基于MATLAB的教师评教系统数据的可信度分析和优化  

Reliability Analysis and Optimizing of Data from Teaching Assessment System based on MATLAB

作　　者：沈湘宇 张引琼 SHEN Xiang-yu, ZHANG Yin-qiong （Information Science and Technology College of Hunan Agricultural University, Changsha 410128, China）

机构地区：湖南农业大学信息科学技术学院,湖南长沙410128

出　　处：《电脑知识与技术》2016年第1期13-15,共3页Computer Knowledge and Technology

基　　金：湖南农业大学教改项目B2015120 MOOC支撑下《Java程序设计》颗粒化课程资源群建设;湖南农业大学教改项目B2015123基于模糊数学的课堂教学质量评价体系研究

摘　　要：为了改良评教方案,对教师评教系统数据进行了分析并提出了一套更为合理的评教方法。利用主成分分析法找出影响评教结果的主要指标,再利用所得的指标进行二次评教。结果表明,评教数据的克伦巴赫信度系数得到提高。因此依据评教数据的主成分进行二次评教可以作为一种更为合理的改进评教的方法。In order to improve the traditional teaching assessment method, analyzed the data from teaching assessment system and proposed a more reasonable means. First, find the main indexes that influence the outcome of teaching evaluation by Principal Component Analysis （PCA）.And then, conduct the teaching assessment for the second time using the main indexes from the first step. It turned out that the Cronbach＇s alpha of the teaching assessment data was improved. Therefore, it would be a more ra- tional method to improve the traditional one.

关 键 词：MATLAB α信度系数法 主成分分析法 

分 类 号：G424[文化科学—课程与教学论;文化科学—教育学;文化科学—教育技术学]