少数受講者および少数問題における項目反応理論を利用した信頼性のある受講者能力と問題難易度の同時評価方法の研究

摘要

The objective and reliable achievement level evaluation is more and more important for e-Learning and university education. Item Response Theory (IRT) is known as a method of the achievement level evaluation by the standardized questions (item) group. However, it requires lots of cost and time. The purpose of the research is to propose a procedure to evaluate both learner achievement levels as well as the difficulties of the questions simultaneously with the small number of learners and questions whose difficulties are already known. The test set was investigated and analyzed by using IRT. The results suggest that the proposed method can evaluate both the student achievement levels and item difficulties at some steps simultaneously.%本論文では，現在一般的に利用されているIRTのようにrn数万，数十万単位の大量の問題と受講者を用意することなrnく，大学の1クラス等の小規模のグループでも簡単に実施rnできる，少数のテスト問題及び学習者からそれらの項目難rn易度と能力値を同時並行的に測定する方法を提案した。そrnの結果，7段階評価をする場合においては以下のような結論rnが得られた。