Background and Aims: The reliability and validity of an intervention can be improved by checking treatment fidelity (TF). TF methods identify core components of an intervention, check their presence (or absence) and identify threats to fidelity. The Virtual Elaborated Semantic Feature Analysis (VESFA) intervention comprised individual sessions of…

Evidence-based mathematics interventions are critical for supporting students with mathematics difficulties. In research and practice, collecting implementation fidelity is important for ensuring that all the core components of the intervention are implemented as designed. Historically, implementation fidelity has been defined as multi-faceted…

Families are central to promoting communication in young children with disabilities with complex communication needs. Providing coaching on naturalistic language interventions (NLI) gives parents tools for independently intervening on communication across activities in the home. Both parents and professionals have limited resources, which requires…

Researchers have studied the efficacy of motivational interviewing over the past 30 years. While it is recognized as a highly effective approach overall, variability in outcomes studies is largely attributed to the extent to which it is implemented with fidelity. MI applications in school have become increasingly popular in the past 10 years, yet…

Procedural fidelity refers to the degree to which procedures for an assessment or intervention (i.e., independent variables) are implemented consistent with the prescribed protocols. Procedural fidelity is an important factor in demonstrating the internal validity of an experiment and clinical treatments. Previous reviews evaluating the inclusion…

Involving typically developing (TD) children in delivering interventions can be an effective strategy conducive to long-lasting and generalized behavior changes for their siblings with autism spectrum disorder (ASD). In this study, we recruited two sibling dyads and investigated the extent to which TD children could deliver the model-lead-test…

The Good Behavior Game (GBG), a universal classroom management intervention, has shown clear benefits in promoting the behavioral, social-emotional, and academic development of students. However, the quality with which this intervention is delivered tends to diminish over time, which decreases the likelihood of these positive outcomes. By…

Data on implementation of school-based interventions adds highly valuable information to corresponding evaluation studies. Measuring implementation outcomes, such as fidelity or acceptability, provides information on how to improve current and future implementation processes. Moreover, analyzing intervention outcomes in combination with…

Objective: The precise measurement of treatment fidelity (quantity and quality in the delivery of treatment strategies in an intervention) is essential for intervention development, evaluation, and implementation. Various informants are used in fidelity assessment (e.g., observers, practitioners [clinicians, teachers], clients), but these…

This pilot study evaluated the effects of a mindfulness-based intervention (MBI) on teacher stress and coping as well as students' prosocial classroom behavior. This study also explored the implementation fidelity and social validity of this MBI with teachers. This study used a single-case multiple baseline design across four elementary teachers.…

This study investigated the effects of interdependent group contingencies (IGCs) on teacher behavior in high school classrooms. Interdependent group contingencies, rooted in the principles of applied behavior analysis, have demonstrated to be effective in managing student behaviors. However, their impact on teacher behavior has remained…

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…

Districts and schools are under pressure to increase student academic outcomes while meeting their various social-behavioral needs. This pressure is compounded by the responsibility of creating climates that are safe and equitable for all students where teachers can teach, and all students can learn. However, far too often, negative, and…

Procedural fidelity is the extent to which an intervention is implemented as designed and is an important component of research and practice. There are multiple ways to measure procedural fidelity, and few studies have explored how procedural fidelity varies based on the method of measurement. The current study compared adherence to discrete-trial…

Treatment fidelity refers to the extent to which an intervention is implemented as planned. If researchers do not assess and report treatment fidelity, or if treatment fidelity is shown to be low, findings from intervention studies are difficult to interpret, because the intervention may not have been implemented as planned. In this article, our…