<p><em>The Routledge Handbook of Second Language Acquisition and Individual Differences</em> provides a thorough, in-depth discussion of the theory, research, and pedagogy pertaining to the role individual difference (ID) factors play in second language acquisition (SLA). </p><p>It goes beyond the traditional repertoire and includes 32 chapters covering a full spectrum of topics on learners’ cognitive, conative, affective, and demographic/sociocultural variation. The volume examines IDs from two perspectives: one is how each ID variable is associated with learning behaviors, processes, and outcomes; the other is how each domain of SLA, such as vocabulary or reading, is affected by clusters of ID variables. The volume also includes a section on the common methods used in ID research, including data elicitation instruments such as surveys, interviews, and psychometric testing, as well as methods of data analysis such as structural equation modeling. </p><p>The book is a must-read for any second language researcher or applied linguist interested in investigating the effects of IDs on language learning, and for any educator interested in taking account of learners’ individual differences to maximize the effects of second language instruction.</p> <p>Foreword <b>Part 1 Introduction </b>1 Individual Differences in Second Language Acquisition: Theory, Research, and Practice <b>Part 2 Cognitive Differences</b> 2 Explicit and Implicit Language Aptitudes 3 Working Memory 4 Declarative and Procedural Memory as Predictors of Second Language Development 5 Learning Styles and Strategies 6 Metacognition<b> Part 3 Conative Differences</b> 7 Motivation 8 Mindsets 9 Goal Complexes 10 Willingness to Communicate <b>Part 4 Affective Differences</b> 11 Anxiety 12 Enjoyment 13 Self-Efficacy 14 Learner Beliefs <b>Part 5 Sociocultural and Demographic Differences</b> 15 Identity 16 Age <b>Part 6 Individual Difference Factors for Aspects of Second Language Learning</b> 17 Individual Difference Factors for Second Language Pronunciation 18 Individual Difference Factors for Second Language Vocabulary 19 Individual Difference Factors for Second Language Grammar 20 Individual Difference Factors for Second Language Pragmatics 21 Individual Difference Factors for Second Language Listening 22 Individual Difference Factors for Second Language Speaking 23 Individual Difference Factors for Second Language Reading 24 Individual Difference Factors for Second Language Writing <b>Part 7 Research Methods</b> 25 Surveys 26 Narrative Methods 27 Ethnography 28 Eye-Tracking 29 Psychometric Assessments 30 Measures of Implicit Attitudes 31 Methods for Complexity Theory in Individual Differences Research 32 Structural Equation Modeling and Factor Analysis</p>