The District of Columbia (DC) Opportunity Scholarship Program (OSP) is the only federally funded program that provides vouchers to low-income families to send their children to private schools. Congress created the OSP in 2004 and reauthorized it in 2011 under the Scholarships for Opportunity and Results (SOAR) Act. As part of the 2011 SOAR Act,…

Much is known about short-term--but very little about the long-term--effects of reading interventions. To rectify this, a detailed analysis of follow-up effects as a function of intervention, sample, and methodological variables was conducted. A total of 71 intervention-control groups were selected (N = 8,161 at posttest) from studies reporting…

In Zambia, as elsewhere throughout sub-Saharan Africa, orphaned and vulnerable children (OVC) face multiple physical, emotional, social and psychological challenges which often negatively affect opportunities for educational attainment. REPSSI (Regional Psychosocial Support Initiative), in collaboration with, the University of Cape Town and other…

The District of Columbia Opportunity Scholarship Program (OSP) was created by Congress to provide tuition vouchers to low-income parents who want their child to attend a private school. The Scholarships for Opportunity and Results (SOAR) Act of 2011 also mandated an evaluation of the OSP program. This report examines impacts one year after…

The District of Columbia (DC) Opportunity Scholarship Program (OSP) was created by Congress in 2004 to provide tuition vouchers to low-income DC parents who want their child to attend a private school. Reauthorized in 2011 by the Scholarships for Opportunity and Results (SOAR) Act, the program places a priority on serving students leaving…

This guide for district and school leaders shows how to recognize opportunities to embed randomized controlled trials (RCTs) into planned policies or programs. Opportunistic RCTs can generate strong evidence for informing education decisions--with minimal added cost and disruption. The guide also outlines the key steps to conduct RCTs and responds…

Modern economics has placed lifelong learning (LLL) at the center of an intensive ongoing political debate. Evidenced-based interventions are needed, not only in continuing education courses for teachers, but also in schools. This paper introduces evaluation results of TALK, a teacher education program for professional teachers with the objective…

Purpose: The past decade has seen considerable debate about how to best evaluate the efficacy of educational improvement initiatives, and members of the educational leadership research community have entered the debate with great energy. Throughout this debate, the use of randomized experiments has been a particularly contentious subject. This…

This study contextualizes an effect-size-like index of educational treatment effects or any group mean differences in academic achievement by referencing time. The new effect size metric can enrich effect size interpretations while serving as a supplement (but not substitute) for conventional standardized effect size measures. Specifically, the…

Our current capacity to understand or provide a context for interpreting the size of an effect in education program evaluation is limited. To address the problem, this study proposes a time-indexed effect size metric (d') to estimate how long it would take for an "untreated" control group to reach the treatment group outcome in terms…

Findings from two studies are discussed in relation to the experiences and challenges faced by teachers trying to implement effective group work in schools and classrooms and to reflect on the lessons learnt about how to involve pupils with special educational needs (SEN). The first study reports on UK primary school teachers' experiences of…

KIPP (Knowledge is Power Program) is a national network of public charter schools whose stated mission is to help underserved students enroll in and graduate from college. Prior studies (see Tuttle et al. 2013) have consistently found that attending a KIPP middle school positively affects student achievement, but few have addressed longer-term…

KIPP (Knowledge is Power Program) is a national network of public charter schools whose stated mission is to help underserved students enroll in and graduate from college. Prior studies (see Tuttle et al. 2013) have consistently found that attending a KIPP middle school positively affects student achievement, but few have addressed longer-term…

KIPP (Knowledge is Power Program) is a national network of public charter schools whose stated mission is to help underserved students enroll in and graduate from college. Prior studies (see Tuttle et al. 2013) have consistently found that attending a KIPP middle school positively affects student achievement, but few have addressed longer-term…

With a growing movement to re-connect children to nature, an understanding of the ability of environmental education (EE) programs to foster connectedness to nature is needed. The purpose of this exploratory quantitative study is to determine the effect of seven EE programs on participants' connectedness to nature. Results from the 385 children…