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Trang 1 BINH DUONG PROVINCIAL PEOPLE’S COMMITTEE THU DAU MOT UNIVERSITY LE THI HANH THE EFFECTS OF QUIZLET APPLICATION ON IMPROVING STUDENTS’ VOCABULARY: A CASE STUDY OF SECONDARY SCHOOL
BINH DUONG PROVINCIAL PEOPLE’S COMMITTEE THU DAU MOT UNIVERSITY LE THI HANH THE EFFECTS OF QUIZLET APPLICATION ON IMPROVING STUDENTS’ VOCABULARY: A CASE STUDY OF SECONDARY SCHOOLS IN BINH DUONG PROVINCE MAJOR: ENGLISH LANGUAGE MAJOR CODE: 8220201 MASTER THESIS IN ENGLISH LANGUAGE BINH DUONG PROVINCE, 2023 BINH DUONG PROVINCIAL PEOPLE’S COMMITTEE THU DAU MOT UNIVERSITY LE THI HANH THE EFFECTS OF QUIZLET APPLICATION ON IMPROVING STUDENTS’ VOCABULARY: A CASE STUDY OF SECONDARY SCHOOLS IN BINH DUONG PROVINCE MAJOR: ENGLISH LANGUAGE MAJOR CODE: 8220201 MASTER THESIS IN ENGLISH LANGUAGE SUPERVISORS: NGUYEN THI THANH TAM, Ph.D TRAN THANH DU, Ph.D BINH DUONG PROVINCE, 2023 ACKNOWLEDGEMENTS I express my sincere gratitude to everyone who helped me finish my research because it would not have been possible without their helpful advice, inspiration, and support Firstly, I am grateful to Doctor Nguyen Thi Thanh Tam and Doctor Tran Thanh Du for spending much time instructing, advising, and commenting on my thesis Secondly, I thank a great deal to the principals, the vice-principals, the leaders, the colleagues, the students, and the staff at the secondary schools in the province of Binh Duong They gave me helpful advice and were fantastic support while I labored to finish my thesis Thirdly, I thank Thu Dau Mot University, the post-graduate institution's staff, and class CH21AV01 of Thu Dau Mot University while I was studying Finally, I want to express my sincere gratitude to my family They helped me out and made sacrifices while I was conducting the research Binh Duong, December 2023 Le Thi Hanh i STATEMENT OF ORIGINALITY I certify that this thesis entitled “THE EFFECTS OF QUIZLET APPLICATION ON IMPROVING STUDENTS’ VOCABULARY: A CASE STUDY OF SECONDARY SCHOOLS IN BINH DUONG PROVINCE” is my work While conducting this thesis, no application for a degree or diploma from any other academic institution was made Binh Duong, December 2023 Le Thi Hanh ii TABLE OF CONTENT ACKNOWLEDGEMENTS i STATEMENT OF ORIGINALITY ii TABLE OF CONTENT iii LIST OF TABLES vi LIST OF FIGURES vii LIST OF ABBREVIATIONS viii ABSTRACT ix CHAPTER 1: INTRODUCTION 1.1 Background to The Study 1.2 Aims of the Study 1.3 Research Questions 1.4 Scope of the Study 1.5 Significance of the Study 1.6 Organization of the Study CHAPTER LITERATURE REVIEW 2.1 Overview of Vocabulary 2.1.1 Definition of Vocabulary 2.1.2 Types of Vocabulary 2.1.3 Vocabulary Learning Strategies 2.1.4 Teaching and Learning Vocabulary 10 2.1 Overview of the Quizlet 13 2.1.1 Definitions of Quizlet 13 2.1.2 Features on Quizlet 14 2.1.3 Quizlet in Teaching and Learning Vocabulary 16 2.1.4 Advantages and Disadvantages of Quizlet 17 2.2 Computer-Assisted Language Learning and Mobile-assisted language learning18 2.2.1 CALL 18 2.2.2 MALL 18 2.3 Previous Studies 19 2.3.1 Studies in the Word 19 2.3.2 Studies in