Lourdes Ortega is Associate Professor of Second Language Studies at the University of Hawai‘i. Her research interests include second language acquisition, second language writing, and research methods. Recent publications are Synthesizing Research on Language Learning and Teaching (co-edited with John Norris, Benjamins) and Understanding Second Language Acquisition (Arnold).Heidi Byrnes is George M. Roth Distinguished Professor of German at Georgetown University. Her research focus is the acquisition of L2 academic literacy by adult instructed learners. Recent publications include Educating for Advanced Foreign Language Capacities: Constructs, Curriculum, Instruction, Assessment (co-edited with Heather Weger-Guntharp and Katherine A. Sprang, Georgetown University Press); and Advanced Language Learning: The Contribution of Halliday and Vygotsky (Continuum).

• Introduction Chapter 1. The longitudinal study of advanced L2 capacities: An introduction Lourdes Ortega & Heidi Byrnes Part I- Theoretical and methodological explorations Chapter 2. Developing qualitative longitudinal case studies of advanced language learners Linda Harklau Chapter 3. Systemic Functional Linguistic explorations into the longitudinal study of the advanced capacities: The case of Spanish heritage language learners Mariana Achugar & M. Cecilia Colombi Chapter 4. Investigating learner language development with electronic longitudinal corpora: Theoretical and methodological issues Florence Myles Chapter 5. Planning, collecting, exploring, and archiving longitudinal L2 data: Experiences from the P-MoLL Project Romuald Skiba, Norbert Dittmar, & Jana Bressem Chapter 6. Issues in the quantitative longitudinal measurement of second language progress in the study abroad context Jonathan Rees & John Klapper Part II- Empirical investigations Chapter 7. Advancedness and the development of relativization in L2 German: A curriculum-based study Heidi Byrnes & Castle Sinicrope Chapter 8. Advanced learners’ development of systematic vocabulary knowledge: Learning German vocabulary with inseparable prefixes Katherine A. Sprang Chapter 9. Teaching grammatical meaning to advanced learners: A cognitive-semantic perspective Olga Liamkina Chapter 10. L1-L2 Translation vs. No Translation: A longitudinal study of Focus-on-FormS within a meaning-focused curriculum Marie Källkvist Chapter 11. Longitudinal gain of higher-order inferential abilities in L2 English: Accuracy, speed, and conventionality Naoko Taguchi Chapter 12. Histories of engagement and sociolinguistic awareness in study abroad: Colloquial French Celeste Kinginger & Géraldine Blattner Chapter 13. Acquiring oral language skills over the course of a high school year abroad: What’s in it for absolute beginners? Allison J. Spenader Chapter 14. An ethnographic longitudinal approach to the development of assessment for advanced competencies of medical interpreters Claudia V. Angelelli Coda Chapter 15. Theorizing advancedness, setting up the longitudinal research agenda Lourdes Ortega & Heidi Byrnes