25 research outputs found

    Community-Based Early Intervention For Children With Autism Spectrum Disorder

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    One in 68 children has been identified with Autism Spectrum Disorder (ASD), a disorder defined by 1) deficits in social-communication and social interactions and 2) restricted, repetitive patterns of behavior, interests or activities. Research has shown that children with ASD who receive high-quality early intervention (EI) services in university-based research trials can make large gains in cognitive, communication, and adaptive behaviors skills, with positive long term effects. However, less is known about the outcomes for the over 50,000 children who receive EI in community settings. This dissertation provides initial evidence of the current state of community-based EI for children with ASD. Chapter 1 presents a meta-analysis of cognitive, communication, social, and adaptive behavior outcomes for children with ASD in community-based EI programs, and demonstrates that the gains made in the community are much smaller than those observed in university-based trials. In Chapter 2, prospective, longitudinal data collected from a local EI system is studied to understand which characteristics of preschool EI predict cognitive gains for 79 preschoolers with ASD that received publicly-funded services in classroom placements. The best predictor of gains was the utilization of recommended intervention practices to support the development of social and peer relationships. Chapter 3 discusses measurement of executive functioning (EF) among preschoolers with ASD, as executive functioning skills likely play an important role in response to EI. However existing EF measures have not been validated for use with low-functioning, nonverbal preschoolers with ASD. Results are presented from the development and the validation of a battery of nonverbal, performance-based EF tasks. These measures can be utilized in future community-based treatment trials

    Energy Levels of Light Nuclei. III

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    A randomized controlled trial of Hanen's 'More Than Words' in toddlers with early autism symptoms

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    BACKGROUND: This randomized controlled trial compared Hanen’s ‘More than Words’ (HMTW), a parent-implemented intervention, to a ‘business as usual’ control group. METHODS: Sixty-two children (51 boys and 11 girls; M age = 20 months; SD = 2.6) who met criteria for autism spectrum disorders (ASD) and their parents participated in the study. The HMTW intervention was provided over 3.5 months. There were three measurement periods: prior to randomization (Time 1) and at 5 and 9 months post enrollment (Times 2 and 3). Children’s communication and parental responsivity were measured at each time point. Children’s object interest, a putative moderator, was measured at Time 1. RESULTS: There were no main effects of the HMTW intervention on either parental responsivity or children’s communication. However, the effects on residualized gains in parental responsivity from Time 1 to both Times 2 and 3 yielded noteworthy effect sizes (Glass’s Δ = .71, .50 respectively). In contrast, there were treatment effects on child communication gains to Time 3 that were moderated by children’s Time 1 object interest. Children with lower levels of Time 1 object interest exhibited facilitated growth in communication; children with higher levels of object interest exhibited growth attenuation. CONCLUSIONS: The HMTW intervention showed differential effects on child communication depending on a baseline child factor. HMTW facilitated communication in children with lower levels of Time 1 object interest. Parents of children who evidence higher object interest may require greater support to implement the HMTW strategies, or may require different strategies than those provided by the HMTW curriculum

    An Illustration of Using Multiple Imputation Versus Listwise Deletion Analyses: The Effect of Hanen's More Than Words on Parenting Stress

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    Abstract This investigation illustrates the effects of using different missing data analysis techniques to analyze effects of a parent-implemented treatment on stress in parents of toddlers with autism symptomatology. The analysis approaches yielded similar results when analyzing main effects of the intervention, but different findings for moderation effects. Using listwise deletion, the data supported an iatrogenic effect of Hanen's “More Than Words” on stress in parents with high levels of pretreatment depressive symptoms. Using multiple imputation, a significant moderated treatment effect with uninterpretable regions of significance did not support an iatrogenic effect of treatment on parenting stress. Results highlight the need for caution in interpreting analyses that do not involve validated methods of handling missing data.</jats:p

    Concordance between a U.S. Educational Autism Classification and the Autism Diagnostic Observation Schedule.

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    States in the United States differ in how they determine special education eligibility for autism services. Few states include an autism-specific diagnostic tool in their evaluation. In research, the Autism Diagnostic Observation Schedule (ADOS for first edition, ADOS-2 for second edition) is considered the gold-standard autism assessment. The purpose of this study was to estimate the proportion of children with an educational classification of autism who exceed the ADOS/ADOS-2 threshold for autism spectrum (concordance rate). Data were drawn from 4 school-based studies across 2 sites (Philadelphia, Pennsylvania, and San Diego, California). Participants comprised 627 children (2-12&nbsp;years of age; 83% male) with an autism educational classification. Analyses included (a) calculating the concordance rate between educational and ADOS/ADOS-2 classifications and (b) estimating the associations between concordance and child's cognitive ability, study site, and ADOS/ADOS-2 administration year using logistic regression. More San Diego participants (97.5%, all assessed with the ADOS-2) met ADOS/ADOS-2 classification than did Philadelphia participants assessed with the ADOS-2 (92.2%) or ADOS (82.9%). Children assessed more recently were assessed with the ADOS-2; this group was more likely to meet ADOS/ADOS-2 classification than the group assessed longer ago with the ADOS. Children with higher IQ were less likely to meet ADOS/ADOS-2 classification. Most children with an educational classification of autism meet ADOS/ADOS-2 criteria, but results differ by site and by ADOS version and/or recency of assessment. Educational classification may be a reasonable but imperfect measure to include children in community-based trials
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