This authoritative clinical reference and text—now revised and updated with 50% new content—presents the assessment tools and strategies that every evidence-based psychotherapy practitioner needs. Unlike most assessment texts, the volume is organized around specific clinical problems. It explains how to select and use the best measures to assess clients' symptoms, generate diagnoses, plan appropriate treatments, and monitor progress. Clinician- and student-friendly features include tables comparing and contrasting relevant measures, sample forms, and case examples. Every chapter addresses considerations for primary and managed care settings. New to This Edition *Chapters on new topics: assessment of well-being and transdiagnostic assessment. *New chapters on core topics: eating disorders, personality disorders, and insomnia. *Updated throughout with DSM-5 diagnostic changes, new and updated instruments, current research, and increased attention to transdiagnostic concerns. *Expanded coverage of obsessive–compulsive and related disorders. See also Clinical Handbook of Psychological Disorders, Sixth Edition, edited by David H. Barlow, which presents evidence-based treatments step by step.