Short-Term and Long-Term Stability of the Autism Diagnostic Observation Schedule (ADOS-2) Calibrated Comparison Scores (CCS) and Classification Scores in Youth with Down Syndrome or Fragile X Syndrome with Intellectual Disability - Angela John Thurman; Amanda Dimachkie Nunnally; Vivian Nguyen; Elizabeth Berry-Kravis; Audra Sterling; Jamie Edgin; Debra Hamilton; Jeannie Aschkenasy; Leonard Abbeduto (Journal of Autism and Developmental Disorders, 2026)