD are dependent on the type of reading item tested. Educational implications are discussed. / A Dissertation submitted to the Department of Educational Psychology and Learning Systems in partial fulfillment of the requirements for the degree of Doctor of
Philosophy. / Spring Semester, 2012. / December 20, 2011. / DIFFERENTIAL ITEM FUNCTIONING, MANTEL-HAENSZEL, META-ANALYSIS / Includes bibliographical references. / Betsy Jane Becker, Professor Directing Dissertation; Stephanie Dent Al Otaiba, University Representative; Yanyun Yang, Committee Member; Insu Paek, Committee Member.
| Identifer | oai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_182950 |
| Contributors | Koo, Jin (authoraut), Becker, Betsy Jane (professor directing dissertation), Al Otaiba, Stephanie Dent (university representative), Yang, Yanyun (committee member), Paek, Insu (committee member), Department of Educational Psychology and Learning Systems (degree granting department), Florida State University (degree granting institution) |
| Publisher | Florida State University, Florida State University |
| Source Sets | Florida State University |
| Language | English, English |
| Detected Language | English |
| Type | Text, text |
| Format | 1 online resource, computer, application/pdf |
| Rights | This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). The copyright in theses and dissertations completed at Florida State University is held by the students who author them. |
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