方法对比
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| 差异项目功能 (DIF)× | Rasch 模型× | |
|---|---|---|
| 领域 | 心理测量学 | 心理测量学 |
| 方法族 | Latent structure | Latent structure |
| 起源年份≠ | 1970s–1993 | 1960 |
| 提出者≠ | William H. Angoff and colleagues (ETS); systematized by Holland & Wainer | Georg Rasch |
| 类型≠ | Item-level bias detection | Item Response Theory / Latent trait model |
| 开创性文献≠ | Holland, P. W. & Wainer, H. (Eds.) (1993). Differential Item Functioning. Lawrence Erlbaum Associates. ISBN: 978-0805809589 | Rasch, G. (1960). Probabilistic Models for Some Intelligence and Attainment Tests. Danish Institute for Educational Research, Copenhagen. link ↗ |
| 别名 | DIF, item bias analysis, measurement non-equivalence, item-level measurement bias | 1PL IRT, one-parameter logistic model, Rasch Modeli — 1PL IRT, 1PL model |
| 相关≠ | 5 | 6 |
| 摘要≠ | Differential item functioning identifies test or survey items that behave differently for examinees from different groups — such as gender, ethnicity, or language background — after controlling for the underlying ability or trait being measured. DIF analysis is essential for fairness evaluation in educational testing and psychological scale development. | The Rasch model, introduced by Georg Rasch in 1960, is the simplest member of the Item Response Theory (IRT) family. It assigns a single difficulty parameter to each test item and places both item difficulties and person abilities on the same logit scale, enabling direct, sample-independent comparison of items and persons. |
| ScholarGate数据集 ↗ |
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