Education decisionmakers need access to the best evidence about the effectiveness of education interventions, including practices, products, programs, and policies. It can be difficult, time consuming, and costly to access and draw conclusions from relevant studies about the effectiveness of interventions. The What Works Clearinghouse (WWC)…

Underlying all What Works Clearinghouse (WWC) products are WWC Study Review Guides, which are intended for use by WWC certified reviewers to assess studies against the WWC evidence standards. As part of an ongoing effort to increase transparency, promote collaboration, and encourage widespread use of the WWC standards, the Institute of Education…

Intervention against cyberbullying and other risks associated with the misuse of ITC and social networks is an important social demand. The 'Asegúrate' Program tries to support teachers in this intervention. This research shows the impact of the program among those that have shown to be less sensitive in other studies: cyber-aggressors.…

Evaluating the impact of complex whole-school interventions (CWSIs) is challenging. However, what evidence there is suggests that school leadership and other elements of whole-school contexts are important for pupils' attainment (Leithwood et al., 2006), suggesting that interventions aimed at changing these have significant potential to improve…

Background: Despite the importance of breakfast consumption, breakfast skipping is common among Canadian youth. This study examines how changes to school-based breakfast programs are associated with breakfast-skipping behavior. Methods: Using school-level longitudinal data from Year 1 (Y[subscript 1]: 2012-2013) and Year 2 (Y[subscript 2]:…

Many states have scaled up School-Wide Positive Behavioral Interventions and Supports (SW-PBIS) with the goal of improving student behavior and academic outcomes. Although the effects of SW-PBIS on behavioral and discipline outcomes have been promising, the findings for academic achievement have been inconclusive and are often limited to…

Many states have scaled up School-Wide Positive Behavioral Interventions and Supports (SW-PBIS) with the goal of improving student behavior and academic outcomes. Although the effects of SW-PBIS on behavioral and discipline outcomes have been promising, the findings for academic achievement have been inconclusive and are often limited to…

This document provides step-by-step instructions on how to complete the Study Review Guide (SRG, Version S3, V2) for single-case designs (SCDs). Reviewers will complete an SRG for every What Works Clearinghouse (WWC) review. A completed SRG should be a reviewer's independent assessment of the study, relative to the criteria specified in the review…

Background: Few nutrition interventions in kindergarten classes have been evaluated, and none has been tested for program effectiveness, implementation, and dissemination. Building a Healthy Me (BHM) is a nutrition intervention for kindergarteners that is classroom-based and includes a family component. This study evaluated the public health…

Design-based methods have recently been developed as a way to analyze data from impact evaluations of interventions, programs, and policies. The impact estimators are derived using the building blocks of experimental designs with minimal assumptions, and have good statistical properties. The methods apply to randomized controlled trials (RCTs) and…

A new design-based theory has recently been developed to estimate impacts for randomized controlled trials (RCTs) and basic quasi-experimental designs (QEDs) for a wide range of designs used in social policy research (Imbens & Rubin, 2015; Schochet, 2016). These methods use the potential outcomes framework and known features of study designs…

Design-based methods have recently been developed as a way to analyze data from impact evaluations of interventions, programs, and policies (Imbens and Rubin, 2015; Schochet, 2015, 2016). The estimators are derived using the building blocks of experimental designs with minimal assumptions, and are unbiased and normally distributed in large samples…

Most of the students who set out to earn degrees in community colleges never do. Interventions that simplify the complex organizational structures of these schools are promising solutions to this problem. This article is the first to provide rigorous evidence of the effects of structured transfer programs, one such intervention. Leveraging the…

Today, more than half of the world population is under the age of 25 years and one in four is under age 18. The urgency of expanding access to Comprehensive Sexuality Education (CSE) notably for children and young people in Africa and Asia is greater than ever before. However, many challenges to the implementation and delivery of CSE in resource…

The purpose of this article was to systematically review the interventions aimed at reducing binge drinking in college students. A total of 18 interventions published between 2010 and 2015 were evaluated in this review. Two main study designs were used by these interventions: randomized controlled trials (RCTs) and quasi-experimental designs, with…