Although early intensive behavioral intervention (EIBI) has been clearly shown to be evidence-based, there is very little information available regarding long-term outcomes, especially from community effectiveness studies. We present data on cognitive, adaptive, and autism severity measures from four time points (pre- and post-EIBI and two follow-up points) for a sample of 21 youth, currently aged 16 years on average (range = 13-20) who received EIBI as young children and who have been out of EIBI for a mean of 10 years (range = 8.5-14). Results show heterogeneous outcomes and a general pattern of stability since the end of EIBI, suggesting gains made in EIBI are maintained.
AchenbachT. M.RescorlaL. A. (2001). Manual for ASEBA school-age forms & profiles. Burlington: Research Center for Children, Youth, & Families, University of Vermont.
EldevikS.HastingsR. P.HughesJ. C.JahrE.EikesethS.CrossS. (2009). Meta-analysis of early intensive behavioral intervention for children with autism. Journal of Clinical Child & Adolescent Psychology, 38, 439-450.
4.
EstevesJ.TaheriA.PerryA.KoudysJ. (2016, October). Examining diagnostic measures used for the diagnosis of autism spectrum disorder. Poster presentation at the Ontario Psychological Association annual convention, Toronto, Ontario, Canada.
5.
FlanaganH. E.PerryA.FreemanN. L. (2012). Effectiveness of large-scale, community-based intensive behavioural intervention: A waitlist comparison study exploring outcome and predictors. Research in Autism Spectrum Disorders, 6, 673-682.
6.
FreemanN. L.PerryA. (2010). Outcomes of intensive behavioural intervention in the Toronto preschool autism services. Journal on Developmental Disabilities, 16, 17-32.
7.
KazdinA. E. (2005). Clinical significance: Measuring whether interventions make a difference. In HibbsE. D.JensenP. S. (Eds.), Psychosocial treatments for child and adolescent disorders: Empirically based strategies for clinical practice (2nd ed., pp. 691-710). Washington, DC: American Psychological Association.
8.
KovshoffH.HastingsR. P.RemingtonB. (2011). Two-year outcomes for children with autism after cessation of early intensive behavioral intervention. Behavior Modification, 35, 427-450.
9.
LovaasO. I. (1987). Behavioral treatment and normal intellectual functioning in young autistic children. Journal of Consulting and Clinical Psychology, 55, 3-9.
10.
MatsonJ. L.SmithR. M. (2008). Current status of intensive behavioral interventions for young children with autism and PDD-NOS. Research in Autism Spectrum Disorders, 2, 60-74.
11.
McEachinJ. J.SmithT.LovaasO. I. (1993). Long term outcome for children with autism who received early intensive behavioral treatment. American Journal on Mental Retardation, 97, 359-372.
12.
O’ConnorA. B.HealyO. (2010). Long-term post-intensive behavioral intervention outcomes for five children with autism spectrum disorder. Research in Autism Spectrum Disorders, 4, 594-604. doi:10.1016/j.rasd.2009.12.002
13.
PerryA.CondillacR. A.FreemanN. L.Dunn GeierJ.BelairJ. (2005). Multisite study of the Childhood Autism Rating Scale (CARS) in five clinical groups of young children. Journal of Autism and Developmental Disorders, 35, 625-634.
14.
PerryA.CummingsA.Dunn GeierJ.FreemanN. L.HughesS.LaRoseL.. . . WilliamsJ. (2008). Effectiveness of intensive behavioral intervention in a large, community-based program. Research in Autism Spectrum Disorders, 2, 621-642. doi:10.1016/j.rasd.2008.01.002
15.
PerryA.CummingsA.Dunn GeierJ.FreemanN. L.HughesS.ManaganT.. . . WilliamsJ. (2011). Predictors of outcome for children receiving intensive behavioral intervention in a large, community-based program. Research in Autism Spectrum Disorders, 5, 592-603.
16.
PerryA.FlanaganH. E.Dunn GeierJ.FreemanN. L. (2009). The Vineland Adaptive Behavior Scales in young children with autism spectrum disorders at different cognitive levels. Journal of Autism and Developmental Disorders, 39, 1066-1078.
17.
PrichardE. A. (2011). Short-term follow-up of children with autism who have received intensive behavioural intervention (Unpublished doctoral dissertation). York University, Toronto, Ontario, Canada.
18.
RemingtonB.HastingsR.KovshoffH.degli EspinosaF.JahrE.BrownT.. . . WardN. (2007). Early intensive behavioral intervention: Outcomes for children with autism and their parents after two years. American Journal on Mental Retardation, 112, 418-438.
19.
SchoplerE.ReichlerR. J.RennerB. R. (1988). The Childhood Autism Rating Scale (CARS). Los Angeles, CA: Western Psychological Services.
20.
SparrowS. S.CicchettiV. D.BallaA. D. (2005). Vineland Adaptive Behavior Scales (2nd ed.). Circle Pines, MN: American Guidance Service.
21.
WechslerD. (2004). Wechsler Intelligence Scale for Children (4th ed.). San Antonio, TX: Psychological Corporation.
22.
WilkinsonG. S.RobertsonG. J. (2006). Wide Range Achievement Test 4 professional manual. Lutz, FL: Psychological Assessment Resources.
