In random-effects meta-analysis the between-study variance ([tau][superscript 2]) has a key role in assessing heterogeneity of study-level estimates and combining them to estimate an overall effect. For odds ratios the most common methods suffer from bias in estimating [tau][superscript 2] and the overall effect and produce confidence intervals…

This paper considers the problem in aggregate data meta-analysis of studies reporting multiple competing binary outcomes and of studies using different summary formats for those outcomes. For example, some may report numbers of patients with at least one of each outcome while others may report the total number of such outcomes. We develop a shared…

This meta-analysis study synthesized the intervention effects of Check-in/Check-out (CICO), the most common Tier 2 behavior intervention used in schools. Systematic review procedures were employed to examine six CICO studies that were evaluated using a group research design and that involved 146 students. Studies were coded to examine their…

This methodological guidance article discusses the elements of a high-quality meta-analysis that is conducted within the context of a systematic review. Meta-analysis, a set of statistical techniques for synthesizing the results of multiple studies, is used when the guiding research question focuses on a quantitative summary of study results. In…

Diagnostic accuracy studies often evaluate diagnostic tests at several threshold values, aiming to make recommendations on optimal thresholds for use in practice. Methods for meta-analysis of full receiver operating characteristic (ROC) curves have been proposed but still have deficiencies. We recently proposed a parametric approach that is based…

This study aims to reinterpret the findings of the studies investigating the effectiveness of using infographics on academic achievement. A mixed methods research design including both quantitative and qualitative sections was adopted on the use of infographics in education. For this purpose, a meta-analysis of 12 empirical studies on the effect…

It is often challenging to present the available evidence in a timely and comprehensible manner. We aimed to visualize the evolution of evidence about antidepressants for depression by conducting cumulative network meta-analyses (NMAs) and to examine whether it could have helped the selection of optimal drugs. We built a Shiny web application that…

The aim of this research is to analyze the effect of the flipped learning model on the academic success of students. In this research featuring a descriptive survey model, a quantitative research method has been used. While criterion sampling method has been used for selecting the sample of this research, meta-analysis has been used to analyze the…

This research aims to analyze studies that have investigated the effects of teacher empowerment on job satisfaction. From the results obtained from the meta-analytic structural equation modeling of 11 studies (N = 19,462), it has been found that the teacher empowerment model and job satisfaction are meaningfully correlated. The findings have also…

The idea of a "creativity crisis" is widely accepted in the creativity and education literature. Its popular interpretation as a decline in creativity across generations originates from Kim's (2011) influential analysis of the re-norming data in the Torrance Tests of Creative Thinking (TTCT). The present work offers a critical review and…

This meta-analysis synthesized 26 published single-case design (SCD) studies on Tier 2 behavior interventions implemented within the educational framework of school-wide positive behavioral interventions and supports. We used Tau-U indices to determine the overall magnitudes of effect of the Tier 2 behavior interventions and the potential…

Numerous studies have been conducted to date on the effectiveness of the flipped classroom. However, the results of studies reporting on the model are generally inconsistent. The aim of this research was to evaluate the results of these primary studies in a comprehensive manner, and to obtain general results to document the effectiveness of…

School climate is one of the variables that affect academic achievement, but the level of correlation between school climate and academic achievement differs. On the basis of these inconsistent results between school climate and academic achievement, researchers can use meta-analyses to shed light on relevant literature. The present study ran a…

Family involvement is a cornerstone of early intervention (EI). Therefore, positive caregiver outcomes are vital, particularly in caregiver-implemented interventions. As such, caregiver instructional approaches should optimize adult learning. This study investigated the comparative efficacy of coaching and traditional caregiver instruction on…

The What Works Clearinghouse (WWC) seeks to provide practitioners information about "what works in education." One challenge in understanding "what works" is that effect sizes may not be comparable across studies, which limits the ability to compare the relative effectiveness of multiple interventions. One factor that…