“…For participant characteristics, we coded age, sex, reported psychiatric diagnoses, and genetic syndromes, as well as reported topographies of problem behavior. For J. E. Carr et al (1998), we indicated that the patient's name was not reported and for Taylor et al (1994), we indicated that the IDD diagnosis for Devin was unspecified. We coded the following categories of problem behavior: physical aggression, property destruction, self-injurious behavior, inappropriate vocalizations, noncompliance, and elopement.…”