The research literature is rich on innovations in R&D-specific organizations and provides useful information on support systems and other organizational features associated with such specialized organizations. An implied assumption of many studies is that R&D exists as an independent entity, without controls or influences from the other…

Since its introduction 30 years ago, family boundary ambiguity (BA) has been a widely used construct in family stress research and clinical intervention. In this article, we present a comprehensive and interdisciplinary review of published research studies that have used BA as a primary variable. Our review identified 37 studies investigating BA…

This report summarizes findings on strategies chosen by students (n=38) when solving algebra problems related to various functions with the freedom to use a TI-83 graphing calculator, influences on student problem-solving strategy choices, student ability to approach algebra problems with use of multiple representations, and student beliefs on how…

This article reviews research on the Minimalist instructional design model, a learner-centred approach to the design of instructional materials such as computer program manuals or on-line help. Studies in this paradigm have typically compared minimalist materials against traditional "system-centred" materials. Additionally, some studies have…

This paper uses meta-analysis to investigate whether random assignment (or experimental) evaluations of voluntary government-funded training programs for the disadvantaged have produced different conclusions than nonexperimental evaluations. Information includes several hundred estimates from 31 evaluations of 15 programs that operated between…

This article extends the issues and arguments raised in Bernard, Abrami, Lou, and Borokhovski ("Distance Education", 25(2), 175-198, 2004) regarding the design of quantitative, particularly experimental research in distance education. A single experimental, study from the distance education literature is examined from six different perspectives to…

The results of the clinical versus statistical prediction meta-analysis support the longstanding finding that statistical methods are superior to clinical methods in making predictions. In this reaction, the authors discuss the findings from the perspective of the context of discovery and the context of justification, the client model-building…

This article presents comments on the original article "Patterns of Mean-Level Change in Personality Traits Across the Life Course: A Meta-Analysis of Longitudinal Studies," by B. W. Roberts, K. W. Walton, and W. Viechtbauer. Although Roberts et al depicted the present authors as proponents of the immutability of traits, in fact we have…

For at least 40 years, there has been a recurring argument concerning the nature of experimental amnesia, with one side arguing that amnesic treatments interfere with the formation of enduring memories and the other side arguing that these treatments interfere with the expression of memories that were effectively encoded. The argument appears to…

This meta-analysis examines the relationship between active coping and psychosocial health among youth. Results from 40 studies of coping with interpersonal stress were synthesized using a random-effects model. Four areas of psychosocial functioning were examined: externalizing and internalizing behavior problems, social competence, and academic…

Over the past several decades, researchers, politicians, and corporate leaders have focused reform efforts on the size of educational contexts. Hundreds of billions of public and private dollars have been invested to reduce the size and scope of both classrooms and schools (Lee & Ready, 2007). Unlike many education reforms, these downsizing…

This report presents findings from a review of the best evidence on narrowing the gap in outcomes across the five Every Child Matters (ECM) areas for vulnerable groups in the context of improving outcomes for all. The review was commissioned to prepare the ground for work on "Narrowing the Gap" with participating local authorities (LAs).…

This study examined the effects of training on peer assessment and comments provided regarding oral presentations in EFL (English as a Foreign Language) classrooms. In Study 1, both the treatment and control groups received instruction on skill aspects, but only the treatment group was given an additional 40-minute training on how to rate…

One of the major series of reviews in elementary and secondary education is the Best Evidence Encyclopedia, or the BEE. Up to now, findings for systematic reviews have largely been restricted to the reviews themselves, with few cases in which lessons learned across many reviews using similar methods can be synthesized. The completion of the Best…

This article systematically reviews research on the achievement outcomes of four types of approaches to improving the beginning reading success of children in kindergarten and first grade: Reading curricula, instructional technology, instructional process programs, and combinations of curricula and instructional process. Study inclusion criteria…