In Defiant Children, Second Edition: A Clinician's Manual for Assessment and Parent Training, Russell Barkley provides a thorough clinical guide to his proven 10-session parent training program, an updated assessment section that incorporates DSM-IV diagnostic criteria, and reproducible parent handouts reinforcing each step of the program. Niños Desafiantes contains all of the assessment forms and parent handouts from the clinical manual expertly translated and ready to copy and use with Spanish-speaking clients.