This course will provide an overview of intellectual and developmental disabilities and the relation to behavior analysis. Students will gain a perspective on the history and changing perspectives of these disabilities. Both causal and contributing genetic and environmental factors for various conditions will be discussed. Students will examine a variety of disorders in terms of physical characteristics, brain changes, growth patterns, life expectancy, communication issues, health concerns, behavioral concerns, and treatment. Disabilities examined will include Down syndrome, fragile X syndrome, autism, attention-deficit hyperactivity disorder, fetal alcohol spectrum disorder, and learning disabilities. In addition, students will discuss a variety of current issues related to intellectual and developmental disabilities, including early intervention, educational placement, transitioning between life stages, response to intervention, medication use, and fad therapies. Finally, students will examine the behavior-analytic literature related to assessment and intervention for individuals with developmental disabilities.