Randomized experiments are a strong design for establishing impact evidence because the random assignment mechanism theoretically allows confidence in attributing group differences to the intervention. Growth of randomized experiments within educational studies has been widely documented. However, randomized experiments within education have…

Implementation of evidence-based practices for autistic students must be informed by robust research literature. Randomized-controlled trials (RCTs) are often considered a "gold standard" methodology for determining the effectiveness of interventions. However, the complex nature of schools presents challenges for implementing successful…

Background: The data revolution in education has led to more data collection, more randomized controlled trials (RCTs), and more data collection within RCTs. Often following IES recommendations, researchers studying program effectiveness gather data on how the intervention was implemented. Educational implementation data can be complex, including…

This article examines the implementation, participation rates, and potential determinants of participation in the digital addiction prevention program "ready4life." A two-arm cluster-randomized trial recruited German vocational students via class-based strategies. Intervention group received 16 weeks of in-app coaching; the control group…

In multisite trials, learning about treatment effect variation across sites is critical for understanding where and for whom a program works. Unadjusted comparisons, however, capture "compositional" differences in the distributions of unit-level features as well as "contextual" differences in site-level features, including…

The purpose of the current study was to examine the dosage and fidelity of EMT en Español strategies that are posited to drive change in child outcomes. The study is a re-analysis of data collected during the National Institutes of Health (NIH) R21 grant "Teaching Spanish-speaking Caregivers to Implement EMT en Español: A Small Randomized…

In multisite trials, learning about treatment effect variation across sites is critical for understanding where and for whom a program works. Unadjusted comparisons, however, capture "compositional" differences in the distributions of unit-level features as well as "contextual" differences in site-level features, including…

When a researcher tests an educational program, product, or policy in a randomized controlled trial and detects a significant effect on an outcome, the intervention is usually classified as something that "works." When expected effects are not found, there is seldom an orderly and transparent analysis of plausible reasons why.…

Although advances have been made in facilitating the implementation of evidence-based treatments, little is known about the most effective way to sustain their use over time. The current study examined the sustainability of one evidence-based treatment, Parent-Child Interaction Therapy (PCIT), following a statewide implementation trial testing…

In 2015, Abt Associates received a grant from the Institutes for Education Sciences (IES) for a five-year "Development and Innovation" study of PTC. The purposes of the study were to gauge progress in implementing PTC and to develop and test improvements where needed. Fein et al. (2020) summarize the IES study's approach and findings. A…

This paper describes a 12-week cluster randomized controlled trial that examined the efficacy of BookNook, a virtual tutoring platform focused on reading. Cohorts of first- through fourth-grade students attending six Rocketship public charter schools in Northern California were randomly assigned within grades to receive BookNook. Intent-to-Treat…

Motivational interviewing (MI) is applied in a variety of clinical and coaching models to promote behavior change, with increasing interest in its potential to optimize school-based implementation fidelity. Yet there has been less consideration of fidelity indicators for MI-embedded coaching and links to outcomes. We leveraged secondary data from…

This study presents findings from a 58 high-school group-randomized controlled trial testing the effectiveness of training in a multitiered system of supports for behavior (MTSS-B) framework, which was leveraged to reduce students' risk for emotional and behavior disorders. The trial tested the impact of MTSS-B, which included (a) training in the…

Research in the UK suggests that multi-componential interventions focusing on language and pre-literacy skills can improve children's reading and language skills. However, simple translations of such programmes may not produce equivalent effects in diverse communities. The reasons for this are multi-faceted and include factors beyond the rationale…

Background: While implementation studies in aphasia management have shown promising improvements to clinical practice, it is currently unknown if aphasia implementation outcomes are sustained and what factors may influence clinical sustainability. Aims: To evaluate the sustainment (i.e., sustained improvement of aphasia management practices and…