[1] Univ North Carolina Chapel Hill, TEACCH Autism Program, Chapel Hill, NC 27599 USA
[2] Univ Alabama, Ctr Youth Dev & Intervent, Dept Psychol, Tuscaloosa, AL USA
[3] Vanderbilt Univ Sch Med, Dept Psychiat & Behav Sci, Nashville, TN USA
[4] SUNY Stony Brook, Dept Psychol, Stony Brook, NY USA
[5] Drexel Univ, AJ Drexel Autism Inst, Philadelphia, PA USA
[6] Univ S Florida, Dept Psychol, Tampa, FL USA