Research Of Item Bank System Based On Item Response Theory

Item bank system is a computer-aided instruction as an important tool, in distance education, colleges and universities, research institutes, education and training and many other has a wide range of applications. In today's rapid development of Internet technologies, the examination system based on network technology has been rapid development, Item bank system has also been more and more extensive research and application.In recent years, with the development of educational measurement theory to item response theory-based Item bank products gradually got more and more widespread application, Item bank product based on item response theory based on the actual situation of each student, from the item bank for each exam students in the selected level of difficulty of examination questions for them.This article focuses on the current status of based on item response theory products to analyze their main shortcomings, combined with modern educational testing theory, the introduction of item response theory (IRT), and the research is item bank system based on item response theory , trying to overcome inadequate of the item bank of existing products, according to the user in the system manifestations of custom-tailored learning and testing program.The main contents of this paper is item bank system based on item response theory, and system building method and the general framework of realization. Through the study of the paper and can target different students of knowledge to grasp the situation, according to the students in the learning process and performance of the habit of automatically adjust teaching strategies and teaching ideas, formulation of test plans according to local conditions and practice content to meet the ability level of students and learning progress, to improve student learning positively, thereby effectively improve the teaching effect, so that item bank system to better service in teaching.