多级评分题计算机自适应测验选题策略比较

研究比较了多级评分题计算机化自适应测验五种选题策略的优劣。应用的IRT模型是Samejima的等级反应模型。参加比较的选题策略有难度均值与能力匹配法、难度中值与能力匹配法、信息量最大法和两种A分层法。比较指标采用了能力估计值返回真值偏差、能力估计标准差、人均用题数和试题调用次数标准差四个。研究采用蒙特卡罗模拟法,结果显示每种方法各有优劣,在分层得当情况下,A分层法(中)的综合效果最佳     

Input Training Matters in L2 Syntactic Representation Entrenchment: Evidence from a Follow-Up ERP Study

Journal of Psycholinguistic Research - The usage-based theory highlights the important role of linguistic input in language acquisition, and assumes that syntactic representations could be...