We discuss an original study and two replications conducted over 18 years examining the impact of Teacher Study Group (TSG) in Vocabulary, a professional development (PD) approach for improving pedagogy and student learning. Study 1 focused on the design and development of the PD and included a small-scale randomized controlled trial to assess the…

The present study intended to examine the impact of an activity-based intervention on the attitude and awareness of adolescents towards sustainability and its dimensions using a quasi-experimental research design. A cluster sample of 99 participants, experimental and control groups comprising of 50 and 49 school students, was selected for the…

The purpose of this study was to determine how various security measures affect performance in two South Carolina middle schools, one high-performing, and one low-performing. This research study determined educators' attitudes toward safety in one high-performing and low-performing school in the low country area of South Carolina. There were five…

Making school meaningful is a widely accepted goal in education, yet "what" is considered meaningful, meaningful to "whom," and "why," leaves room for interrogation. This sequential explanatory mixed methods study aims to understand: (1) The extent to which students experience meaningful education at EL Education…

This study aimed to evaluate the effectiveness of a design thinking teaching and learning model on students' design thinking skills in science class. The study utilised two projects, 'Making a Simple Solar Water Heater' and 'Drawing a 3D Topographic Map of Zhejiang Province,' based on the 5th-grade science curriculum in China, and involved 45…

Grade retention is one of the most discussed and controversial educational measures, and yet, it is still widely applied in many countries. Research investigating the effects of grade retention on students' psychosocial variables presents mixed findings, partly due to the variables assessed, methodological issues, and the length of the studies.…

Several studies and assumptions support the advantages of presenting pictures before texts, such as the Sequencing Effects of Integrated Model of Text and Picture Comprehension (the Sequencing Effects of ITPC Model) and the Scaffolding Assumption. However, few studies have examined the efficacy of text-first or picture-first multimodal input on…

This study examined (a) the effects of professional development (PD) intervention on third- to fifth-grade teachers' knowledge and skills of teaching practice for multilingual learners (MLs), and (b) the relationship between teachers' enhanced knowledge and skills, MLs' self-efficacy in learning, and MLs' academic performance. The sample consisted…

Intellectual abilities are consistently found to be associated to child functioning. To date, however, it is unclear how varying intellectual profiles relate to differential aspects of child functioning. We screened 513 fifth-grade children on their intellectual abilities and selected three groups of gifted children, scoring in the top 10%:…

The aim of this study was to compare the 5E learning model with traditional learning methods in terms of their effect on students' conceptual understanding of water subtopics. The participants of the study were grade 8 students of 2021 academic year. While 27 of them were randomly assigned to the experimental group, the other 27 were assigned to…

Empirical research has shown that poor comprehenders use reading strategies less frequently than good comprehenders. Moreover, poor comprehenders tend to use simple strategies (e.g. slowing down reading when the text is hard to understand) instead of using more complex strategies (e.g. choosing between main and trivial information). The present…

This best-evidence synthesis appraises the design and outcome characteristics of vocabulary intervention studies conducted with preschool through 6th grade emergent bilingual (EB) children and spotlights rigorously designed studies for which effects could be better attributed to instructional features. Twenty-nine selected studies were analysed…

The study examined the sensitivity to change of field assessments of handgrip strength and vertical jump following programmatic interventions in physical education settings. Using a naturalistic experimental design, classes of 6th grade students (N = 158) were randomized to receive either an 8-week musculoskeletal strength or plyometric power…

Students need critical thinking skills to develop their ideas in mathematics learning situations at school, and they can apply mathematical concepts in solving contextual problems. Junior high school students have unique characteristics and are highly curious about new knowledge. Therefore, it is crucial to apply the learning models that support…

Gang involvement is associated with many negative outcomes. However, the social and emotional development of gang-involved youth has received little empirical investigation. This study examines the social and emotional outcomes of gang-involved youth. Data come from the 2009 Fairfax County Youth Survey administered to eighth, 10th, and 12th grade…