Preface Chapter 1 Introduction: An overview of the book 1.1 Justification for doing the research 1.2 Theoretical underpinning of the study 1.3 Problems with EFL learne' vocabularylearning 1.4 Collaborative output and SLA 1.5 The conceptual framework of the study 1.6 A mixed model research approach 1.7 Organization of the book Chapter 2 Literature review 2.1 The theoretical underpinning of the study 2.2 Language output and second language vocabularyacquisition Chapter 3 Research design and data collection methods-. 3.1 Research design 3.2 Research methodology and data collectionmethods 3.3 Study 1 : A quasi-experimental study 3.4 Study 2 : An exploratory study 3.5 Use of the data collected Chapter 4 Data processing and data analysis methods 4.1 Analyzing vocabulary posttests in Study 1 4.2 Analyzing task-elicited oral data in Study 2 4.3 Analyzing task-elicited oral data in Study 1 4.4 Validity and reliability of data analyses Chapter 5 Effects of collaborative output on L2 lexicallearning: Confirmative findings from Study 1 5.1 Awering research question 1 5.2 Awering research question 2 5.3 Summary of findings and reflection on usingmultiple scoring methods Chapter 6 Task performances, cognitive word processing,and lexical learning within collaborative output.Exploratory findings from Study 2 6.1 Awering research question 3-1: Overall taskperformances 6.2 Awering research question 3-2: Cognitive wordprocessing 6.3 Relatiohip between word processing and lexicallearning Qualitative exploration Chapter 7 Correlatio between cognitive word processingand lexical learning within collaborative output:Exploratory findings from Study 1 7.1 Correlatio between word processing and lexicallearning: Quantitative exploration 7.2 Relatio between word processing and lexicallearning: Further quantitative exploration 7.3 Comparing correlatio for collaborative writtenoutput and collaborative oral output Chapter 8 Relatiohip between interactional processes and cognitive word processing: Further exploratory findings from Study 2 8.1 Awering research question 5-1: Interactionalprocesses 8.2 Awering research question 5-2:Connecting interactional processes and cognitive wordprocessing Chapter 9 Discussion of the findings 9.1 Findings about effects of collaborative output onlexical learning 9.2 Findings about effects of task roles on lexicallearning 9.3 Findings about word processing and its relatiohipwith lexical learning 9.4 Findings about correlatio between word processingand lexical learning 9.5 Findings about interactional processes and theirrelatiohip with word processing 9.6 The conceptual framework and the theoreticalrationale revisited Chapter 10 Conclusio 10.1 A summary, conclusio, and contributio of thestudy 10.2 Implicatio of the study 10.3 Limitatio of the study 10.4 Recommendatio for future research 10.5 A final synthesis of the study References Appendices 1. A survey on background information 2. The input passage of the study 3. Reading compreheion task used in the study 4. The collaborative oral output task used in Study 1 5. The collaborative written output task used in Study1 6. Cued words for output tasks 7. The vocabulary pre-test used in the study 8. Productive vocabulary posttest 1 9. Receptive vocabulary posttest 1 10. Stimulated recall questio for Study 2 11. Symbols used for data tracribing and data coding 12. The coding scheme for AS-units involved in collaborativeoutput 13. The coding scheme for cognitive word processing involvedin collaborative output 14. The coding scheme for interactional processes involved in collaborativeoutput