Limited research has examined the active ingredients and mechanisms of change of naturalistic developmental behavioral interventions (NDBIs). The present study used an exploratory sequential mixed-methods design to develop a comprehensive Theory of Change of Project ImPACT, an empirically supported NDBI. We used qualitative data from interviews…

An expanding evidence base has advocated for delivery of naturalistic developmental behavioral interventions (NDBIs) within community systems, thus extending the reach of these practices to young autistic children. The current study examined provider-reported use of NBDIs within a Part C Early Intervention (EI) system and the extent to which…

This study compared the outcome of Early Intensive Behavioral Intervention when supervision was given over videoconference for half of the meetings. This started after 3 months of intervention. The participating children were diagnosed with autism spectrum disorder and were randomly placed in either the videoconference group or in the onsite…

Purpose: Despite group-level improvements in active engagement and related outcomes, significant individual variability in response to early intervention exists. The purpose of this preliminary study was to examine the effects of a group-based Naturalistic Developmental Behavioral Intervention (NDBI) on active engagement among a heterogeneous…

Naturalistic developmental behavioral interventions (NDBIs) are evidence-based interventions for young children with autism spectrum disorder. There has been growing interest in implementing manualized NDBIs within the early intervention (EI) system without a clear understanding of how these programs and the broader strategies encompassed within…

Many autistic children require support to meet their learning needs. Given the heterogeneity within the autism spectrum it is plausible that different types of support might be better suited to different children. However, knowledge on what interventions work best for which children is limited. We examined the outcomes of autistic preschool-aged…

Naturalistic developmental behavioral interventions are an empirically supported intervention approach for young autistic children. Despite the prevalence of disruptive behaviors among autistic children, most manualized caregiver-mediated naturalistic developmental behavioral interventions include limited formal guidance on when and how to manage…

In this study, we evaluated the effect of the Future Center Early Intensive Behavioral Intervention program on children's skills longitudinally by sex, age, and diagnoses as dependent variables. Sixty-seven children ages 1-6 years and diagnosed with autism spectrum disorder were followed up for 2 years in Syria. They were assessed twice across the…

Mounting empirical support for early intensive behavioral intervention (EIBI) has increased demand for early intervention services for children diagnosed with autism spectrum disorder (ASD), which may include a variety of components such as discrete-trial instruction (DTI) or natural environment teaching (NET). Many caregivers are now learning…

Younger siblings of autistic children are at a high likelihood (HL) of autism, language, and/or cognitive delays. Vocal complexity, a continuous measure of the developmental maturity of vocal communication, is facilitated by parent-child interaction and predicts language outcomes. This study examined whether parents' intervention fidelity to…

Children who engage in aggressive behaviors are at heightened risk of being involved in the justice system, committing serious offenses, and becoming chronic offenders. The Stop Now And Plan (SNAP) program was designed as an early intervention to address several mechanisms underlying the development of conduct problems, including emotion…

Despite showing effects in well-controlled studies, the extent to which early intensive behavioral intervention (EBI) produces positive changes in community-based settings remains uncertain. Thus, our study examined changes in autistic symptoms and adaptive functioning in 233 children with autism receiving EBI in a community setting. The results…

To address the variability of naturalistic developmental behavioral intervention outcomes, the current study sought to isolate the effects of the instructional strategies of caregiver-mediated naturalistic developmental behavioral interventions. In this comparative efficacy trial, mothers of 111 autistic children (18-48 months) were randomized to…

We evaluated the effectiveness of a statewide Medicaid program providing in-home Early Intensive Behavioral Intervention services to young children with Autism Spectrum Disorder living in a rural southern state. Program effectiveness was assessed via the Assessment of Basic Language and Learning Skills-Revised (ABLLS-R). A multi-level growth model…

This article describes the development and use of a first of its kind statewide implementation of an adapted Early Start Denver Model (ESDM). Supported by a collaborative partnership between stakeholders that included families, state agencies, and a state university, the intervention was implemented within the existing framework of a northeastern…