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Integrating treatment strategies for children with autism

Abstract

Treatment studies indicate that substantial gains may be achieved by some children with autism spectrum disorders (ASD) when behavioral treatment is provided at an early age (National Autism Center, 2009; Vismara & Rogers, 2010). However, heterogeneity of treatment response is common to all evidence-based approaches (Delmolino & Harris, 2012; Sherer & Schreibman, 2005). Currently, no treatment completely ameliorates the symptoms of ASD and no specific treatment has emerged as the established standard of care. Investigators have hypothesized that customizing treatments based on individual child and family needs should increase the overall number of children that benefit from intervention (Stahmer, Schreibman, & Cunningham, 2011). Improved understanding of how to match specific treatments to children exhibiting different behavioral characteristics may enhance our ability to tailor interventions to individual children, thereby improving treatment effectiveness. The current investigation evaluated the relative efficacy of DTT and PRT for teaching children with autism under the age of 3 receptive and expressive language, play, and imitation skills. A single-subject adapted alternating treatments design was used, whereby children received both DTT and PRT for 12 weeks. Potential predictor variables were collected at pre-treatment. Data were collected during treatment and at 3-month follow-up. All participants learned target skills in both treatments and demonstrated some generalization, maintenance, and spontaneous use of skills acquired during DTT and PRT. However, each child benefited to differing degrees from intervention. PRT was more effective for some children, domains, and dimensions of behavior, whereas DTT was more effective for others. The results also suggested that a combination of PRT and DTT may be optimal in some cases. Pre-treatment adult avoidance and language skills may aid in prospective treatment planning efforts. Additionally, early rates of learning may be predictive of longer-term treatment response. The results confirm the importance of treatment individualization and begin to suggest specific methods for tailoring treatment programs to individual child needs. The strengths and weakness of DTT and PRT may vary depending on child variables, as well as curriculum area focus

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