The Relationship between Differential Distractor Functioning (DDF) and Differential Item Functioning (DIF): If DDF Occurs, Must DIF Occur?
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Issue Date
2020-05-31Author
Deng, Jiayi
Publisher
University of Kansas
Format
53 pages
Type
Thesis
Degree Level
M.S.Ed.
Discipline
Psychology & Research in Education
Rights
Copyright held by the author.
Metadata
Show full item recordAbstract
Differential Distractor Functioning (DDF) and Differential Item Functioning (DIF) are two critical ways for detecting potential test fairness issues. The current study aims to illustrate the relationship between the existence of DDF and that of DIF by using multiple-choice items in PIRL 2016 achievement test. Multinomial logistic regression and binary logistic regression were used for DDF and DIF detection, respectively. Correlation test and binomial test were used to explore the relationship between DDF and DIF. The results showed no relationship between DDF and DIF was detected. In addition, there was no evidence for the association between DIF and DDF detection and the test content.
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- Theses [3944]
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