Chapters in this book

1. Prelim pages i
2. Table of contents v
3. Foreword ix
4. Part I. Theory
5. Chapter 1. Scientific inquiry 3
6. Chapter 2. Language acquisition and the need for a theory of language proficiency 11
7. Chapter 3. BLC-HLC Theory: Language proficiency in native speakers 19
8. Chapter 4. BLC-HLC Theory: Language proficiency in non-native speakers 37
9. Chapter 5. BLC-HLC Theory: Summary and discussion of Part One 51
10. Part II. Research
11. Chapter 6. Language proficiency of native speakers: Commonalities and differences 59
12. Chapter 7. Components of language proficiency 81
13. Chapter 8. Interdependence of L1 and L2 literacy 115
14. Chapter 9. Measuring language proficiency in research on L2 acquisition and bilingualism 133
15. Chapter 10. Levels of language proficiency in scales of educational assessment 143
16. Epilogue 157
17. References 159
18. Appendix 1 181
19. Person index 187
20. Subject index 191