5 TABLE OF CONTENTS Declaration i Acknowledgements ii Abstract iii Table of contents iv List of tables and figures vii List of abbreviations viii CHAPTER 1 INTRODUCTION 1 1 1 Rationales of the study 1 1 2 The aims of the study 2 1 3 Research questions 2 1 4 Scope of the study 3 1 5 Methods of the study 3 1 6 Significance of the study 3 1 7 Design of the study 3 CHAPTER 2 LITERATUREREVIEW 4 2 1 Introduction 2 2 An overview of motivation 4 2 2 1 Definitions of motivation 4 2 2 2 The role of motiva.