重述是外語教師常用以矯正學生錯誤發音之教學策略。然而，過往研究多著重於探討重述對學習者第二外語之吸收與自我修正，少有研究探討重述對學生的整體英語口說表現、口說自我效能、口說焦慮影響及學生對矯正性回饋之偏好。有鑑於此，本研究旨在探究重述對學生整體英語口說表現、口說自我效能、口說焦慮之影響及學生對矯正性回饋之偏好。
本研究採用Lee (2017) 之矯正性回饋迴圈模式進行十四週之教學，參與對象為四十名英語程度初級，修習職場英文之大三學生。本研究蒐集之資料包含: 一、學生之博思英語測驗分數。二、口說自我效能及焦慮之問卷前、後測。三、四份課堂口說作業之前、後測分數。四、學生對矯正性回饋之偏好問卷。參與者須實踐博思英語能力測驗、四份職場英語口說作業、口說自我效能、口說焦慮之前、後測及對矯正性回饋之偏好問卷。於十四週學習期間，助教以錄音形式給予學生重述性回饋。研究分析採用SPSS軟體，並以描述性統計資料及成對樣本檢定來評估重述對學生口說表現、自我效能及焦慮之影響。
研究結果顯示，雖然重述對學生整體英語口說表現及口說自我效能有明顯助益，但學生口說焦慮程度有明顯增加。在矯正性回饋之偏好方面，初級英語程度學生普遍喜好立即及隱性回饋。文末亦提供相關教學啟示及對未來研究之建議。

Recast is a common teaching strategy that foreign language teachers employ to correct students’ erroneous utterances. While most previous studies centered on whether recasts contributed to learners’ responses (i.e. uptake and repair) in second language (L2), very little attention has been paid to its impacts on learners’ overall speaking performance, speaking self-efficacy, anxiety, and students’ preferences for corrective feedback (CF). Therefore, this study aimed to investigate the impacts of recasts on EFL college students’ speaking performance, speaking self-efficacy, speaking anxiety, and preferences for CF.
Based on Lee’s (2017) Corrective Feedback Loop (CFL) model, forty non-English major college juniors at the beginning level recruited from a Workplace English course participated in the current study. Data collected included (1) students’ BULATS scores, (2) pretest and posttest of speaking self-efficacy and anxiety, (3) students’ pretest and posttest scores of four speaking tasks, and (4) a questionnaire of students’ preferences for corrective feedback. Throughout 14 weeks, students were required to complete four speaking tasks related to workplace as assignments and filled in the pretest and posttest questionnaires of speaking self-efficacy, speaking anxiety, and preferences for CF. Recasts were provided by teaching assistants via voice-recordings after each task. Paired sample t-tests and descriptive statistics were conducted to evaluate the impacts of recasts on students’ speaking self-efficacy, anxiety, and preferences for CF.
The findings revealed that after the provision of recasts, students’ overall speaking performance and speaking self-efficacy had significantly progressed. However, students’ speaking anxiety level also raised after receiving recasts. With regard to students’ preferences for CF, students at the beginning level preferred immediate and implicit CF. Pedagogical implications and suggestions for future research are also provided.

摘要 i
ABSTRACT ii
ACKNOWLEDGEMENTS iv
TABLE OF CONTENTS vi
LIST OF TABLES ix
LIST OF FIGURES xi
CHAPTER ONE INTRODUCTION 1
1.1 Research Background 1
1.2 Statement of Problems 5
1.3 Purpose of Study and Research Questions 6
1.4 Significance of the Study 7
1.5 Definition of Terms 8
1.6 Organization of This Study 9
CHAPTER TWO LITERATURE REVIEW 11
2.1 Oral Corrective Feedback 11
2.1.1 Definitions of Oral Corrective Feedback 11
2.1.2 Historical Perspectives on Oral Corrective Feedback 12
2.1.3 Theoretical Perspectives on Oral Corrective Feedback 12
2.1.4 Controversies Over Oral Corrective Feedback 14
2.1.5 The Pedagogical Perspective of Oral Corrective Feedback 14
2.1.6 Taxonomies of Oral Corrective Feedback 15
2.1.7 Studies Related to Oral Corrective Feedback 18
2.2 Recasts 22
2.2.1 Definitions of Recasts 22
2.2.2 Characteristics of Recasts 23
2.2.3 Theoretical Perspectives on Recasts 24
2.3 Efficacy of Recasts on Learners’ Affective Factors in SLA 26
2.3.1 Self-Efficacy 27
2.3.2 Studies Related to Recasts and Speaking Self-Efficacy 30
2.3.3 Foreign Language Speaking Anxiety 31
2.3.4 Studies Related to Recasts and Foreign Language Speaking Anxiety 32
CHAPTER THREE METHODOLOGY 35
3.1 Participants 35
3.2 Course Design 36
3.3 Instruction 37
3.4 Instruments 39
3.4.1 BULATS Online Speaking Test 39
3.4.2 Speaking Rubric 40
3.4.3 Questionnaire of English Self-Efficacy (QESE) 42
3.4.4 Anxiety Questionnaire 44
3.4.5 Students’ Preferences for Corrective Feedback (CF) 46
3.4.6 Four Speaking Tasks Related to Workplace 47
3.5 Scoring Procedure 49
3.6 Data Collection Procedure 49
3.7 Data Analysis 51
CHAPTER FOUR RESULTS 53
4.1 Results for Research Question 1 53
4.2 Results for Research Question 2 55
4.3 Results for Research Question 3 57
4.4 Results for Research Question 4 59
CHAPTER FIVE DISCUSSION AND CONCLUSION 62
5.1 Discussion of the Results 62
5.2 Pedagogical Implications 65
5.3 Limitations of the Study 65
5.4 Suggestions for Future Research 66
REFERENCES 67
APPENDICES 77
Appendix A The Example Test Format of BULATS Speaking Test 77
Appendix B BULATS Online Speaking Assessment Criteria: Parts 1, 3, 4 & 5 79
Appendix C The Rubric of BULATS Listening and Reading Tests 82
Appendix D The Modified Speaking Rubric for the Current Study 83
Appendix E Questionnaire of English Self-Efficacy (QESE) 86
Appendix F Anxiety Questionnaire 88
Appendix G Students’ Preferences for Corrective Feedback Questionnaire 90

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