The distribution of the standardized mean difference is well understood. However, in many situations, researchers need to estimate an effect size to represent the relationship between a continuous outcome and a dichotomous grouping variable, adjusting for the effect of a covariate (or a set of covariates). Typically, this adjustment takes place…

Test preparation has garnered considerable attention in second language (L2) education due to the significant implications that successful performance on a language test may have for academic advancement, future career opportunities, and immigration prospects. Meanwhile, an overemphasis on test preparation has been criticized for encouraging the…

Purpose: Early language intervention is essential for children with indicators of language delay. Enhanced milieu teaching (EMT) is a naturalistic intervention that supports the language development of children with emerging language. We conducted a systematic review and meta-analysis of all qualifying single-case and group design studies that…

Second language (L2) learners' beliefs about the nature of language learning, specifically language mindsets, is a recent productive line of L2 research. Researchers argue that language mindsets are key factors for language learning success. However, the association between language mindsets and different language learning outcomes is inconsistent…

The purpose of this study is to "meta"-analytically evaluate research that used chemical bonding-based interventions to improve academic performance. Through "meta"-analysis, the present study used several keyword patterns (e.g., chemical bonding, experimental, chemistry education, science education) via relevant databases…

This study builds on the simulation framework of a recent paper by Stanley and Doucouliagos ("Research Synthesis Methods" 2023;14;515--519). S&D use simulations to make the argument that meta-analyses using partial correlation coefficients (PCCs) should employ a "suboptimal" estimator of the PCC standard error when…

This study aims to identify the mean alpha coefficients of the Child PTSD Symptom Scale (CPSS-5) and examine the moderator role of trauma type and study location. We included studies using the CPSS-5 and reporting a Cronbach's alpha coefficient. Our analysis of 27 studies (k = 31) revealed a mean alpha coefficient of 0.91 for the CPSS-5. Mean…

Meta-analysis methodology has evolved with the development of more robust statistical techniques; however, few reviews in special education have focused specifically on methodological rigor in meta-analyses. In this study, we examined 29 meta-analyses of mathematics interventions published from 2000 to 2022 to determine the extent to which…

Naturalistic Developmental Behavioral Interventions have been described as culturally responsive and family-friendly interventions, with research demonstrating improvements in children's development when receiving these services. Given the child-directed nature of Naturalistic Developmental Behavioral Interventions and the intervention's…

The widespread benefits of creativity have become more salient in recent years. This has led to scholarly interest in finding ways to foster creativity. Nature immersion may be one way to enhance creativity, particularly as many individuals involved in creative pursuits have found nature to be a source of inspiration and a haven for restoration.…

Purpose: This article argues that the potential of the vast amount of research, published each year in the history of education, remains untapped. Given the rapidly growing number of academic publications in the field, there is a need for research that is based on articles, chapters and monographs already published. While analyses of existing…

Article content and author characteristics were analysed in the articles published in the "British Journal of Guidance and Counselling" (BJGC) from 2000-2019 to determine trends over time. The "BJGC" publishes more total articles and guidance and counselling research articles annually than any other guidance and counselling…

According to the socio-ecological model, the social environment contributes to the acquisition and maintenance of negative attitudes towards ethnic minority groups. However, the strength of the association between negative attitudes at different levels (i.e. individual, peers) and ethnic bullying and discrimination has not yet been assessed. A…

Purpose: Accelerating the adoption of intensification methods is critical for improving African agricultural productivity growth. This study synthesizes the effect of determinants underlying the speed of adoption of agricultural intensification methods in Africa. Design/Methodology/Approach: A systematic literature search was conducted using…

Negative cognitions play a key role in the development and maintenance of depression. To reduce depressive symptoms, most interventions either encourage adolescents to change negative cognitions, theorizing that the presence of negative cognitions underlies depression, or to acknowledge negative cognitions, theorizing that one's reaction to…