This article focuses on applying systematic reviews to the Early Intervention (EI) literature. Systematic reviews are defined and differentiated from traditional, or narrative, reviews and from meta-analyses. In addition, the steps involved in critiquing systematic reviews and an illustration of a systematic review from the EI literature are…

The present report meta-analyzes more than 300 empirical articles describing a relationship between psychological stress and parameters of the immune system in human participants. Acute stressors (lasting minutes) were associated with potentially adaptive upregulation of some parameters of natural immunity and downregulation of some functions of…

This article examines the statistical determinants of risk preference. In a meta-analysis of animal risk preference (foraging birds and insects), the coefficient of variation (CV), a measure of risk per unit of return, predicts choices far better than outcome variance, the risk measure of normative models. In a meta-analysis of human risk…

The streamline is a basic position for competitive swimming starts mid turns and has been used in many studies on resistive forces. However, there is a wide yahweh, of theoretical interpretations in these studies, leading to diverse and questionable conclusions. The purpose of this study was to determine performance level differences in the…

Examined the findings of the "Teaching Children To Read" study of the National Reading Panel and the procedures of the study. Meta-analytic techniques found that the methodology and procedures were not adequate. Findings suggest that phonics, as an aspect of the complex reading process, should not be over-emphasized. (SLD)

The term "publication bias" usually refers to the tendency for a greater proportion of statistically significant positive results of experiments to be published and, conversely, a greater proportion of statistically significant negative or null results not to be published. It is widely accepted in the fields of healthcare and psychological…

Publication bias, sometimes known as the "file-drawer problem" or "funnel-plot asymmetry," is common in empirical research. The authors review the implications of publication bias for quantitative research synthesis (meta-analysis) and describe existing techniques for detecting and correcting it. A new approach is proposed that is suitable for…

This meta-analytic review combines the results of more than 60 studies to help determine the relative effects of work, nonwork, and demographic and individual factors on work interference with family (WIF) and family interference with work (FIW). As expected, work factors related more strongly to WIF, and some nonwork factors were more strongly…

There are a number of challenges facing those who set out to conduct systematic reviews of intervention effects in the social sciences. These challenges include formulation of a review problem, gathering data about relevant studies and outcomes, analyzing that data, and interpreting the results. The first challenge, formulating a workable review…

Comments on the article by J. S. Hyde (see record 2005-11115-001), in which Hyde provided an overview of the many meta-analyses that have compared men and women on psychological attributes. The current author argues that, despite the strengths of Hyde's study, a major problem with the analysis is its lack of a theoretical basis for considering sex…

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 report describes the findings of an analysis of a series of action research projects conducted by Vigo County School Corporation at Terre Haute North Vigo High School (hereinafter referred to as North Vigo). During the 2008-2009 school year, 19 teachers at North Vigo participated in independent action research studies regarding the extent to…

This article systematically reviews research on the achievement outcomes of four types of approaches to improving the reading success of children in the elementary grades: reading curricula, instructional technology, instructional process programs, and combinations of curricula and instructional process. Study inclusion criteria included use of…

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…