This sequel to the authors' Psychological Knowledge in Court offers a welcome expansion on key concepts, terms, and issues in causality. The book brings much needed clarity to psychological injury assessments and the legal contexts that employ them. Focusing on PTSD, traumatic brain injury, and chronic pain (and grounding readers in salient U.S. and Canadian case law), this book sets out a multifactorial causality framework to facilitate admissibility of psychological evidence in court. Issues concerning malingering are examined in depth, as are clinical grey areas that can jeopardize validity. At the same time, the book clearly explains what lawyers and clinicians need to understand about each other's work -- of crucial importance since the two sides often seem to speak at cross-purposes. Forensic practitioners and attorneys will turn to this book in seeking comprehensive and state-of-the-art information as their professional paths increasingly cross.