Exam paper method and device based on test item correlation

Abstract

The invention discloses a method and a device for producing test papers based on the correlation of test questions. The method includes: 1) Calculate the difficulty of each test question and the correlation of all test question pairs according to the user's previous answer records in the question bank; 2) Establish a correlation matrix; 3) According to the number of knowledge points in the question bank and the total number of questions in the test, Calculate the number of questions that should be allocated to each knowledge point; 4) Determine the number of questions that should be allocated in each difficulty range according to the difficulty distribution of the test paper and the total number of questions in the test paper; 5) Establish the test question map according to the correlation matrix; 6) According to the test question map, get The lowest correlation queue corresponding to each knowledge point; 7) Using the rotation strategy, select the vertices in the lowest correlation queue corresponding to each knowledge point in turn until the number of questions required for the paper is reached. The device includes: a difficulty calculation module, a correlation calculation module, a matrix establishment module, an extraction module and a volume output module. The invention helps to improve computer-aided teaching, utilizes big data, and realizes remote and automatic teaching.

Description

technical field [0001] The invention relates to the field of automatic paper output research, in particular to a method and device for paper output based on the correlation of test questions. Background technique [0002] With the rapid development of computer technology and its continuous deepening in the field of educational informatization, the use of computer and automation technology to assist teaching has a huge role in promoting today's education and teaching reform. In daily teaching, examinations are still the main way to test students' ability to master knowledge, and the main form of examinations is still in the form of test papers. The traditional test papers are collected and selected by the question maker according to their own knowledge, experience and style, and the test questions are compiled. Although the validity and credibility of the test questions are high, human factors will lead to narrowing of the knowledge covered by the test paper, incomplete test...

AI Technical Summary

Problems solved by technology

However, the selection of test questions by these methods of making papers is carried out separately. In fact, there is a certain correlation between the test questions. Because the correlation between the test questions is not considered, there are too many test questions of the same knowledge point, and the test questions of other knowledge points are not. In addition, artificially distinguishing knowledge points through knowledge point chapters or learning points will make the classification not detailed enough, and it is difficult to find subtle differences between test questions, resulting in more similar test questions in the final test paper and fewer test points

Images