3.3 Instruments .........................................................................................................30
3.3.1 Breadth of Vocabulary Knowledge Test ...................................................30
3.3.2 Depth of Vocabulary Knowledge Test ..................................................... 31
3.3.3 The L2 Language Proficiency Test.......................................................... 31
3.4 Data Collection .................................................................................................. 32
3.5 Data Analysis ..................................................................................................... 32
Chapter Four Results and Discussion.................................................................... 33
4.1 Results ................................................................................................................33
4.1.1 Descriptive Statistics of VLT ................................................................... 33
4.1.2 Descriptive Statistics of DVK ..................................................................34
4.1.3 Descriptive Statistics of the Language Proficiency Test ..........................35
4.2. The Correlation Analysis .................................................................................. 36
4.3 The Regression Analysis ....................................................................................38
4.3.1 The Language Proficiency and the Vocabulary Breadth ..........................38
4.3.2 The Language Proficiency and the Vocabulary Depth .............................40
4.3.3 The Vocabulary Breadth and the Vocabulary Depth................................ 43
4.3.4 Summary of Regression Analysis ............................................................ 44
4.4 One-Way ANOVA Analysis ..............................................................................46
4.4.1 The Language Proficiency and the Vocabulary Breadth ..........................46
4.4.2 The Language Proficiency and the Vocabulary Depth .............................48
4.5 Discussion .......................................................................................................... 50
Chapter Five Conclusion, Implications & Limitations...........................................55
5.1 Conclusion ......................................................................................................... 55
5.2 Pedagogical Implications ................................................................................... 56
5.2.1 Implication for Learning .......................................................................... 56
5.2.2 Implication for Teaching .......................................................................... 57
5.3 Limitations of the Study .....................................................................................58
5.4 Suggestions for Further Research ...................................................................... 59
List of Abbreviations.....................................................................................................60
List of Tables..................................................................................................................61
List of Figures................................................................................................................61
References...................................................................................................................... 63
Appendix I..................................................................................................................... 67