The goal of the current study is to examine the degree to which measures of quality of implementation and student engagement moderate pretest--posttest changes in mediating variables that are targeted by DARE "keepin' it REAL." DARE officers (10 elementary school, five middle school) taught DARE "keepin' it REAL lessons to 1,017…

This study examined waiting times for diagnostic assessment of Autism Spectrum Disorder in 11 adult services, prior to and following the implementation of a 12 month change program. Methods to support change are reported and a multi-level modelling approach determined the effect of the change program on overall wait times. Results were…

Discipline-based education researchers have a natural laboratory--classrooms, programs, colleges, and universities. Studies that administer treatments to multiple sections, in multiple years, or at multiple institutions are particularly compelling for two reasons: first, the sample sizes increase, and second, the implementation of the treatments…

Background: We examined the impact of the Fuel Up to Play 60 (FUTP60) program on children's body mass index (BMI) and aerobic capacity (AC). Methods: Participation in the FUTP60 and both BMI and AC profiles were collected through the NFL PLAY 60 FitnessGram Partnership Project involving over 100 schools from 22 US states. We specifically examined…

The literature on RTI has indicated that professional development and coaching are critical to facilitating problem-solving implementation with fidelity. This study examined the extent to which systems coaching related to the fidelity of problem-solving implementation in 31 schools from six districts. Schools participated in three years of a…

K-12 intervention studies often include fidelity of implementation (FOI) as a mediating variable, though most do not report the validity of fidelity measures. This article discusses the critical need for validated FOI scales. To illustrate our point, we describe the development and validation of the Implementation Validity Checklist (IVC-R), an…

Data from a large-scale math intervention program were used to evaluate the degree to which implementation fidelity (IF) and interventionist content knowledge were associated with student outcomes. Data were available for 33 interventionists serving 658 students in Grades 4-6 across one school year. A series of multilevel models were fit to the…

Background: Fundamental motor skill (FMS) interventions when delivered by an expert can significantly improve the FMS of young children with and without developmental delays. However, there is a gap in the literature as few early childhood centers employ experts with the professional background to deliver FMS intervention. Purpose: The primary…

The purpose of this study was to document within-year fidelity growth during installation and initial implementation of School-Wide Positive Behavioral Interventions and Supports (SWPBIS). Participants included school teams from schools throughout the United States that were in years 1 to 4 of SWPBIS implementation and routinely evaluated their…

The purpose of this study was to document within-year fidelity growth during installation and initial implementation of School-Wide Positive Behavioral Interventions and Supports (SWPBIS). Participants included school teams from schools throughout the United States that were in years one to four of SWPBIS implementation and routinely evaluated…

Transition to middle school in Portugal is associated with increased levels of stress for students, as well as an increase in grade retention. This study investigated the impact of a school adjustment program designed to support students during this transition, and its differential results by gender and fourth-grade class size. Multilevel linear…

The research on professional development (PD) consists mostly of studies utilizing cross-sectional data. We examined effects of change in school-level PD on change in teachers' practice longitudinally. Using survey reports from 1,722 teachers in 31 schools implementing a popular comprehensive school reform (America's Choice), we found that…

This study examines how system-wide (i.e., region, district, and school) mechanisms such as leadership support, training requirements, structure, collaboration, and education affect the use of evidence-based practices (EBPs) in schools and how this affects the outcomes for students with autism spectrum disorder (ASD). Despite growing evidence for…

This study extends previous research investigating the effects of state-wide exit exams by studying the change from a class-based to a state-wide exit exam system over 5 years, using multilevel analyses and examining mediating effects of teachers' practices on students' motivational orientations. In this multi-cohort study, we analyzed in…

Background: School administrators and teachers face difficult decisions about how best to use school resources to meet academic achievement goals. Many are hesitant to adopt prevention curricula that are not focused directly on academic achievement. Yet, some have hypothesized that prevention curricula can remove barriers to learning and, thus,…