1. Department of Audiology, Speech-Language Pathology, and Deaf Studies, Towson University, USA; Department of Allied Health Sciences, University of North Carolina at Chapel Hill, USA
2. Department of Interprofessional Health Studies, Towson University, USA
3. Department of Allied Health Sciences, University of North Carolina at Chapel Hill, USA
4. Department of Allied Health Sciences, University of North Carolina at Chapel Hill, USA; Current address: University of North Carolina at Chapel Hill, Carolina Institute for Developmental Disabilities, USA
5. Department of Allied Health Sciences, University of North Carolina at Chapel Hill, USA; Program for Early Autism Research, Leadership & Service, USA