ISSN 0439-755X
CN 11-1911/B
主办:中国心理学会
   中国科学院心理研究所
出版:科学出版社

心理学报 ›› 1990, Vol. 22 ›› Issue (01): 32-36.

• • 上一篇    下一篇

项目反应理论中若干模型的比较

余嘉元   

  1. 南京师范大学教育系
  • 出版日期:1990-03-25 发布日期:1990-03-25
  • 通讯作者: 余嘉元

A COMPARISON OF SOME MODELS IN IRT

Yu Jiayuan Department of Education, Nanjing Normal University   

  • Online:1990-03-25 Published:1990-03-25

摘要: 本研究运用蒙特卡罗模拟方法对项目反应理论中的逻辑斯谛、正态卵形、ARCTG、COS和 LINEAR模型进行了比较研究,其结果表明逻辑斯谛、正态卵形和ARCTG模型的参数估计精确度很接近,COS模型的参数估计精确度次之,而LINEAR模型对于项目区分度的估计精确度大大低于另外四个模型,对于项目难度和被试能力的估计精确度和其它模型较接近。

关键词: NULL

Abstract: The Logistic, Normal Ogi ve, ARCTG, COS and LINEAR models in IRT have been compared by Monte Carlo Simulation approach. The result shows that the accuracies of parameter estimation of Logistic, Normal Ogive and ARCTG models are nearly equal; The accuracy of COS model is lower than the above three models; and, for the LINEAR Model, the accuracy is much lower than other four models in estimating item discri- mination than the other four models and is close to them in estimating item difficulty and examinees' ability.

Key words: NULL