Using Toulmin's argumentation theory, we analysed the texts of systematic reviews in the area of workplace health promotion to explore differences in the modes of reasoning embedded in reports of narrative synthesis as compared with reports of meta-analysis. We used framework synthesis, grounded theory and cross-case analysis methods to analyse 85…

Phase I trials aim to establish appropriate clinical and statistical parameters to guide future clinical trials. With individual trials typically underpowered, systematic reviews and meta-analysis are desired to assess the totality of evidence. A high percentage of zero or missing outcomes often complicate such efforts. We use a systematic review…

Network meta-analysis is used to simultaneously compare multiple treatments in a single analysis. However, network meta-analyses may exhibit inconsistency, where direct and different forms of indirect evidence are not in agreement with each other, even after allowing for between-study heterogeneity. Models for network meta-analysis with random…

Dependent effect sizes are ubiquitous in meta-analysis. Using Monte Carlo simulation, we compared the performance of 2 methods for meta-regression with dependent effect sizes--robust variance estimation (RVE) and 3-level modeling--with the standard meta-analytic method for independent effect sizes. We further compared bias-reduced linearization…

The aim of this study is to investigate the relationship between frequency and language acquisition from many perspectives including implicit and explicit instruction, frequency effects on morpheme acquisition in L2, the relationship between frequency and multi-word constructions, frequency effects on phonetics, vocabulary, gerund and infinitive…

The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) was utilized for the reporting of the research literature in "The Journal for Specialists in Group Work" (JSGW) since a 1997 special issue focused on contemporary issues in the research of group work was published. The focus of this review was to explore the…

Measures of socioeconomic status (SES) are routinely used in analyses of achievement data to increase statistical power, statistically control for the effects of SES, and enhance causality arguments under the premise that the SES-achievement relationship is moderate to strong. Empirical evidence characterizing the strength of the SES-achievement…

Group contingencies are recognized as a potent intervention for addressing challenging student behavior in the classroom, with research reviews supporting the use of this intervention platform going back more than four decades. Over this time period, the field of education has increasingly emphasized the role of research evidence for informing…

The Individuals with Disabilities Education Improvement Act requires that functional behavior assessments be conducted under certain circumstances for students with disabilities. Functional assessments may include indirect assessments (e.g., rating scales, interviews), direct-descriptive assessments (e.g., direct observations with conditional…

We conducted a meta-analysis of 16 existing studies to examine the nature of the comprehension problems for children who were second-language learners with poor reading comprehension despite adequate decoding. Results indicated that these children had deficits in oral language (d = -0.80), but these deficits were not as severe as their reading…

This article is based on a meta-ethnography of research about schools, school experiences and learning following the recent (post-market) introduction of personalisation policies in Swedish schools. It pays particular attention to issues of equity. Tensions between personalisation, privatisation and equity are discussed and it is noted that…

In this article, several ways to adjust gross school effects are discussed to set the stage for estimating treatment effects in schooling. Although it is quite hazardous to hypothesize realistic benchmarks for results from meta-analyses, because of the dependency of effect sizes on subject matter area, grade level, and study characteristics, a…

Previous reviews have highlighted parent-child connectedness and communication as important protective factors against adolescent substance use. However, these reviews focus on single substances such as alcohol. An integrative review of the literature was conducted to examine which elements of parent-child connectedness and substance-use specific…

Applying meta-analytic review methods to evidence published in the past 20 years, this paper conceptualizes the critical path tying school leadership to student achievement by highlighting the importance of collective teacher efficacy (CTE). This paper presents the following: 1) CTE positively impacting student learning; 2) school leadership…

The current project aims at providing evidence-based implications for successful use of mobile technologies for teaching and learning. A systematic review of quantitative and qualitative research studies investigating the impact of tablet use on students' achievement has been undertaken. A targeted search and rigorous review of published research…