| Acknowledgments | 第3-7页 |
| Abstract | 第7-9页 |
| 摘要 | 第10-22页 |
| Chapter One Introduction | 第22-30页 |
| Background of the Study | 第22-26页 |
| Objective of the Study | 第26-27页 |
| Significance of the Study | 第27页 |
| Scope of the study | 第27-28页 |
| Organization of the Thesis | 第28-30页 |
| Chapter Two Theoretical Background | 第30-43页 |
| Collaborative Learning and Processes Writing | 第30-32页 |
| Vygotsky's Social Constructivist Theory | 第32-34页 |
| Cognitive Load Theory | 第34-37页 |
| Long's Interaction Hypothesis | 第37页 |
| The Integration of the Theories and the Effects of Collaborative Writing on | 第37-40页 |
| L2 learners' writing Performance | 第40-41页 |
| Summary | 第41-43页 |
| Chapter Three Literature Review | 第43-55页 |
| Previous Research Abroad | 第43-49页 |
| Research on the Effects of Collaborative Learning on Learners' Performance | 第44-47页 |
| Research on L2 Learner's Attitudes towards Collaborative Writing | 第47-49页 |
| Previous Research at Home | 第49-51页 |
| Strengths and Weaknesses of Previous Studies | 第51-52页 |
| Strengths | 第51页 |
| Weaknesses | 第51-52页 |
| Originality of this Study | 第52-53页 |
| Summary | 第53-55页 |
| Chapter Four Method | 第55-75页 |
| Research Questions and Hypotheses | 第55-57页 |
| Experimental Design | 第57-64页 |
| Experiment | 第57-60页 |
| Pilot Study | 第60-61页 |
| Variables | 第61-63页 |
| Treatment of the Groups | 第63-64页 |
| Operation of Research Questions and Hypotheses | 第64-65页 |
| Experimental Procedures | 第65-67页 |
| Participants | 第67-69页 |
| Writing Materials | 第69-70页 |
| Testing Instruments | 第70-74页 |
| English Writing Tests | 第70页 |
| Questionnaire | 第70-71页 |
| Data Collection and Analysis Method | 第71-74页 |
| Data Collection | 第71页 |
| Scoring for Pretest and Posttest Writing | 第71-72页 |
| Analytical Methods | 第72-74页 |
| Summary | 第74-75页 |
| Chapter Five Results and Discussion | 第75-98页 |
| Results of Research Question One | 第75-78页 |
| Results of Research Question Two | 第78-82页 |
| Results of Research Question Three | 第82-86页 |
| Discussions | 第86-97页 |
| Discussions of Hypotheses One and Two | 第88-95页 |
| Discussions of Hypothesis Three | 第95-97页 |
| Summary | 第97-98页 |
| Chapter Six Conclusions | 第98-104页 |
| Major Findings | 第98-100页 |
| Implications of the Study | 第100-101页 |
| Limitations of the Study and Recommendations for Future Study | 第101-104页 |
| References | 第104-115页 |
| Appendices | 第115-122页 |
| Appendix A Writing Material for the Pilot Study | 第115-116页 |
| Appendix B Writing Materials for the Pretest and Posttest | 第116-117页 |
| Appendix C The Writing Materials for the Experiment | 第117-118页 |
| Appendix D Scales of the Composition | 第118-120页 |
| Appendix E Questionnaires for the Experimental Group | 第120-122页 |
| Publications of the Author | 第122页 |
