Study on the Application of Item Response Theory in E-learning

Based on computer network, e-learning possess remarkable features of Internet technologies. It is very helpful for us to take advantage of Item Response Theory, or IRT, in the field, and to promote educational quality. By analyzing current achievements of IRT research, this study proposes the scheme of applying IRT to examination system in e-learning, including it's model, parameter estimation and test flow. Meanwhile, this study will also dis- cuss the theory in different practical situations, and make contribution to the development of IRT.