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Therapies for Children With Autism Spectrum Disorders

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Because of the potentially increased efficiency and desirability of having parents provide<br />

intervention to their children in their own homes, several studies have reported on varying<br />

approaches to preparing parents to provide behavioral therapies. Sofronoff et al. 174,175 conducted<br />

a parent training intervention with parents of children ages six to twelve years with Asperger<br />

syndrome diagnoses. Parents either (a) participated in a one-day workshop, (b) attended six<br />

weekly 1-hour individual sessions conducted by master’s or doctoral students in psychology, or<br />

(c) were placed in a waitlist control group. Components of the intervention were the same in both<br />

treatment groups and involved psychoeducation, comic strip conversations and social stories<br />

introduction, and management techniques <strong>for</strong> externalizing behaviors, rigid behaviors, and<br />

anxiety. Parents from both intervention groups reported significantly better social skills in their<br />

children than did parents in the waitlist control group at both 1-month post-treatment and 3month<br />

followup; at 3-month followup, parents from the individual session group reported<br />

marginally better social skills <strong>for</strong> their children than did parents from the workshop group,<br />

suggesting little modification of effect by intensity (one day vs. weekly training).<br />

Finally, in a case series assessing an intervention intended to improve either joint attention or<br />

symbolic play skills, a teacher-led approach was compared with one in which the child took the<br />

lead and found positive effects associated with the teacher leadership. 158<br />

Child characteristics. Several characteristics of the child have been assessed to determine<br />

whether there were identifiable variables associated with positive outcomes in intensive<br />

behavioral interventions.<br />

Cognitive abilities/IQ. The most commonly reported characteristic investigated relates to<br />

pretreatment cognitive abilities/IQ. Several investigations have noted that pretreatment IQ and<br />

language predicts IQ at followup within the context of UCLA/Lovaas-based<br />

methodologies. 101,104,115,124,287 However, other studies have suggested having a lower IQ at<br />

initiation of treatment is related to increased change in IQ over time 127 or and change in response<br />

to intervention 102,126,132 within this same methodology. In contrast to UCLA/Lovaas-based<br />

methodologies, parent training interventions <strong>for</strong> teaching early social communication skills<br />

demonstrate that children with lower language levels and/or lower IQ at baseline may actually<br />

benefit more from this intervention. 108,109 Some data from Pivotal Response Training studies<br />

suggest that less impaired children do better in response to offered parent training. 117<br />

Language/communication skills. Baseline language/communication skills may also correlate<br />

with treatment success, with studies generally suggesting a benefit <strong>for</strong> communication skills,<br />

including changes in ASDs classification associated with baseline language skills in an ABAbased<br />

approach.102, 124 In one RCT155, 156 comparing the use of targeted joint attention<br />

intervention to development of symbolic play skills, children with initially higher levels of<br />

expressive language showed greater growth in expressive language from pre-intervention to 12<br />

months post-intervention. Among children with lower expressive language initially, those in the<br />

joint attention group showed significantly greater improvements in expressive language. In<br />

addition, joint attention initiations, responding to joint attention, the duration of child-initiated<br />

joint attention, average highest level of play, total number of symbolic play types, and initial<br />

receptive language age all predicted greater gains at 6 and 12 months post intervention.<br />

Similarly, social skills studies have found verbal skills, either verbal comprehension (using<br />

the Verbal Comprehension Index) or expressive communication skills to be associated with<br />

89

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