This comprehensive reference and text provides detailed guidelines for conducting multimodal assessments of individuals suffering from frequently encountered psychological disorders. The contributors, leading scientist-practitioners, address the growing need for assessment approaches that are brief, easy to implement, and psychometrically sound. Tools and techniques considered include structured and semistructured interviews, self-report measures, psychophysiological measures, observational techniques, and more. Of crucial importance, the book also demonstrates how assessment results can effectively be used in planning evidence-based interventions and monitoring the outcome of treatment.