面向精准教学的多级认知诊断模型构建与应用  

Construction and Application of Multilevel Cognitive Diagnosis Model Oriented to Precision Teaching

作　　者：魏培文[1] 朱珂[1] 叶海智[1] 黄宏涛[1] 孔德宇[1] WEI Pei-wen;ZHU Ke;YE Hai-zhi;HUANG Hong-tao;KONG De-yu(Fauculty of Education,Henan Normal University,Xinxiang,Henan,China 453007)

机构地区：[1]河南师范大学教育学部,河南新乡453007

出　　处：《现代教育技术》2023年第8期117-126,共10页Modern Educational Technology

基　　金：国家社会科学基金教育学一般课题“新发展阶段县域普通高中振兴的协同机制与实现路径研究”(项目编号:BHA220128);河南省高校科技创新团队支持计划“教育大数据分析与应用”(项目编号:22IRTSTHN031);河南省高等学校重点科研项目“深度知识追踪模型构建及个性化教学应用”“面向自适应学习的深度知识追踪模型研究”(项目编号:23A880009、22A880010)的阶段性研究成果。

摘　　要：利用精准教学促进学生个性化成长是教育的理想诉求,也是国家教育政策的现实要求。多级认知诊断模型作为实施精准教学的有效工具,目前虽然应用广泛,但需要大量样本进行参数估计,在课堂教学中应用的门槛较高。基于此,文章首先根据认知及教学理论,对知识属性掌握程度进行多级划分,并构建了面向精准教学的多级认知诊断模型;然后,文章应用多级难度试题对学生知识状态进行测量分级,并在此基础上利用BP神经网络消除学生答题过程中的猜测或失误,从而实现较少样本情况下对学生知识状态的多级诊断;最后,文章应用模型开展教学实验,从诊断结果准确度、补救学习效果和学生满意度方面,验证模型能够对学生知识状态进行高效精准的多级诊断。文章通过研究,旨在为精准教学的实施和学生的个性化培养提供有效依据。Precision teaching to promote students’personalized growth is the ideal demand of education and also the realistic requirement of national education policy.As an effective tool for implementing precision teaching,multilevel cognitive diagnosis models is widely used at present,but it needs a large number of samples for parameter estimation and has a high threshold for application in classroom teaching.Therefore,this paper first divided the mastery of knowledge attributes into multiple levels according to the cognition and teachingtheory,and a multilevel cognitive diagnosis model oriented to precision teaching was constructed.Then,students’knowledge state was measured and graded using multilevel tests.Accordingly,BP neural network was used to eliminate the guesses or mistakes in the process of students’answer,so as to realize the multilevel diagnosis of students’knowledge state under the condition of less samples.Finally,the model was applied to carry out teaching experiment to verify that the model improves the efficiency and accuracy of multilevel diagnosis of students’knowledge state from the perspectives of diagnostic result accuracy,remedial learning effect and student satisfaction.The research of isomorphism in this paper was aimed to proving effective basis for the implementation of precision teaching and students’individualized cultivation.

关 键 词：精准教学 多级认知诊断 认知诊断模型 BP神经网络 

分 类 号：G40-057[文化科学—教育学原理]