| Project/Area Number |
23730602
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Educational psychology
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| Research Institution | Tohoku University |
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Principal Investigator |
KUMAGAI Ryuichi 東北大学, 大学院・教育学研究科, 准教授 (60422622)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | 教育評価 / 教育測定 / DIF / 項目反応理論 / 項目応答理論 / 特異項目機能 |
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| Research Abstract |
In this research, the fairness of tests was investigated using DIF analysis. I developed a new approach of DIF, which is applicable when there are more than three groups and polytomous items. A computer program (EasyDIF) was developed to calculate. To investigate the validity of this approach, surveys using psychological scales and can-do-statementsscales were conducted.
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