The meta-analytic random effects model assumes that the variability in effect size estimates drawn from a set of studies can be decomposed into two parts: heterogeneity due to random population effects and sampling variance. In this context, the usual goal is to estimate the central tendency and the amount of heterogeneity in the population effect…

Are preventive early childhood interventions effective in improving home environments, as assessed with the HOME inventory (Caldwell & Bradley, 1984)? The authors traced 48 published articles, presenting 56 intervention effects (N = 7,350). The combined effect size on the HOME total score was d = 0.20 (p less than 0.001). Randomized…

A meta-analysis is presented of 57 studies of sex differences in general population samples on the Standard and Advanced Progressive Matrices (SPM and APM, respectively). Results showed that there is no difference among children aged 6-14 years, but that males obtain higher means from the age of 15 through to old age. Among adults, the male…

This article presents a brief overview of existing research on the effects of exposure to violent video games. An updated meta-analysis reveals that exposure to violent video games is significantly linked to increases in aggressive behaviour, aggressive cognition, aggressive affect, and cardiovascular arousal, and to decreases in helping…

[Groot and Maassen van den Brink, 2000a] provide a useful summary of the incidence of overeducation and undereducation. Unfortunately, by combining non-compatible estimates of the impact of surplus schooling (and under schooling) on earnings they potentially bias their estimates downward (upward). This paper bypasses this potential bias by…

For decades a substantial body of research on teacher reflection and action has been conducted. This research contains a wealth of information on teachers' thinking about their daily work in classrooms. But what do these studies tell us about the linkage between thought and action in actual teaching? How do they contribute to our understanding, or…

This meta-analysis synthesizes the available data on the strength of association between anger and posttraumatic stress disorder (PTSD) and between hostility and PTSD, covering 39 studies with trauma-exposed adults. Effect sizes did not differ for anger and hostility, which could therefore be combined; effect sizes for anger expression variables…

Algebra student achievement has become a matter for increased focus in recent years, as educators answer calls for reform, including the standards documents of the National Council of Teachers of Mathematics and the No Child Left Behind mandates. A meta-analysis of 35 independent experimental studies shows that six teaching method categories have…

This monograph provides a portrait of non-tenure-track faculty, describes studies of their experiences, and proposes plans of action. Much of the research, particularly early on, tried to provide a picture and description of this faculty that have been largely invisible for years. Therefore, "Portrait of Non-Tenure-Track Faculty" focuses on the…

This literature review was commissioned by the National Foundation for Educational Research (NFER) to draw together current and recent studies of integrated working, in order to build an overview of the theories and models of such working. The review is important for current work on evaluating the early impact of integrated children's services and…

Although the subject has been debated and examined for more than 3 decades, it is still not clear whether all psychotherapies are equally efficacious. The authors conducted 7 meta-analyses (with a total of 53 studies) in which 7 major types of psychological treatment for mild to moderate adult depression (cognitive-behavior therapy, nondirective…

Sexual abuse in children not only occurs with alarming frequency, it also potentially leads to deleterious consequences for victims. Previous narrative reviews have touted the benefits of including the nonoffending caregiver in child sexual treatment. Objective: A meta-analysis is conducted to determine the effects of parent-involved treatment in…

This review sought to locate key themes in the literature on teaching and learning thinking and practices, by examining areas of influence and mapping ideas about the themes of practice, transfer and communities in higher education or related contexts. The findings indicate that issues of pedagogical stance, disjunction, learning spaces, agency,…

As populations in contemporary Western societies grow more diverse, the need for teachers to better understand and work with difference productively becomes increasingly critical (Allard & Santoro, 2006; D'Cruz, 2007). However, the literature on teacher education shows that historically, teacher education programs have aimed to address…

Background: A growing literature is questioning the appropriateness of a research dissertation for practitioners in education doctoral programs. Although this literature persuasively critiques the prevailing theory-research orientation of most programs and theses, it goes little beyond exhorting change and describing extant alternatives in a few…