Abstract
With publication of the DSM-5 slated for May 2013, it has been predicted that the new diagnostic criteria will cause a decrease in the prevalence of autism spectrum disorders (ASDs), seriously impacting children no longer meeting criteria for the disorder. A majority of individuals with ASD have behavior problems which are not considered core features of the disorder but are significantly impairing and often the focus of intervention. The aim of the current study was to investigate types of challenging behaviors in toddlers who may no longer meet diagnostic criteria for ASD using a psychometrically sound measure, the Baby and Infant Screen for Children with aUtIsm Traits (BISCUIT) – Part 3. The study included 3339 toddlers, 501 who will retain ASD diagnosis according to the DSM-5; 439 who will no longer meet criteria, and a comparison group of 2399 toddlers referred for evaluation due to atypical development. Though toddlers diagnosed under the DSM-5 exhibited the most challenging behaviors, those who did not meet DSM-5 criteria exhibited significantly more challenging behaviors than the atypically developing toddlers. The effect of the changes in ASD diagnostic criteria on access to early behavioral interventions warrants careful consideration as the new DSM-5 criteria are adopted.
Published Version
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