| Acknowledgements | 第1-9页 |
| List of Tables and Figures | 第9-11页 |
| Abstract | 第11-13页 |
| 摘要 | 第13-15页 |
| Chapter One Introduction | 第15-19页 |
| ·Research orientation | 第15-16页 |
| ·Rationale for the research | 第16-18页 |
| ·Organization of the thesis | 第18-19页 |
| Chapter Two Self-Concept and the Length Approach: A Review | 第19-34页 |
| ·Theoretical perspectives on self-concept | 第19-22页 |
| ·Definitions of self-concept | 第19-20页 |
| ·Characteristics of self-concept | 第20-21页 |
| ·William James' theory of self-concept | 第21-22页 |
| ·Structures of self-concept | 第22-24页 |
| ·Unidimensional model of self-concept | 第22页 |
| ·Multidimensional and hierarchical model | 第22-24页 |
| ·Problems of unidimensional model | 第22-23页 |
| ·Shavelson's self-concept model | 第23页 |
| ·Bracken's Multidimensional Self Concept Scale | 第23-24页 |
| ·Measurement for self-concept | 第24-25页 |
| ·Various measures in the early stage | 第24-25页 |
| ·Marsh's self-concept instruments | 第25页 |
| ·Self-Description Questionnaire II | 第25页 |
| ·Academic Self-Description Questionnaire II | 第25页 |
| ·Research on academic self-concept | 第25-30页 |
| ·Academic self-concept: Definition | 第26页 |
| ·Multidimensionality of academic self-concept | 第26-27页 |
| ·Academic self-concept and academic achievement | 第27-28页 |
| ·An overview of research on English academic self-concept | 第28-30页 |
| ·Research abroad | 第28-29页 |
| ·Research in China | 第29-30页 |
| ·The Length Approach: An overview | 第30-33页 |
| ·Theoretical basis: Swain's Output Hypothesis | 第30-31页 |
| ·Essentials of the Length Approach | 第31-32页 |
| ·Research on the Length Approach | 第32页 |
| ·Research on the relationship between self-concept and writing | 第32-33页 |
| ·Limitations of previous studies | 第33-34页 |
| Chapter Three Research Question, Hypothesis, and Method | 第34-48页 |
| ·Research question and hypothesis | 第34-35页 |
| ·Method | 第35-48页 |
| ·Subjects | 第35-36页 |
| ·Materials | 第36-40页 |
| ·Structure of SEWS | 第36-37页 |
| ·Development of SEWS | 第37-38页 |
| ·Reliability and validity of SEWS | 第38-39页 |
| ·Administration of SEWS | 第39-40页 |
| ·Procedure | 第40-46页 |
| ·Pretest | 第40-41页 |
| ·Teaching activities | 第41-45页 |
| ·Posttest | 第45-46页 |
| ·Methods for data elicitation and analysis | 第46-48页 |
| ·Data elicitation methods | 第46-47页 |
| ·Statistic analysis methods | 第47-48页 |
| Chapter Four Results and Discussion | 第48-64页 |
| ·Results | 第48-62页 |
| ·Results of the pretest | 第48-53页 |
| ·Results of the posttest | 第53-62页 |
| ·Discussion | 第62-64页 |
| Chapter Five Conclusion | 第64-71页 |
| ·Findings | 第64-67页 |
| ·Role of self-concept in writing | 第64-65页 |
| ·Influence of the Length Approach on students' writing | 第65-67页 |
| ·Implications | 第67-69页 |
| ·Limitations | 第69-71页 |
| References | 第71-76页 |
| Appendix A A Survey on English Writing Self-concept (SEWS) | 第76-78页 |
| Appendix B Pre-training Writing Test | 第78-79页 |
| Appendix C Post-training Writing Test | 第79-80页 |
| Appendix D Criteria of Scoring Compositions in TEM-8 | 第80-82页 |
| Appendix E Subjects' Scores in English Writing Pretest | 第82-83页 |
| Appendix F Subjects' Scores in English Writing Posttest | 第83-84页 |
| Appendix G Raw Data of Self-concept in English Writing Pretest | 第84-88页 |
| Appendix H Raw Data of Self-concept in English Writing Posttest | 第88-92页 |
| Appendix I Z Scores of Subjects in English Writing Posttest and Post-training Self-concept Survey | 第92页 |
