Defining and Assessing Lexical Proficiency : Routledge : 9781032086491 : 1032086491 : 30 Jun 2021 : This comprehensive account of performance-based assessment of L2 lexical proficiency analyzes and compares two of the primary methods of evaluation used in the field and unpacks the ways in which they tap into different dimensions of one model of lexical competence and proficiency. This book builds on the latest research on performance-based assessment, which has most recently pointed to the application of more quantitative measures to L2 data, to systematically explore the qualitative method of using human raters in assessment exercises and the quantitative method of using automatic computation of statistical measures of lexis and phraseology. Supported by an up-to-date review of the existing literature, both approaches' unique features are highlighted but also compared to one another to provide a holistic overview of performance-based assessment as it stands today at both the theoreti