A Literature Review on the Impact of Project Based Learning and Socio Demographic Variables on Academic Outcomes
DOI:
https://doi.org/10.7719/irj.v26i1.1003Keywords:
Project-Based Learning, Academic achievement, Scientific literacy, Higher-order thinking, Student engagement, Socio-demographic variables, 21st-century competenciesDisciplines:
Educational Psychology, Science EducationAbstract
This literature review examines how Project-Based Learning (PBL) influences students' academic outcomes and how socio-demographic variables moderate these effects. Grounded in constructivist theory, PBL is a learner-centered approach that engages students in sustained inquiry, collaboration, and real-world problem solving, contrasting with lecture-based instruction that often emphasizes content transmission. The chief objective of this review is to synthesize empirical evidence on PBL's impact on academic achievement, scientific literacy, higher-order thinking, and content mastery, while analyzing the moderating roles of age, gender, and socioeconomic status (SES). Using a narrative review method, peer-reviewed studies and meta-analyses from multiple academic databases (2010-2025) were examined and organized thematically across instructional outcomes and demographic influences. Results indicate that PBL generally improves achievement, cognitive engagement, inquiry skills, and long-term retention, with meta-analytic findings. However, outcomes vary across student groups: SES strongly predicts access to resources and readiness for inquiry, younger learners often require greater scaffolding for self-regulation, and gendered participation patterns may affect roles and engagement in collaborative tasks. The review concludes that PBL is a robust strategy for promoting deep learning and 21st-century competencies, but equitable benefits require inclusive design, differentiated supports, culturally responsive pedagogy, and adequate resource allocation.
References
Anderson, L. W., & Krathwohl, D. R. (2001). A taxonomy for learning, teaching, and assessing: A revision of Bloom's taxonomy of educational objectives: complete edition. Addison Wesley Longman, Inc. https://eduq.info/xmlui/handle/11515/18824
Ayaz, M., & Söylemez, M. (2015). The effect of the project-based learning approach on the academic achievements of the students in science classes in Turkey: A meta-analysis study. Education and Science, 40(178). DOI: 10.15390/EB.2015.4000
Bedard, K., & Dhuey, E. (2006). The persistence of early childhood maturity: International evidence of long-run age effects. The Quarterly Journal of Economics, 121(4), 1437-1472. https://doi.org/10.1093/qje/121.4.1437
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Copyright (c) 2026 Chardemie A. Alvarez, Magdalina R. Abella, Jan A. Macaraeg
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Open Access. This article, published by JPAIR Multidisciplinary Research, is licensed under a Creative Commons Attribution-Noncommercial 4.0 International (CC BY-NC 4.0). You are free to share (copy and redistribute the material in any medium or format) and adapt (remix, transform, and build upon the material). Under the following terms, you must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes.
