Research On Examination Analysis Based On Educational Measurement And Visualization Technology

Purpose"Education is the foundation".If a country's education needs development potential,it must pay attention to school education.It must evaluate the school's education and teaching work.This is an important way to guide,diagnose,motivate and identify teaching.It has been widely valued by all countries in the world,and The successful teaching experience of developed countries also tell us that the reasonable and effective evaluation of test papers is an indispensable part of teaching and an important step in the development of education.This study takes 599 students from 12 classes of Beijing University of Chinese Medicine,2014,Basic Medicine College,Chinese Medicine College,Acupuncture and Tuina College,Humanities College,Nursing College and International College as research objects,through the statistical analysis of four sets of papers based on computer application,computer basics,computer basics? and computer basics ?,an examination analysis system based on educational measurement and visualization technology is designed to realize the statistical analysis of the test papers and scores,the word segmentation processing of the test paper knowledge points,The functions of visual analysis of data results,etc.,assist the daily teaching management of the teachers,promote the scientific and standardized purposes of the exam analysis work,and propose suggestions for the quality improvement of the test questions and test papers based on the analysis results.I hope to provide data support and theoretical reference for the school's examination analysis work.MethodIt mainly uses the literature research method and the information research method to collect and comb the research and reports on the content of education measurement and test analysis system design at domestic and abroad,and supplement the visual design content with webpage retrieval.Use Access 2016 database to import data and calculate the standard scores,reliability,validity,difficulty,discrimination and other statistical indicators of test papers and test questions,and then use Python and TFIDF algorithm to segment the words and keywords,and sort out the test knowledge points.Finally,using Power BI for visual analysis design and publishing visual reports,it can share report results in real time via QR code or web page.Results and conclusionsTaking the computer course of Beijing University of Traditional Chinese Medicine as an example,this study basically completed the design of the test analysis system based on educational measurement and visualization technology,and realized the organization and management of several dimensions of students,classes,teachers,courses,test questions and test papers.The statistical calculation of various indicators related to the examination is realized,and the visual report design of the data information is realized.Through the analysis and visual display of the indicators and test papers,this study can help teachers simplify the more cumbersome examination analysis,improve the efficiency of teachers,improve the quality of teaching and the quality of examinations.Provide different types of visual reports for different users,enhance the space for collaborative communication,and promote the scientific and standardized test analysis work.Both theoretical and technical aspects are feasible and have good practical results.