different practice sites (child psychiatry and developmental pediatrics). The goals of our study were to determine (1) the
number of children diagnosed with and without ASD using DSM-5 and DSM-IV criteria, (2) diagnostic agreement between
the DSM-5, DSM-IV, and CASD, (3) classification accuracy and agreement between measures if one less DSM-5 symptom is
required for a diagnosis of ASD, (4) the similarity of findings between the two practice sites, representing different patient
populations and evaluators, and (5) the percentage of children with ASD who meet DSM-5 criteria for social communication
disorder but not ASD.