Journal of higher education

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Journal of higher education Volume 6
published_at 2009-03

Test scoring based on item response theory : J-CAT score conversion, interpretation, and usage

項目応答理論に基づくテストの得点 : J-CATの得点換算・解釈・利用法について
Imai Shingo
Ito Sukero
Nakamura Youichi
Kikuchi Kenichi
Akagi Yayoi
Nakasono Hiromi
Honda Akiko
Hiramura Takekatsu
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D500006000007.pdf
About This Article
Descriptions
J-CAT(Japanese computerized adaptive test)は受験者の能力に最も適切な難易度の問題が出題され、4セクションで100点満点、合計400点満点の得点で結果を返す。この得点のもととなるのが、項目応答理論による能力推定値であり、それは概ね-3.5から+3.5の範囲になることがデータから分かっている。この値を換算式にあてはめ、100点満点の得点に線形変換する。換算式の係数を決めるためのシミュレーションを行い、どのように得点換算が行われるか、及びその得点の解釈と利用法について述べる。
Creator Keywords
J-CAT
適応型テスト
日本語
コンピュータテスト
項目応答理論
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