Vietnam 20 2.4 Conceptual Framework of the Study 21 Summary 22 CHAPTER METHODOLOGY 23 iii 3.1 Research Design 23 3.2 Setting and Sampling 24 3.2.1 Pedagogical Setting 24 3.2.2 Participants 25 3.2.3 Teaching Materials 25 3.3 Research Instruments 26 3.3.1 Students’ Questionnaire 26 3.3.2 Interviews 27 3.3.3 Test 28 3.4 Data analysis 29 3.5 Research procedures 29 3.6 Ethical Considerations 30 Summary 31 CHAPTER 4: FINDINGS AND DISCUSSION 32 4.1 Results from the Questionnaire 32 4.1.1 Part Students’ Personal Information and Experience 32 4.1.2 Part Students’ Attitude toward using Quizlet in learning English Vocabulary 38 4.2 Results from the Interviews 41 4.2.1 Interview with the Teachers 41 4.2.2 Interview with the Students 45 4.3 Results from the Tests 47 4.4 Discussion 54 Summary 57 CHAPTER 5: CONCLUSIONS, IMPLICATIONS, AND SUGGESTIONS 58 5.1 Conclusions 58 5.2 Implications 59 5.3 Suggestions 60 5.4 Limitations 61 REFERENCES 62 APPENDICES 67 APPENDIX 1: STUDENTS’ QUESTIONNAIRE 67 APPENDIX 2: INTERVIEW’S TEACHERS 70 APPENDIX 3: INTERVIEW’S STUDENTS 72 APPENDIX 4: PRETEST 74 APPENDIX 5: POSTTEST 76 iv APPENDIX 6: THE SCORE OF PRETESTS 79 APPENDIX 7: THE SCORE OF POSTTESTS 81 APPENDIX 8: LESSON PLANS 83 APPENDIX 9: PICTURES FROM QUZLET 94 APPENDIX 10: APPLICATION FROM CVLSC AND NTB SC 97 v LIST OF TABLES Table 2.1.2 Description of Quizlet Apps’ modes of learning 14 Table 2.1.4 Advantages and disadvantages of Quizlet 17 Table 3.1 Research design of the study 24 Table 4.1.2.1 Reliability Statistics for the questionnaires 38 Table 4.1.2.2 Descriptive statistics for the questionnaires 38 Table 4.2.2.3 The frequency and percentage of students when using 41 Quizlet in learning vocabulary English Table 4.3.1 Reliability Statistics for the pretest between NTB SC and 47 CVL SC Table 4.3.2 Descriptive statistics for the pretest between NTB SC and 48 CVL SC Table 4.3.3 Descriptive statistics for the pretest between NTB SC and 50 CVL SC Table 4.3.4 Descriptive statistics for the pretest between NTB SC and 50 CVL SC Table 4.3.5 A comparison the score of NTB SC and CVL SC 52 Table 4.3.6 The pair sample T-test between NTB SC and CVL SC 52 Table 4.3.7 The frequency of score between NTB SC and CVL SC 53 vi LIST OF FIGURES Figure 2.1.2 Quizlet site map 14 Figure 2.4 Conceptual framework 22 Figure 3.5 The data collected procedure 29 Figure 4.1.1.1 The essential of learning English 32 Figure 4.1.1.2 Years of learning English 33 Figure 4.1.1.3 The most challenging learning English 34 Figure 4.1.1.4 Favorite learning vocabulary technique 35 Figure 4.1.1.5 Aspect of learning vocabulary 35 Figure 4.1.1.6 Importance of learning English 36 Figure 4.1.1.7 The way teachers frequently use technology in the classroom 37 Figure 4.3.1 The mean score of pre-tests between NTB SC and CVL SC 49 Figure 4.3.2 The mean score of post-tests between NTB SC and CVL SC 51 vii LIST OF ABBREVIATIONS EFL : English as Foreign Language CALL : Computer-assisted language learning MALL : Mobile-assisted language learning NTB SC : Nguyễn Thái Bình secondary school CVL SC : Châu Văn Liêm secondary school viii