| Abstract | 第1-6页 |
| 中文摘要 | 第6-7页 |
| Table of Contents | 第7-11页 |
| List of Tables | 第11-12页 |
| Chapter Ⅰ Introduction | 第12-17页 |
| ·Overview | 第12页 |
| ·Significance of the problem and rationale for the Study | 第12-14页 |
| ·Purposes of the present study | 第14-15页 |
| ·Outline of the present study | 第15-17页 |
| Chapter Ⅱ Literature Review | 第17-30页 |
| ·Overview | 第17页 |
| ·Ambiguity tolerance and relevant concepts | 第17-21页 |
| ·Cognitive styles | 第17页 |
| ·What is ambiguity tolerance? | 第17-18页 |
| ·The characteristics of ambiguity tolerance and its implications in language learning and testing | 第18-21页 |
| ·Review of literature on test bias | 第21-30页 |
| ·Item bias | 第21-23页 |
| ·Application of the DIF analysis in detecting bias | 第23-24页 |
| ·Methodological implication of using DIF analysis in bias detection | 第24-30页 |
| Chapter Ⅲ Method | 第30-38页 |
| ·Overview | 第30页 |
| ·Theoretical framework | 第30页 |
| ·Research questions | 第30-31页 |
| ·Variables in the present study | 第31页 |
| ·Participants | 第31-33页 |
| ·Test-takers | 第31-32页 |
| ·Expert judges | 第32-33页 |
| ·Instruments | 第33-34页 |
| ·SLTAS —— The adopted instrument for measuring AT in this study | 第33页 |
| ·A proofreading test paper | 第33-34页 |
| ·Procedure | 第34-38页 |
| ·Data collection | 第34-36页 |
| ·Data collection from the SLTAS | 第35页 |
| ·Data collection from the proofreading test and the written protocol | 第35-36页 |
| ·Data collection from expert judgment | 第36页 |
| ·Data analysis | 第36-38页 |
| ·Statistical analyses of the SLTAS and the proofreading test | 第36页 |
| ·Analysis of the data from written protocol | 第36-37页 |
| ·Analyses of the data from expert judgment | 第37-38页 |
| Chapter Ⅳ Results and Discussion | 第38-52页 |
| ·Overview | 第38页 |
| ·Results of the statistical DIF detection procedure | 第38-41页 |
| ·Descriptive statistics for the scores on the SLATS and the proofreading test | 第38-39页 |
| ·Results analysis of the statistical DIF detection procedure | 第39-41页 |
| ·Results analysis of the students' written report data and expert judgments | 第41-45页 |
| ·Students' written protocol data | 第41-44页 |
| ·Result analysis of data from expert judgment | 第44-45页 |
| ·Discussion about clues for possible DIF sources | 第45-48页 |
| ·Possible DIF sources to the disadvantage of LAT students | 第45-47页 |
| ·Possible DIF sources to the disadvantage of HAT students | 第47-48页 |
| ·Overall conclusions about possible item bias | 第48-52页 |
| Chapter Ⅴ Summary | 第52-56页 |
| ·Overview | 第52页 |
| ·Implications | 第52-53页 |
| ·Limitations | 第53-54页 |
| ·Recommendations | 第54-56页 |
| Bibliography | 第56-62页 |
| Appendix | 第62-63页 |
| 发表文章目录 | 第63-64页 |
| Acknowledgements | 第64-66页 |
| 个人简况及联系方式 | 第66页 |
