To determine the effects of explicit instruction (EI) and potential moderators in second/foreign language (L2) teaching, this study meta-analyzed 28 primary reports (a total of 67 unique samples, N = 3754). The main results show that EI was significantly effective in facilitating L2 development, with effect sizes ranging from moderate to large…

Background: The review aimed to investigate the effectiveness of parent-child relationship interventions for families of children with intellectual disability up to 12 years old. Methods: Quasi-experimental or randomised controlled trials (RCTs) of interventions targeting the parent-child relationship where =50% of children had an intellectual…

Psychological interventions are complex in nature and have been shown to benefit various clinical outcomes. Gaining insight into current practices would help identify specific aspects that need improvement to enhance the quality of network meta-analysis (NMA) in this field. This scoping review aimed to explore methodological approaches in the NMA…

In sparse data meta-analyses (with few trials or zero events), conventional methods may distort results. Although better-performing one-stage methods have become available in recent years, their implementation remains limited in practice. This study examines the impact of using conventional methods compared to one-stage models by re-analysing…

To investigate the association between exposure to anesthesia during three periods of pregnancy, delivery, and childhood and autism spectrum disorder (ASD). PubMed, Scopus, Web of Science, Embase, Google Scholar, PsycArticles, and PsycINFO were searched from the date of database inception to 1 December 2022. Studies reported the association…

The purpose of this meta-analysis is to synthesise the research evidence on the use of decodable texts in the teaching of word reading and pseudoword decoding to determine their effectiveness in facilitating the development of reading skills in children without reading disabilities. A total of 821 articles were identified in the initial search.…

Autism Spectrum Disorder (ASD) is a constellation of social communication problems in addition to unusual and repetitive behaviors. In this review, we aimed to investigate the effects of probiotics, prebiotics or synbiotics on gastrointestinal (GI) and behavioral symptoms of ASD. We searched the relevant literature in several electronic databases.…

This paper shares the results of a meta-analysis on the parental-expectations component of parental involvement and its relationship with the student outcomes of urban students. Special attention is paid to parental expectations, because in many past studies, parental expectations has been the most salient component of parental involvement. This…

This study aims to generalize the reliability of the GAAIS, which is known to perform valid and reliable measurements, is frequently used in the literature, aims to measure one of today's popular topics, and is one of the first examples developed in the field. Within the meta-analytic reliability generalization study, moderator analyses were also…

Systematic reviews and meta-analyses aggregate research findings across studies and populations, making them a valuable form of research evidence. Over the past decade, studies in medical education using these methods have increased by 630%. However, many manuscripts are not publication-ready due to inadequate planning and insufficient analyses.…

In this paper, we set out to examine children's voices on inclusion through a systematic review of empirical studies carried out in Cyprus over the past 20 years. Specifically, it focuses on research related to this field and investigates the ways in which these studies illustrate the importance of children's perspectives as a means for promoting…

We conducted a comprehensive, systematic review and meta-analysis on the effects of the BSCS 5E Instructional Model--and its related variants--on science, math, and motivation outcomes. The 5E Instructional Model is a framework for delivering STEM instruction that is based on constructivist learning theory; it has been used throughout the U.S. and…

Dynamic assessments (DAs) of word reading skills demonstrate strong criterion reference validity with word reading measures (WRMs). However, DAs vary in the skills they assess, their format and administration method, and the type of words and symbols used in test items. These characteristics may have implications on assessment validity. To compare…

Publication selection bias undermines the systematic accumulation of evidence. To assess the extent of this problem, we survey over 68,000 meta-analyses containing over 700,000 effect size estimates from medicine (67,386/597,699), environmental sciences (199/12,707), psychology (605/23,563), and economics (327/91,421). Our results indicate that…

Using R to conduct univariate meta-analyses is becoming common for publication. However, R can also conduct multivariate meta-analysis (MMA). However, newcomers to both R and MMA may find using R to conduct MMA daunting. Given that, R may not be easy for those unfamiliar with coding. Likewise, MMA is a topic of advanced statistics. Thus, it may be…