This volume is a unique contribution to the study of language policy and education for English Learners because it focuses on the decade long implementation of "English Only" in Arizona. How this policy influences teacher preparation and classroom practice is the central topic of this volume. Scholars and researchers present their latest…

Purpose: The current literature examining the design of effective online learning opportunities recommends an array of best practices but no agreed upon and unifying model. The purpose of this paper is to survey the existing research of effective design models for online learning in an attempt to identify best practices and present a new model.…

Western Illinois University Libraries has cut online serials subscriptions in the past 2 years. The librarians were guided by the statistics for downloads provided by the publishers of the journals. However, questions were raised by both professors and librarians regarding the exact meaning of the statistics. This caused the electronic resources…

Tracing the connections from brain functions to children's cognitive development and education is a major goal of modern neuroscience. We performed the first meta-analysis of functional magnetic resonance imaging (fMRI) data obtained over the past decade (1999-2008) on more than 800 children and adolescents in three core systems of cognitive…

The three-dimensional (3D) virtual world is one of the current innovations that has been discussed extensively as the potential medium for online distance education. Despite the heated discussion on the possible applications of 3D virtual worlds for distance education, empirical studies were hard to locate, and little has been written about how…

Objective: Outcome research has documented worsening among a minority of the patient population (5% to 10%). In this study, we conducted a meta-analytic and mega-analytic review of a psychotherapy quality assurance system intended to enhance outcomes in patients at risk of treatment failure. Method: Original data from six major studies conducted…

Background: Persons with intellectual disabilities (ID) often show challenging behaviour. We review distinct interventions that are applied to treat these challenging behaviours, and analyse intervention effects and moderating variables. Methods: A literature search was conducted using the databases "ERIC," "PsycINFO," "Web of Science" and…

The current set of meta-analyses elucidates the long-term psychiatric, psychosocial, and physical consequences of the Holocaust for survivors. In 71 samples with 12,746 participants Holocaust survivors were compared with their counterparts (with no Holocaust background) on physical health, psychological well-being, posttraumatic stress symptoms,…

Purpose: The Picture Exchange Communication System (PECS) is a popular communication-training program for young children with autism spectrum disorders (ASD). This meta-analysis reviews the current empirical evidence for PECS in affecting communication and speech outcomes for children with ASD. Method: A systematic review of the literature on PECS…

Objective: It is widely believed that psychological treatment has little effect on more severely depressed patients. This study assessed whether pretreatment severity moderates psychological treatment outcome relative to controls by means of meta-analyses. Method: We included 132 studies (10,134 participants) from a database of studies…

Research on the predictors of 3 bully status groups (bullies, victims, and bully victims) for school-age children and adolescents was synthesized using meta-analytic procedures. The primary purpose was to determine the relative strength of individual and contextual predictors to identify targets for prevention and intervention. Age and how…

The purpose of this article is to present Convergent Evidence Scaling (CES) as an emergent method for combining data from multiple assessment indicators. The CES method combines single-case assessment data by converging data gathered across multiple persons, settings, or measures, thereby providing an overall criterion-referenced outcome on which…

Objective: The authors conducted a meta-analytic review of adherence-outcome and competence-outcome findings, and examined plausible moderators of these relations. Method: A computerized search of the PsycINFO database was conducted. In addition, the reference sections of all obtained studies were examined for any additional relevant articles or…

A review of the literature from 1965 to 2008 on tactile maps and models in orientation and mobility yielded four pre-experimental and three experimental articles. The articles were analyzed via best-evidence synthesis--a combined narrative and statistical approach--allowing for recommendations for the most effective use of tactile maps and models.…

A meta-analysis was conducted to determine relationships between team training and team effectiveness. Results from the 21 studies provided evidence that training is positively related to team effectiveness and effectiveness in five outcome categories: affective, cognitive, subjective task-based skill, objective task-based skill, and teamwork…