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Psychometric Properties of Student Evaluation of Teachers’ Performance Scale: Evidence from Debre Markos University Students’ Evaluation Dataset
Education Research International Pub Date : 2021-07-05 , DOI: 10.1155/2021/5543317
Muluye Getie Ayaneh 1 , Askalemariam Adamu Dessie 2 , Dimetros Molla Fetene 3
Affiliation  

Introduction. Student evaluation of teachers’ effectiveness is one of the most common tools used as a measure of teaching performance and accountability by various universities across the globe. The major purpose of this study was to evaluate the validity and underlying structure of students’ evaluation of the higher education teaching effectiveness scale used by all public universities in Ethiopia. Methodology. Data collected from 1397 students at Debe Markos University were used for this analysis. Cronbach’s alpha values and average interitem correlation were used to study the internal consistency reliability of the scale. Composite reliability, average variance extracted, hetero trait-mono-trait ratio, maximum shared variance, average shared variance, and interconstruct correlations were used to assess the construct validity of the scale, and exploratory factor analysis and confirmatory factor analysis were performed with 20 items to test the hypothesis which introduced a four-dimensional construct for teachers’ evaluation scale. We used different goodness-of-fit indices to measure the fit of the models. Results. The scale was shown to have good internal consistency and convergent validity but lacked discriminant validity. Furthermore, confirmatory factor analysis indicated that the four-factor model produced inadequate fit indices, revealing that the original factor structure of the scale changed. Conclusions. The results showed that Student Evaluation of Teaching Effectiveness did not measure what it was supposed to be measuring. Moreover, the exploratory factor analysis and confirmatory factor analysis results indicate that a two-dimensional model is better than the four-dimensional model to explain the data structure, which places limitations on its use.

中文翻译:

教师绩效量表学生评价的心理测量特性:来自德布雷马科斯大学学生评价数据集的证据

介绍。学生对教师效率的评估是全球各大学用来衡量教学绩效和问责制的最常用工具之一。本研究的主要目的是评估埃塞俄比亚所有公立大学使用的高等教育教学有效性量表的学生评价的有效性和基础结构。方法. 从 Debe Markos 大学收集的 1397 名学生的数据用于此分析。Cronbach's alpha 值和平均项目间相关性被用来研究量表的内部一致性信度。综合信度、提取平均方差、异性单性状比、最大共享方差、平均共享方差和结构间相关性用于评估量表的结构效度,并对20个项目进行探索性因素分析和验证性因素分析检验引入教师评价量表四维结构的假设。我们使用不同的拟合优度指数来衡量模型的拟合度。结果. 该量表具有良好的内部一致性和收敛效度,但缺乏区分效度。此外,验证性因子分析表明,四因子模型产生的拟合指数不足,表明量表的原始因子结构发生了变化。结论。结果表明,学生对教学效果的评价并没有衡量它应该衡量的东西。而且,探索性因子分析和验证性因子分析结果表明,二维模型比四维模型更好地解释数据结构,这限制了其使用。
更新日期:2021-07-05
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