High-quality preschool programs are heralded as an effective policy tool to promote the development and life-long wellbeing of children from low-income families. Yet evaluations of recent preschool programs produce puzzling findings, including negative impacts, and divergent, weaker results than were shown in demonstration programs implemented in…

The concept of evidence, the demand for evidence-based practice and decision-making has for years dominated educational research. Concomitantly, the randomized controlled trials (RCT) that originally gained ground within the field of medicine have become the gold standard for empirical research and political reform within educational sciences, at…

In the past few decades, we have seen a rapid proliferation in the use of quasi-experimental research designs in education research. This trend, stemming in part from the "credibility revolution" in the social sciences, particularly economics, is notable along with the increasing use of randomized controlled trials in the strive toward…

In a common approach for scaling up effective educational practice, schools adopt evidence-based programs to be implemented with fidelity. An alternative approach assumes that programs should be adapted to local contexts. In this randomized trial of a reading intervention, we study a scaffolded sequence of implementation in which schools first…

American Institutes for Research (AIR) is conducting an impact evaluation of The United Nations Children's Emergency Fund's (UNICEF's) teacher-training program and reinforcing text messages that aim to provide meaningful knowledge regarding the transformative potential of positive gender socialization in education for peace building in the region…

Challenge the Gap (CtG) is a school collaboration programme designed by Challenge Partners that aims to break the link between disadvantage and attainment. The main components of CtG are: (1) after-school workshops drawing on published research and evidenced practice; (2) focused in-school interventions with a selected cohort of disadvantaged…

Nationally, two-thirds of high school students are unable to read and comprehend complex academic materials, think critically about texts, and synthesize information from multiple sources, or communicate what they have learned. Without a substantial change in their academic literacy, U.S. high school students face continued academic problems in…

Kenya is investing in information and communication technology (ICT) to improve children's learning outcomes. However, the literature on ICT is pessimistic about the ability of ICT alone to improve outcomes, and few ICT programs have created the instructional change necessary to increase learning. The Primary Math and Reading (PRIMR) Initiative…

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…

Writing is an essential skill for participating in modern American society. Although it is crucial to careers and civic engagement, student writing falls far short of national expectations (College Board, 2004; NCES, 2012; Persky, Daane, & Jin, 2003). The Common Core State Standards (CCSS) seek to increase the rigor of writing instruction…

Studies of small-scale "model" early-childhood programs show that high-quality preschool can have transformative effects on human capital and economic outcomes. Evidence on the Head Start program is more mixed. Inputs and practices vary widely across Head Start centers, however, and little is known about variation in effectiveness within…

Recent work that has examined the impact of what are variously called periodic, interim, benchmark, or diagnostic assessments, typically administered three or four times during a school year, has produced mixed findings. For instance, one study reported small significant effects in mathematics in grades 3-8, but not in reading (Carlson et al.,…