本研究探討英文字幕與中文字幕對臺灣英語為外語學習者在聽力理解與字彙習得方面的影響。參與者為 60 位英語程度為中等的大學一年級學生，分為兩組：一組觀看帶有英文字幕的影片，另一組則觀看帶有中文字幕的影片。研究採用混合方法，結合聽力測驗、字彙測驗及學習態度問卷。
研究結果顯示，在聽力理解方面，觀看中文字幕的學生表現優於英文字幕組，特別是在面對語速快或生字多的內容時。相對地，英文字幕組在字彙習得上顯著優於中文字幕組，有助於加強學習者對單字的拼字與語意理解。兩組學習者皆對字幕使用表現出正面態度，其中中文字幕提升了學習信心與動機，而英文字幕則有助於單字辨識與內容理解。研究建議教師可依據學習者的語言程度與教學目標，靈活運用字幕作為輔助工具，初期使用中文字幕協助理解，進階階段則轉向英文字幕以強化語言輸入與學習成效。 

 This study investigates the effects of English captions and Chinese subtitles on the listening comprehension and vocabulary acquisition of Taiwanese EFL learners. Sixty university freshmen with intermediate English proficiency participated in the study and were divided into two groups: one watched video with English captions, and the other with Chinese subtitles. A mixed-methods approach was adopted, combining listening and vocabulary tests with attitude questionnaires. Results showed that learners who watched videos with Chinese subtitles outperformed those who used English captions in listening comprehension, especially when encountering fast speech or unfamiliar vocabulary. Conversely, English captions significantly enhanced vocabulary acquisition by reinforcing the connection between spoken and written English. Learners expressed generally positive attitudes toward both types of subtitles. Chinese subtitles boosted confidence and motivation, while English captions supported vocabulary recognition and content understanding.  The findings suggest that Chinese subtitles serve as effective scaffolding for comprehension, whereas English captions promote vocabulary development. 

LIST OF CONTENTS	v
LIST OF FIGURES	viii
LIST OF TABLES	ix
CHAPTER ONE Introduction	1
1.1 Background of the Study	1
1.2 Purpose of the Study	2
1.3 Definition of Terms	3
1.4 Significance of the Study	4
CHAPTER TWO Literature Review	5
2.1. The Effects of Multimedia Learning on Listening Comprehension	5
2.1.1 From Audio Tracks to Multimedia	5
2.1.2 Effective Multimedia Design for EFL Listening Instruction	7
2.2 The Effects of Captioning and Subtitling on Listening Comprehension	8
2.2.1 Captioning on Listening Comprehension	8
2.2.2 Subtitling on Listening Comprehension	10
2.2.3 Mixed Results on Listening Comprehension	12
2.2.4 Comparative Efficacy of Captions and Subtitles	14
2.3 Attitude towards Using Captioning and Subtitling on Listening Comprehension	17
2.3.1 Attitudes Toward Textual Support	17
2.3.2 Perceptions by Proficiency Level	19
2.4 The Effects of Captioning and Subtitling on Vocabulary Learning	20
CHAPTER THREE Methodology	25
3.1 Participants	25
3.2 Material	27
3.3 Instruments	28
3.3.1 Listening comprehension test	28
3.3.2 Vocabulary test	29
3.3.3 Questionnaires	30
3.4 Procedures	31
PILOT STUDY	33
CHAPTER FOUR Results	34
4.1 Chinese and English Subtitles Help Listening Comprehension	34
4.2 Better Vocabulary Learning with English Captions and Chinese Subtitles	37
4.3 Students’ attitudes toward using English captions	40
4.4 Students’ attitudes toward using Chinese subtitles	43
CHAPTER FIVE Discussion	46
5.1 Summary	46
5.2 Discussions of the results	47
5.2.1 Chinese Subtitles Likely to Have Aided Listening Comprehension	47
5.2.2 English Captions Likely More Beneficial to Vocabulary Learning	50
5.2.3 Students’ Positive Attitudes Toward Using English Captions	53
5.2.4 Students’ Receptive Attitudes Toward Using Chinese Subtitles	55
CHAPTER SIX Conclusion	59
6.1 Summary	59
6.2 Limitations	60
6.3 Pedagogical Implications	61
6.4 Conclusion	64
REFERENCES	66
APPENDIX A Background Information	77
APPENDIX B Video script	78
APPENDIX C Video script	82
APPENDIX D Video script	86
APPENDIX E Listening Comprehension and Vocabulary Test	93
APPENDIX F English Captions Questionnaire	98
APPENDIX G Chinese Subtitle Questionnaire	99










 
LIST OF FIGURES
Figure 3.1 Procedure	32

 
LIST OF TABLES
Table 3.1 Demographic Information of the Participants	25
Table 3.2 Participants’ Proficiency Level, Age, and Mother Tongue	26
Table 4.1 Independent-Samples t-test for Listening Pretest Scores	35
Table 4.2 Independent-Samples t-test for Listening Posttest Scores	36
Table 4.3 Independent-Samples t-test for Vocabulary Pre-test Scores	37
Table 4.4 Independent-Samples t-test for Vocabulary Posttest Scores	39
Table 4.5 Descriptive Statistics of the English Captions Questionnaire	41
Table 4.6 Descriptive Statistics of the Chinese Subtitles Questionnaire	43

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