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Scientific Literacy Instruments in Science Education: A Meta-Analytic Study on Internal Consistency Hajidah Salsabila Allissa Fitri; Alfian Ma’arif; Casphama Jovansyah Chaidir; Zafrullah Zafrullah; Nurdin Munthe; Sumalee Chuchai; Shazia Aslam
Control Systems and Optimization Letters Vol 4, No 2 (2026)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v4i2.338

Abstract

Scientific literacy is a central goal of science education and is commonly assessed using diverse instruments across educational levels and contexts. However, internal consistency estimates are sample dependent and may vary across studies. This study conducted a reliability generalization meta analysis of Cronbach’s alpha coefficients reported for scientific literacy instruments. A systematic search of the Scopus database identified empirical studies reporting Cronbach’s alpha for scientific literacy instruments. In total, 19 studies providing 20 reliability estimates, comprising 10,163 participants, were included. Reliability generalization and moderator analyses were conducted using mixed effects models in jamovi. The pooled Cronbach’s alpha was 0.814 (95% CI [0.776, 0.853]), suggesting high average internal consistency; however, the extreme heterogeneity (I² = 99.42%) indicates that this estimate represents an overall average rather than a stable or universally generalizable reliability value. Moderator analyses showed that education level, instrument type, study design, item group, and geographical region were not significant moderators of reliability, indicating that these characteristics did not explain the substantial variability across estimates. Publication bias assessment suggested a low risk of bias, although sensitivity analysis showed that the pooled estimate was influenced by the exclusion of low alpha values. For instrument developers, these findings emphasize the need to establish reliability evidence for specific target populations and contexts rather than relying on a pooled reliability coefficient. Future research should investigate additional methodological and contextual factors that may explain the substantial heterogeneity.
Mapping Research Trends of Technology Enhanced Project-Based Learning for Sustainable Chemistry Education Hajidah Salsabila Allissa Fitri; Alfian Ma’arif; Jaslin Ikhsan; Zafrullah Zafrullah; Shazia Aslam; Casphama Jovansyah Chaidir; Elysa Putri Agustin; Rasamimanana Joronavalona
Indonesian Journal of Applied Science and Engineering Vol. 3 No. 2 (2025)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/ijase.v3i2.173

Abstract

The integration of project-based learning, sustainability education, and educational technology has gained increasing attention in chemistry education as educators seek innovative approaches to address global sustainability challenges and develop students’ twenty first century competencies. However, the development of research in this area has not been systematically mapped within the Scopus indexed literature. Therefore, this study aimed to analyze publication trends, leading contributors, thematic development, and research gaps in technology enhanced project-based learning for sustainable chemistry education. A bibliometric approach was employed using English language literature retrieved from the Scopus database on May 11, 2026. The search process identified 485 English language publications, including articles, conference papers, and review papers published between 2010 and 2026. Bibliometric analyses were conducted using Biblioshiny in RStudio and VOSviewer to examine publication trends, collaboration networks, keyword co-occurrence patterns, and thematic development. The results indicate a substantial increase in research output, particularly after 2020, with 162 publications recorded in 2025, representing the highest annual output in the dataset. Indonesia emerged as the most productive contributor, accounting for 29.07% of the total publications, while Finland, the United States, and China demonstrated greater citation influence. Keyword analysis identified project-based learning, students, sustainability, engineering education, and green chemistry as dominant research themes. Thematic evolution revealed a shift from technology adoption and instructional innovation toward sustainability oriented learning and competency development. Emerging topics such as critical thinking, design thinking, and twenty first century skills have gained increasing attention in recent years. The findings suggest that although the Scopus indexed literature has experienced rapid growth, the integration of artificial intelligence, learning analytics, and adaptive educational technologies remains limited. This study provides a systematic mapping of the Scopus indexed, English language literature and offers directions for future research on technology enhanced sustainable chemistry education.