This unique hands-on guide walks neuropsychologists through the process of validity assessment and management in real-world clinical settings. Emphasizing the medical necessity of evaluating validity, the authors provide detailed examples, procedural tips, and downloadable practical tools. Step-by-step guidelines are presented for managing potentially complicated referrals, using the clinical interview to gain awareness of possible concerns, choosing and administering performance and symptom validity tests, and providing feedback and treatment recommendations when invalidity is identified. Clinician–patient relationship issues are sensitively addressed. The book concludes with a chapter-length case example.