Paula Winke is a Professor of Second Language Studies and TESOL at Michigan State University, USA, where she specializes in the assessment of language proficiency for practical uses and the measurement of individual differences for SLA research.

Tineke Brunfaut is a Professor of Linguistics and English Language at Lancaster University, UK, where she specializes in language testing and second language reading and listening.

1. Introduction: Perspectives on 'Knowing' a Second Language: What are we seeking to measure? Part 1. Assessment Concepts for SLA Researchers 2. Validity Theory 3. Validating Assessments for Research Purposes 4. Language Proficiency: Definitions, Scales (ACTFL, CEFR, DLI, ILR) 5. Corpora, Test Development, Describing 6. SLA Ressearcher Assessment Literacy Part 2. Building Instruments for SLA Research 7. Test Design Cycle 8. Likert Scale Item Construction 9. Choosing Test Formats/Task Types 10. Designing Multiple Choice Questions 11. Pilot Testing: How and Why 12. Scoring Approaches: Rubrics/Scales 13. Raters: Behavior and Training Part 3. Measuring Individual Differences 14. Measuring Aptitude 15. Measuring Motivation 16. Measuring Working Memory 17. Measuring Anxiety 18. Measuring Willingness to Communicate (WTC)/Interact Part 4. Measuring Language Development 19. Measuring Complexity, Accuracy, Fluency (CAF) 20. Measuring Vocabulary Development 21. Measuring Lexicogrammar 22. Measuring Morphosyntax/Grammatical Knowledge 23. Measuring Phonology 24. Measuring Pragmatics 25. Measuring L2 Reading 26. Measuring L2 Listening 27. Measuring L2 Speaking 28. Measuring L2 Writing 29. Measuring Implicit/Explicit Learning 30. Measuring Task-based Performance 31. Measuring Literary Study 32. Measuring Interactional Competence 33. Measuring Across Languages 34. Measuring Intercultural Competence 35. Measuring Acquisition in Non-Formal Settings 36. Measuring One's Own Language Development Part 5. Testing Specific Populations 37. Testing Bi/Multilingual Learners 38. Testing the L2 of Young Learners 39. Testing the L2 of Learners with Specific Learning Differences 40. Testing Heritage Learners 41. Testing Sign Language Learners Part 6. Measurement Principles for SLA Researchers 42. Statistical Modelling of SLA Theories: Connecting Test Performance to Construct 43. Equivalating Test Forms in SLA Pre- and Post-Test Design Research 44. Reliability Analyses: Evaluating Error 45. Statistical Significance Testing and Effect Sizes 46. Non-Parametric Statistics