¼ÆËã»ú×ÔÊÊÓ¦Ó¢ÓïÄÜÁ¦²âÊÔϵͳÉè¼ÆÓëЧ¶ÈÑéÖ¤

List of Symbols and Abbreviations
Chapter 1 Introduction
1£®1 Research Background
1£®2 Research Objective
1£®3 Research Questions
1£®4 Research Methods

Chapter 2 Literature Review
2£®1 Item Response Theory
2£®1£®1 History ofIRT
2£®1£®2 Basic Assumptions of IRT
2£®1£®3 Dichotomous IRT Models
2£®1£®4 Polytomous IRT models
2£®1£®5 A Comparison between IRT and CTT
2£®2 Computerized Adaptive Testing
2£®2£®1 Introduction
2£®2£®2 Working Procedure
2£®2£®3 IRT Model
2£®2£®4 Item Pool
2£®2£®5 Item Selection
2£®2£®6 Ability Estimation
2£®2£®7 Stopping Rule
2£®3 Validation of both PPLT and CALT
2£®3£®1 PreviouS Research on Test Validation
2£®3£®2 New AUA Framework
2£®4 Current Research on CALT
2£®4£®1 Studies Abroad
2£®4£®2 Domestic Studies
2£®5 Implication for This Study

Chapter 3 Item Bank Construction
3£®1 Introduction
3£®2 Methods
3£®2£®1 Original Data Analysis
3£®2£®2 Instruments
3£®2£®3 Procedures
3£®2£®4 Data Analysis
3£®3 Results and Discussions
3£®3£®1 Uni-dimensionality Assumption
3£®3£®2 Local Independence Assumption
3£®3£®3 Item Calibration
3£®3£®4 DIF Analysis
3£®3£®5 Resuhs for Item Bank Distribution
3£®3£®6 Discussion under the AUA Framework
3£®4 Conclusion

Chapter 4 Design£¬ Operation and Validation of a CALT System
4£®1 Introduction
4£®2 Methods
4£®2£®1 CALT Design Overview
4£®2£®2 Participants
4£®2£®3 Instruments
4£®2£®4 Procedures
4£®2£®5 Data Analyses
4£®3 Results and Discussions
4£®3£®1 Construct Measured by the CALT and CBLT
4£®3£®2 Influence of Computer Familiarity
4£®3£®3 Factorial Invariance of the CALT across Gender
4£®4 Discussion in the Context of the AUA
4£®5 Conclusion

Chapter 5 Conclusions
5£®1 Findings
5£®2 Implications
5£®2£®1 Theoretical Implications
5£®2£®2 Practical Implications
5£®3 Suggestions for Future Research

References
Appendix 1
A sample paper of the Computer-based English proficiency test
Part ¢ñ Cloze
Part ¢ò Grammar Multiple Choice
Part ¢ó Vocabulary Multiple Choice

Appendix 2
A sample score report of the Computer¡ªadaptive English proficiency test
¿¼ÊԳɼ¨±¨¸æ
·ÖÊý½âÊÍ
Appendix 3
Appendix 4