Research On The Evaluation Rubric Of Educational Data Products

In the era of the big data,educational data is a valuable resource of education.Educational data products can excavate the value of educational data,make full use of the information contained in educational data,and provide a scientific and accurate basis for educational practitioners to make decisions in teaching.However,the market development of educational data products is still in the preliminary stage.The development and operation of the products are lack of supervision.A large number of homogeneous and low-level products rush to the market.It is difficult for schools,teachers and parents to distinguish the advantages and disadvantages of the products.Therefore,it’s necessary to carry in-depth research on making a reasonable evaluation of educational data products,and a scientific,complete and effective evaluation index system should also be formed.This research has carried out systematic and in-depth research on this issue,and has achieved certain results,as follows:(1)By combing the existing research,the definition and classification of educational data products are clarified,and the application advantages of educational data products are summarized.Furthermore,a four corner EDFE model of education data product evaluation is constructed with education,data,function and experience as the core elements.Then,according to the model and related theories,the collected index systems in related fields are classified and summarized.From the 4 aspects of education orientation,data quality,function service and interactive experience,the evaluation index system of education data products is preliminarily established,which includes 4 first level indicators and 35 second level indicators.(2)In order to improve the scientificity and integrity of the index system,this study adopts the multi round Delphi method and invites many experts to score the importance of each index in the preliminary evaluation index system and put forward suggestions.Subsequently,the data analysis software SPSS is used to screen and revise the indicators at all levels according to the threshold standard method until the experts’opinions tend to be consistent.In addition,through the analytic hierarchy process and expert ranking method,the first level index and the second level index are given weight respectively,and finally the evaluation index system of education data products is determined,including 4 first level indexes and 31 second level indexes.(3)Based on the evaluation index system and multi-dimensional index evaluation method,this paper selects a junior high school mathematics group teacher in Henan Province,and adopts the evaluation index system to evaluate the educational data products of a primary and secondary school question bank that have been used for more than one year.Through the analysis of the results of the questionnaire and interviews with teachers,the scientificity and feasibility of the evaluation index system are verified.