The purpose of this research was to compare the performances of the Fixed Effect Model (FEM) and the Random Effects Model (REM) in the meta-analysis studies conducted through 5, 10, 20 and 40 studies with an outlier and 4, 9, 19 and 39 studies without an outlier in terms of estimated common effect size, confidence interval coverage rate and…

Higher-order thinking skills (HOT) are expected to be skills needed now and in the future. Many learning strategies are applied to increase HOT. However, how effective is this in improving students' HOT abilities? This study will examine how effective learning is to improve HOT thinking skills. We use meta-analysis research techniques to analyze…

Statistical learning is a key concept in our understanding of language acquisition. Ample work has highlighted its role in numerous linguistic functions--yet statistical learning is not a unitary construct, and its consistency across different language properties remains unclear. In a meta-analysis of auditory-linguistic statistical learning…

Meta-assessment is a useful strategy to document assessment practices and guide efforts to improve the culture of assessment at an institution. In this study, a meta-assessment of undergraduate and graduate academic program assessment reports evaluated the maturity of assessment work. Assessment reports submitted in the first year (75…

This study aims to analyze the effect of e-learning on VET learning, the factors that support the success of e-learning, and the role of e-learning in practical learning performance. This type of research was a quantitative study with a meta-analysis approach. A total of 18 articles on e-learning in VET learning were selected as samples. The 18…

This multiple paper dissertation addressed several issues revolving around the estimation of effect sizes for computer-based scaffolding in problem-centered STEM education. STEM jobs are outpacing all other jobs and STEM workers are expected to solve complex problems. However, students often struggle with complex problem activities. Research on…

The study of language maintenance and shift (LMS) has attracted a large body of empirical work in language policy and planning (LPP) contexts, including allochthonous (immigrant) and autochthonous (indigenous) languages. However, some critical ontological questions that relate to the scope and terminology of language maintenance studies remain…

When studies use different scales to measure continuous outcomes, standardised mean differences (SMD) are required to meta-analyse the data. However, outcomes are often reported as endpoint or change from baseline scores. Combining corresponding SMDs can be problematic and available guidance advises against this practice. We aimed to examine the…

The persistent skills gap in Africa poses a significant barrier to both economic growth and individual career advancement. While cognitive skills (CS) are well-recognized for their crucial role in enhancing employability, non-cognitive skills (NCS) have received less attention, especially in African labour markets. This systematic review examines…

Research syntheses that evaluate bilingual program effectiveness have grown exponentially since the 1980s. Contradictory to earlier anti-bilingual findings, these research syntheses, including statistical meta-analyses, have converged on findings supporting L1 teaching. This study examines the methodological soundness of eight statistical…

Mathematics teachers play the most pivotal role in reflecting students' abilities and interests, providing a conceptual understanding through high PCK. However, research that comprehensively analyses the available literature relating to factors that could affect mathematics teachers' PCK is still lacking. There is a compelling demand to strengthen…

Whether or not to teach grammar explicitly is an issue that has long been debated in the field of SLA. There seems to be a growing consensus among many researchers now in support of embedding some element of explicit instruction within a communicative curriculum. The main arguments in support of explicit instruction are threefold: two widely cited…

Almost all open educational resources (OER) definitions encompass key concepts such as the 5R activities and open licenses. However, little attention is given to the technical aspects and tools that allow the user to interact with these resources. This study aims to answer five research questions regarding (a) 5R activities, (b) open licenses and…

The current study describes an individual participant data meta-analysis (IPDMA) testing the efficacy of a peer-network counseling (PNC) intervention for preventing substance use escalation in adolescents and young adults. PNC has shown efficacy in reducing substance use among adolescents and young adults across small-scale randomized controlled…

Numerous primary studies and a recent meta-analytic confirmatory factor analysis (Meta-CFA; Said-Metwaly, Fernández-Castilla, Kyndt, & Van den Noortgate, 2018) have shown that Torrance Tests of Creative Thinking -- Figural (TTCT-F) consists of two factors. However, recent research has raised questions regarding factor analysis of the TTCT-F…