Intervention fidelity is the extent to which an individual- or systems-level student intervention is delivered comprehensively in a manner aligned with the initial plan. This first installment in a three-part series on intervention fidelity highlights the importance of ensuring classroom supports are implemented as intended and introduces…

This study explored school psychologists' practices in the areas of developing behavior intervention plans (BIPs), conducting functional behavior assessments (FBAs), and behavioral consultation. Practitioners were asked to rate their level of confidence in the implementation with fidelity of the last BIP they developed. Relationships between these…

A systematic review and meta-analysis were utilised to explore the methodological quality, program fidelity, and efficacy of social skills group programs (SSGPs) aiming to support autistic adolescents in navigating their everyday social worlds. The study evaluated the methodological quality and theoretical fidelity of studies, with a random effect…

Implementation planning is a consultative educator support strategy with preliminary evidence of effectiveness from single-case design research. This meta-analysis investigates the impacts of implementation planning on educator implementation and student outcomes and explores moderators of these relationships. Principles of open science and…

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…

A single-case multiple baseline design across three families was used to evaluate the impact of a manualized Prevent-Teach-Reinforce for Families (PTR-F) process for addressing challenging behavior (CB) when delivered in a remote format (PTR-F: R). Results across three U.S. families showed that (a) a functional relation existed between parent…

Individuals with disabilities may exhibit dangerous behavior such as physical aggression and self-injury. Determining the environmental variables maintaining dangerous behavior using a functional behavior assessment can inform treatment in teaching individuals with disabilities functionally equivalent replacement behavior. However, logistic…

The publicly funded early intervention program for preschoolers with autism spectrum disorder (ASD) in Nova Scotia, Canada, uses the pivotal response treatment (PRT) model. Parents are coached in use of PRT strategies during their children's first week of treatment. We explored whether parents of older preschoolers with limited verbal ability…

Previous research has shown that low procedural fidelity can lead to decreased effectiveness and efficiency of skill acquisition during discrete-trial instruction. Previous research has also found that procedural fidelity may be substantially lower when a supervisor is not present to observe the session. Finding a socially acceptable, effective,…

Social deficits are often a core area of development for students in special education, thus schools are charged with providing social skills interventions. Although many strategies are available, few schools successfully employ evidence-based interventions for students with autism and related disabilities. A way to address these concerns while…

Post-training consultation support is linked to improvements in evidence-based treatment fidelity following initial training, but little is known about what makes it work, and how clinician-level factors may moderate its effects. This study examined the adherence and competence of N = 33 school-based clinicians trained to provide modular Cognitive…

Check-in/check-out (CICO) is an evidence-based multicomponent intervention widely implemented in elementary and middle schools. The purpose of this study was to evaluate whether an adapted CICO intervention, with CICO components designed to be more developmentally appropriate for adolescents and contextually relevant for high schools, could be…

Few studies examine the effectiveness of community-based early interventions in unselected samples of autistic children, especially those from minoritized backgrounds. These types of studies require attention to strategies for recruitment, retention, data collection, and support for community providers beyond those used in university-based trials.…