The purpose of this article is to provide an alternative interpretation of the National Reading Panel's meta-analysis on phonics instruction. The NRP based its conclusion that phonics instruction was superior to other approaches on the interpretation of mean effect d statistics reported in its meta-analysis. In addition to looking at these d's, we…

This Research Update synthesizes findings from the profiles of 15 research and evaluation reports added to the Out-of-School Time Program Research and Evaluation Database in December 2006. It highlights strategies for assessing program processes as well as key outcomes and features of programs that promote positive outcomes. The Harvard Family…

In the USA, many environmental educators have paid little attention to Western Christian and Jewish ecotheology, in spite of its being a potentially rich resource for environmental education. In part, this neglect can be attributed to popular misconceptions about the influence of religious beliefs on environmental values. This essay reviews the…

As part of the accountability movement, schools are increasingly called upon to provide interventions that are based on sound scientific research and that provide measurable outcomes for children. Brain Gym[R] is a popular commercial program claiming that adherence to its regimen will result in more efficient learning in an almost miraculous…

A meta-analysis was performed to synthesize existing research comparing the effects of computer-assisted instruction (CAI) versus traditional instruction (TI) on students' achievement in Taiwan. Fifty-two studies were located from four sources, and their quantitative data was transformed into effect size (ES). The overall grand mean of the…

Practical meta-analysis of correlation matrices generally ignores covariances (and hence correlations) between correlation estimates. The authors consider various methods for allowing for covariances, including generalized least squares, maximum marginal likelihood, and Bayesian approaches, illustrated using a 6-dimensional response in a series of…

The relationship between intelligence and socioeconomic success has been the source of numerous controversies. The present paper conducted a meta-analysis of the longitudinal studies that have investigated intelligence as a predictor of success (as measured by education, occupation, and income). In order to better evaluate the predictive power of…

Using meta-analysis, randomized experiments in education that either clearly did or clearly did not experience student attrition were examined for the baseline comparability of groups. Results from 35 studies suggested that after attrition, the observed measures of baseline comparability of groups did not differ more than would be expected given…

Early developmental prevention involves interventions designed to prevent the development of criminal potential in individuals, especially those that target risk and protective factors, in the early years of the life course. Developmental prevention is considered one of the major strategies in preventing delinquency and later offending. There is…

The purpose of this study is to compare attitudes toward inclusion among general education (GE) and special education (SE) teachers. Between 1997 and 2007, many changes took place within the Individuals with Disabilities Act and in 2002 the introduction of No Child Left Behind. This meta-synthesis examines the teacher's attitude towards inclusion.…

Since the 1960s, there have been continuing federal efforts to bring reform to scale in high-poverty elementary and secondary schools across the U.S. This paper traces the evolution of these efforts and discusses their impacts on achievement outcomes. Drawing on evidence from meta-analyses of the Title I evaluation literature and the Comprehensive…

For schools, creating an appropriate learning environment is critical. Edwards (2008) said "an improper learning environment strikes at the heart of the school's purpose" (p. 1). School discipline is extremely important because positive strong learning conditions are critical to student success and disciplinary problems are a continual…

This is a summary of 300 plus studies from Marzano Research Laboratory (MRL) on instructional strategies. This report synthesizes a series of action research projects conducted between the fall of 2004 and the spring of 2009. The data used for analysis can be found in MRL's Action Research Meta-Analysis Database. Appended are: (1) Instructions for…

The developing discourse which moves assessment away from a measurement model towards one of learner empowerment and the development of assessment for lifelong learning sets the context for this paper. Within this framework, we explore how the demands made on practitioners may influence current reported assessment practices. The reasons given by…

Language learners have unprecedented opportunities for developing second language literacy skills and intercultural understanding by reading authentic texts on the Internet and in multimedia computer-assisted language learning environments. This article presents findings from a meta-analysis of 11 studies of computer-mediated glosses in second…