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…

Research syntheses that evaluate bilingual program effectiveness have grown exponentially since the 1980s. Contradictory to earlier anti-bilingual findings, these research syntheses, including statistical meta-analyses, have converged on findings supporting L1 teaching. This study examines the methodological soundness of eight statistical…

The purpose of this study was to examine the effects of conflict resolution, peace education and peer mediation on the conflict resolution skills of students via meta-analysis method. 23 studies were determined to be in accordance with the study criteria. According to research findings conflict resolution, peace education and peer mediation…

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…

Background: Considerable attention has been focused on the impact of young people's alcohol use. To address this, schools often implement alcohol and drug education and there are many potential programmes to choose from. Objective: The aim of this study was to identify evidence-based alcohol education programmes for schools. Methods: A systematic…

The present review examines research on the effects of technology use on reading achievement in K-12 classrooms. Unlike previous reviews, this review applies consistent inclusion standards to focus on studies that met high methodological standards. In addition, methodological and substantive features of the studies are investigated to examine the…

Due to new standards in fostering life-long learning at school, research has increasingly dealt with the promotion of self-regulated learning, resulting in a large number of intervention studies conducted at primary and secondary school. The current study aimed at investigating the impact of various training characteristics on the training…

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…

Conclusion about site-specific determinants of educational outcomes of the controversial longitudinal evaluation of the Follow Through programs (1976) are challenged again by reexamining the Direct Instruction model data. Reanalysis confirms earlier critiques and supports more recent research funding on the relationship between types of…

The paper reports an attempt to evaluate instructional practices in compensatory education by looking at both costs and effects associated with the practices. The study covered some 300 Chapter l projects over a three-year period, focusing on project settings and instructional approaches used in the projects. Results of the study indicated that…

This article reviews the current policy context in the state of Arizona for program options for English language learners and produces a meta-analysis of studies on the effectiveness of bilingual education that have been conducted in the state in or after 1985. The study presents an analysis of a sample of evaluation studies (N = 4), which…

Eight articles discuss the teaching of evaluation methods through the process of performing evaluations. Four articles concentrate on evaluation as taught in higher education and professional education, and four articles deal with the four-state East Central Acquired Immune Deficiency Syndrome Education and Training Center Project. (SLD)

This What Works Clearinghouse (WWC) topic report addresses reading interventions for students in grades K-3, including core reading curricula, programs, or products to be used as supplements to other reading instruction, programs that focus on staff development, and literacy software. The WWC review on beginning reading focuses on programs…

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…