Meta-analyses are systematic summaries of research that use quantitative methods to find the mean effect size (standardized mean difference) for interventions. Critics of meta-analysis point out that such analyses can conflate the results of low- and high-quality studies, make improper comparisons and result in statistical noise. All these…

Task-based language teaching (TBLT) is an empirically investigated pedagogy that has garnered attention from language programs across the globe. TBLT provides an alternative to traditional grammar translation or present-practice-produce pedagogies by emphasizing interaction during authentic tasks. Despite several previous meta-analyses…

The Supplemental Educational Services (SES) policy, under No Child Left Behind, requires underperforming Title I schools to offer academic tutoring to eligible students. A meta-analysis of findings from 44 external evaluations of district operated SES programs in Ohio showed that scores increased on the academic performance of at-risk students.…

We meta-analyze for impact and cost-effectiveness 94 studies from 47 conditional cash transfer programs in low- and middle-income countries worldwide, focusing on educational outcomes that include enrollment, attendance, dropout, and school completion. To conceptually guide and interpret the empirical findings of our meta-analysis, we present a…

The objective of the present study is to review the evidence on the effectiveness concerning the Saluda program, a school-based substance use prevention protocol used amongst adolescents. We provide a description of the program content and the results from nine controlled trials evaluating the program effectiveness. Participants were Spanish…

This paper uses data from the Head Start Impact Study (HSIS), a nationally representative multisite randomized trial, to quantify variation in effects of Head Start during 2002-2003 on children's cognitive and socio-emotional outcomes relative to the effects of other local alternatives, including parent care. We find that (1) treatment and control…

Between 2007 and 2009, reports were released on the results of three separate large-scale random assignment studies of the effectiveness of school-based mentoring programs for youth. The studies evaluated programs implemented by Big Brothers Big Sisters of America (BBBSA) affiliates (Herrera et al., 2007), Communities In Schools of San Antonio,…

Recent years have seen increasing interest in assessing the prestige and productivity of programs in communication. An NCA doctoral reputational study was published in 2004, and a new National Research Council assessment is underway that will for the first time include the communication field. Two systems relying on objective appraisal of faculty…

Over the last decade, more and more public and private stakeholders, in developed and developing countries, have been supporting 1:1 initiatives in education (i.e. every child receives her/his own personal computing device). These 1:1 initiatives represent a qualitative move forward from previous educational experiences with ICT, inasmuch as every…

During the 2009-2010 school year, Marzano Research Laboratory (MRL) was commissioned by Promethean Ltd. to conduct a second year evaluation study of the effects of Promethean ActivClassroom on student academic achievement. This report describes the findings from the second year study along with aggregate findings from the first and second year…

The purpose of this issue of "New Directions for Evaluation" is to examine, comparatively, the practical application of theorists' approaches to evaluation by examining four evaluations of the same case. The thought is that when asked to evaluate the same program (holding the case constant), the practical distinctions between theorists' approaches…

To examine the effects of the language experience approach (LEA) on beginning reading achievement, a study analyzed five projects conducted as part of the United States Office of Education first grade studies and 32 additional studies comparing basal reading approaches to LEA. Using two methods of quantitative synthesis (vote-counting and…

Title I of the Elementary and Secondary Education Act was implemented in 1965 to provide financial assistance to state and local education agencies to meet the special needs of educationally disadvantaged children. Federal funding supports a variety of supplemental services that share the collective purpose of improving educational opportunities…

The objective of this study was to evaluate quantitatively through meta analysis the effectiveness of child sexual-abuse prevention programs conducted over the past 10 years. Eighteen controlled studies evaluating such programs were coded for salient features and study outcomes and were then described using the common scale of effect size. An…