Synopses & Reviews
Synopsis
This book examines the simultaneous contribution of learner vocabulary size and speed to second language performance differences across learner levels and settings. Harrington considers vocabulary size and speed, as reflected in retrieval speed and consistency, as a three-dimensional measurement construct termed lexical facility. While size and retrieval speed are generally known, this is the first attempt to incorporate consistency, as measured by the coefficient of variation, as an index of vocabulary skill. Part 1 describes the three dimensions and the roles they play constraints on lower level text processing and thus on second language performance more generally. Part 2 reports on eight studies that investigate the sensitivity of the three dimensions, both individually and in combination, to proficiency differences in common domains of academic English performance. Harrington's framework and the theoretical and methodological issues that arise are presented in a manner accessible to a wide readership, including second language acquisition vocabulary researchers, testing and assessment practitioners, and those interested in second language research methodology.
Synopsis
Chapter 1. Size as a dimension of L2 Vocabulary SkillChapter 2. Measuring Recognition Vocabulary SizeChapter 3. Word recognition skill as an aspect of L2 vocabulary knowledgeChapter 4. Lexical Facility: Bringing size and speed togetherChapter 5. Measuring lexical facilityChapter 6. Lexical Facility as an index of L2 ProficiencyChapter 7. Lexical Facility and Academic English ProficiencyChapter 8. Lexical Facility and IELTS performanceChapter 9. Lexical Facility and Language Program PlacementChapter 10. Lexical Facility and academic performance in EnglishChapter 11. The effect of Lexical FacilityChapter 12. The future of Lexical Facility
Synopsis
Coins the term lexical facility to analyse second language performer differences
Establishes a consistent framework to measure size and retrieval speed of vocabulary
Creates a new method of analysis to measure second language performance