Acknowledgements Abstract List of Abbreviations Lisf of Tables List of Figures Chapter 1 Introduction 1.1Language Testing in China 1.2Problems in Current Language Testing 1.3Main Goal of the Research 1.4Determining the Scope of Research 1.5Research Method 1.6Overview of the Dissertation Chapter 2 Computer Technology in Language Testing 2.1Introduction 2.2Characteristics of Computer and the Implications for Testing 2.3The Four Generations of Computerized Educational Measurement 2.3.1Computerized Testing 2.3.2Computerized Adaptive Testing 2.3.3Contiunous Measurement 2.3.4Intelligent Measurement(IM) 2.4Advantages of Using Computers in Language Testing 2.4.1Advantages of Using Computers in Language Testing in General 2.4.2Advantages of Using Computers in Test Administration 2.5Current State of Knowledge of Computers in Language Testing 2.5.1Computer-based English Language Test(CBELT)in Britain 2.5.2Computers in Language Testing in the U.S. 2.6Summary Chapter 3 An Overview of Computerized Adaptive Testing Chapter 4 IRT as the Mathematical Model for CCAT Chapter 5 Cognitive Psychology and Its Implications for Language Testing Chapter 6 An Experimental Study of CCAT Chapter 7 Technical Report of CCAT Chapter 8 Experiments and Results Chapter 9 Conclusion …… Bibliography AppendixI—X