This handbook is the first comprehensive synthesis of these distinct yet interrelated fields of SLA and language testing. Uniquely, this handbook is written for both second language acquisition researchers interested in the applications of language testing, and language testers interested in the SLA theory underpinning their work. "The Handbook of SLA and Language Testing is a wonderful volume that shows how SLA and language testing combined into one transdisciplinary research space has incredible power to move L2 learning theory into solid, new, and exciting grounds. Paula Winke and Tineke Brunfaut's stewardship over the chapters in this volume has given rise to a Handbook that will be read, consulted, and cited for years to come." --Jamie Schissel, University of North Carolina, USA.