多群IRTモデルにおけるモデル簡素化の評価

DOI Web Site 参考文献24件

書誌事項

タイトル別名
  • An Evaluation of the Effect of Simplifying Group Structure when Multiple Group IRT Models were Used
  • 多群IRTモデルにおけるモデル簡素化の評価 : 水平等化場面のシミュレーションを通じて
  • タグン IRT モデル ニ オケル モデル カンソカ ノ ヒョウカ : ミズ ビョウドウカ バメン ノ シミュレーション オ ツウジテ
  • — Through Simulation Studies Assuming Horizontal Equating Test—
  • — 水平等化場面のシミュレーションを通じて—

この論文をさがす

抄録

Consider the situation when a set of new items are administered as the part of several forms including anchor items. In this case, in order to add the new items to the existing item bank, we could either 1) estimate the item parameters of the items in each form and equate them using the information contained in the anchor items (separate calibration), or 2) combine the new item response data to the old data set and calibrate whole the items again using the multiple group IRT (concurrent calibration). However, as the number of groups becomes large, the existing multiple group IRT calibration program fails to converge due to the lack of available memory. In this study we examined the proper method to merge groups in order to avoid the above problem. Simulation studies showed that the separate calibration estimates were closest to the true value, and the concurrent calibration with reduced groups was similar to the separate calibration if the mean values of latent ability were similar among the merged groups.

収録刊行物

  • 行動計量学

    行動計量学 40 (1), 29-42, 2013

    日本行動計量学会

参考文献 (24)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