This article presents a meta-analysis of experimental and quasi-experimental studies in which intermediate and secondary students with learning disabilities were taught science content through the use of graphic organizers (GOs). Following an exhaustive search for studies meeting specified selection criteria, 23 standardized mean effect sizes were…

In this article the author reviews and discusses John Hattie's book "Visible Learning". In this book Hattie presents the results of a meta-meta-analysis on the conditions of successful teaching and learning in schools. Hattie's work is based on more than 800 meta-analyses, and these meta-analyses are substantiated by more than 50 000…

Objective: Several studies have demonstrated differences in omega-3 fatty acid composition in plasma and in erythrocyte membranes in patients with attention-deficit/hyperactivity disorder (ADHD) compared with unaffected controls. Omega-3 fatty acids have anti-inflammatory properties and can alter central nervous system cell membrane fluidity and…

Objective: Motivational interviewing (MI) is a treatment approach that has been widely examined as an intervention for tobacco dependence and is recommended in clinical practice guidelines. Previous reviews evaluating the efficacy of MI for smoking cessation noted effects that were modest in magnitude but included few studies. The current study is…

Continuing learning is central to the professions of teaching and teacher education. Research that explores the nature of professional learning and the conditions that promote it is limited. In this paper I examine my own involvement and that of other teachers and teacher educators in five practice-based research studies in terms of our…

This study entails the use of meta-analytic techniques to calculate and analyze 18 independent and 52 nonindependent effect sizes across 17 published studies of psychological assessment as a therapeutic intervention. In this sample of studies, which involves 1,496 participants, a significant overall Cohen's d effect size of 0.423 (95% CI [0.321,…

Objective: The present study aims to examine gender differences in attitudes toward professional psychological help-seeking behavior and how gender differences could be affected by other cultural factor such as race. Participants: The authors selected studies that involved undergraduate and graduate students as samples, making the total number of…

This systematic review establishes a comprehensive understanding of research trends and the findings of current studies that focus on small-group communication in post-secondary online courses. The review includes 18 journal articles which are categorised and summarised on the basis of their common themes. This review finds that a majority of the…

A vertical scale, in principle, provides a common metric across tests with differing difficulties (e.g., spanning multiple grades) so that statements of "absolute" growth can be made. This paper compares 16 states' 2007-2008 effect size growth trends on vertically scaled reading and math assessments across grades 3 to 8. Two patterns…

The best available evidence is one of the three critical features of evidence-based practice. Best available evidence is often considered to be synonymous with extremely high standards for research methodology. However, this notion may limit the scope and impact of evidence based practice to those educational decisions on which high quality…

In this article, the authors consider the power and limitations of responsiveness-to-intervention (RTI) for reducing the need for ongoing and intensive services for the segment of the school population traditionally identified as having a learning disability in mathematics. To assess the robustness of RTI, the authors describe four studies with…

Blended or hybrid course offerings in higher education are commonplace and much has been written about how to design a blended course effectively. This study examines publically available guides, documents, and books that espouse best or effective practices in blended course design to determine commonalities among such practices. A qualitative…

The purpose of this article is to synthesize the available studies regarding responsive interaction intervention (RII) for children with or at risk for developmental delays with a focus on six dimensions: (a) the characteristics of participants, (b) the features of RII, (c) the measurement of treatment fidelity, (d) the overall effectiveness of…

Problem based learning (PBL) in its most current form originated in Medical Education but has since been used in a variety of disciplines (Savery & Duffy, 1995) at a variety of educational levels (Savery, 2006). Although recent meta analyses have been conducted (Dochy, Segers, Van den Bossche, & Gijbels, 2003; Gijbels, Dochy, Van den…

The critical issue in special education today is no longer the assurance of access, but rather, the assurance of effectiveness. Determining which practices and interventions are most effective and efficient for ensuring optimal student achievement is a fundamental concern of special education teachers in this era of accountability. In this…