In addition to teaching, he is a licensed school psychologist with specialty training in pediatric and adolescent neuropsychology. Dr. Marshall works in a private practice (PACFlorida.com) specializing in the assessment and treatment of children and adolescents with severe emotional, behavioral, and learning disorders. Dr. Marshall is the co-author of the Pediatric Behavior Rating Scale. In addition, he is the co-author of The Middle School Mind: Growing Pains in Early Adolescent Brains. Dr. Marshal is the co-host of two weekly podcasts - The Mental Breakdown and The Paedeia Education Podcast - which can be found on iTunes and Google Play Music. Dr. Marshall travels internationally speaking to professional and community groups about mental health, self-help, and parenting topics.