Study………………………………………..….6 1.4. Research Questions of the Study  …………………………………………..……7 1.5. Hypotheses of the Study…………………………………………….……………7 1.6. Definitions of Key Terms………………………………………………….….….8 1.6.1.Collocation………………………………………………………………………8 1.6.2. Noticing………………………………………………………….…….…….…8 1.6.3. Reformulation …………………………………………………..………….…..8 1.6.4. Task ……………………………………………………………………..…..….9 1.6.5. Intake ………………………………………………………………..…….……9 1.6.6. Noticing the Gap………………………………………………………….…….9 1.6.7. Retention …………………………………………………………..…………..10 1.7. Summary………………………………………………………….………..….…1 CHAPTER 2: LITERATURE REVIW 2.0. Introduction……………………………………………………………….…..….11 2.1. Feedback Research in SLA……………………………………………………….11 2.1.1. The role of feedback in SLA……………………………………………………11 2.2. Psycholinguistic Processes in Second Language Acquisition …………………..21 2.2.1. Noticing and learning……………………………………………………..……21 2.2.2. The Noticing Hypothesis and SLA……………………………………………..27 2.2.3. Noticing, Intake and Subliminal Perception……………………………..…….35 2.2.4. Individual Differences in Noticing and Awareness ……………………….…..36 2.2.5. A Critical Review of Noticing Hypothesis in SLA………………………..…..37 2.3. The Theories of Vocabulary Acquisition……………………….………………..42 2.3.1. Collocation……………………………………………………………….…….42 2.3.2. Research on collocations………………………………………………..……..44 2.4. Noticing, Awareness and Attention in Learning Collocations………………….47 2.5. Problems in Collocation Production………………………………….……..…..49 2.6. Vocabulary Retention……………………………………………………………50 2.7. Summary……………………………………………………………………..….51 CHAPTER3: METHODOLOGY 3.0. Introduction……………………………………………………………….….….52 3.1. The Design of the Study………………………………………………………….52 3.2. Participants……………………………………………………………..……..…53 3.3. Materials ……………………………………………………………………..…..53 3.3.1. Concordance Software for Text Analysis………………………………..……54 3.3.2. Testing Instruments…………………………………………………………….54 3.3.2.1. The Self-report and Collocation Pre-test…………………………….………54 3.3.2.2. Immediate Collocation Retention Post-test……………………….…….…..54 3.3.2.3. Delayed Collocation Retention Post-test ………………………………..….55 3.3.3. Questionnaires …………………………………………………………….…..55 3.4. Procedure…………………………………………………………………….…..57 3.4.1. Week 1: Self-report Collocation Pretest/ Comparison Session………………..58 3.4.2. Week 3: Immediate Collocation Retention Post-test……………………….….59 3.4.4. Delayed Collocation Retention Post-test………………………………………59 3.5. Methods of Analyzing Data……………………………………………………..60 3.6. Scoring……………………………………….………………………………..…61 3.7. Summary…………………………………………………………………..……..61 CHAPTER4: RESULTS AND DATA ANALYSIS 4.0. Introduction………………………………………………………………………62 4.1. Data Analysis and Findings ………………………………………………….…62 4.1.1. The descriptive Analysis of the Data……………………………………..……62 4.1.2. Inferential Analysis of the Data……………………………………………..…66 4.2. Results of the Hypothesis Testing…………………………………………..……68 4.3. Summary……………………………………………………………………….…68 CHAPTER5: DISCUSSIONS AND IMPLICATIONS 5.0. Introduction………………………………………………………………..…..…69 5.1. General Discussion…………………………………………………………..……69 5.1.1. Discussion of the Findings Gained by the Questionnaire………………..……70 5.2. Implications of the Study…………………………………………………………71 5.2.1. Theoretical Implications……………………………….……………….………71 5.2.2. Pedagogical Implications………………………..…………………………..…71 5.3. Limitations of the Study………………………………………….…………….…72 5.4. Suggestions for Further Research………………………………………..………73 5.5. Summary …………………………………………………………………….……73   REFRENCES…………………………………………………….……..……………74 LIST OF APPENDICES Appendix A: Oxford Placement Test (OPT)…………………………………………90 Appendix B: Self-report Collocation Pretest …………………….……………….….96 Appendix C: Pretest Administered for Participants of Both Groups (Exactly the same test was given for immediate and delayed post-tests)………………………………..96