An ECI-II RBT provides direct 1:1 intervention to children with autism and/or other developmental delays. Children range in age from approximately 12 months to 12 years old. The ECI-II RBT carries out a systematic instructional sequence planned by and under the supervision of Program Supervisors. Specifically, the ECI-II RBT travels to home, school, and community sites to conduct sessions in the natural environment; conducts 1:1 teaching interactions with each child according to the lesson plans developed by Program Supervisors; collects and graphs data; interprets trends in data in relationship to the child’s progress; provides outreach services and parent education to referred families under the direction of Program Supervisors; communicates as necessary with Program Supervisors to maintain an appropriate supply of instructional materials and to discuss the child’s progress. An ECI-II RBT actively participates in training assignments, attends ongoing in-service trainings, and renders time on the company database daily without reminders.