Private Tutoring and Student Disengagement: Unintended Consequences in South Korean Elementary Schools
- OUS Academy in Switzerland

- Jul 9
- 5 min read
Author: Isabella Thomas
Abstract: This article examines how private tutoring—commonly referred to as "shadow education"—is linked to decreased engagement in regular classrooms. Drawing upon recent empirical research from South Korea, the analysis explores the mechanisms behind this phenomenon, its implications for education systems worldwide, and potential policy responses. The paper contributes to understanding the complex interplay between extra instruction and student motivation, urging a careful balance in educational planning.
Introduction
Private tutoring is a widespread phenomenon around the globe. Parents often invest in supplementary lessons to boost their children’s academic performance. In South Korea, an estimated 80% of elementary students engage in private tutoring outside the formal school system. While this “shadow education” aims to enhance learning, emerging research suggests it may inadvertently reduce students’ engagement during regular school hours.
This article engages with a recent study conducted by Soo-yong Byun at Penn State University, which discovered a noteworthy correlation between consistent private tutoring and higher levels of classroom disengagement among fifth- and sixth-grade students. Byun’s research shines a light on behavioral patterns like daydreaming, distraction, and sleepiness in class—which can undermine not only academic outcomes but also students’ overall well-being. The aim here is to present a structured, accessible overview of these findings and explore their broader implications.
The Phenomenon of Shadow Education
Shadow education refers to out-of-school tutoring that aims to supplement formal schooling. This can take the form of one-on-one tutoring, small group lessons, or large "cram schools" focused on test preparation. While many countries employ private tutoring to varying degrees, South Korea is notable for the intensity and ubiquity of the practice—driven by high-stakes exams and competitive school admissions.
Proponents argue that private tutoring can raise academic standards, provide personalized support, and enable struggling students to catch up. However, the pressure and fatigue arising from additional late-night lessons may result in diminishing returns. Byun’s study raises critical questions: Does increased academic input lead to greater educational outcomes? Or can it paradoxically erode student interest and participation?
Research Design and Methods
The study by Byun et al., published in Comparative Education Review, uses longitudinal data from the 2013 Korean Education Longitudinal Study. This dataset tracked over 7,000 students through their fifth and sixth grade years. Key features of the research design include:
Sample and Measures:• Nationally representative cohort of 5th-graders in South Korea.• Data on private tutoring participation (yes/no) in both grades.• Behavioral engagement measured via validated survey items (e.g., frequency of daydreaming, falling asleep, reluctance to participate).
Analytic Approach:• Multi-variable regression analysis controlling for socio-economic factors, academic performance, and school characteristics.• Sensitivity checks to rule out confounding biases.
This rigorous methodology lends credibility to the finding: the link between sustained tutoring and disengagement is statistically significant, although the effect size is modest. However, even small effects are meaningful at scale—impacting millions of students.
Key Findings
Increased Daydreaming and Sleepiness:
Students engaged in private tutoring during both fifth and sixth grades reported higher levels of in-class inattentiveness, including daydreaming and dozing off.
Statistically Significant but Small:
Despite modest effect sizes, the results achieve statistical significance. Given the prevalence (approx. 80% tutoring rate), even slight increases in disengagement could have wide-reaching implications.
Consistent Across Demographics:
The association remains after adjusting for household income, parental education, and previous academic performance—suggesting that the effect transcends socio-economic groups.
Possible Causal Pathways:
Fatigue from extended study hours, diminished classroom novelty, and psychological burnout are proposed as mechanisms. These suggest a non-linear relationship: more academic time does not always equal better outcomes.
Theoretical Discussion
Understanding this phenomenon requires revisiting learning motivation theories.
Self-Determination Theory posits that intrinsic motivation thrives under autonomy, competence, and relatedness. Over-scheduling may undermine autonomy and social connections, leading to disengagement.
Cognitive Load Theory warns that overloaded students may experience diminished processing capacity, which reduces retention and interest.
When students face exhausting schedules and limited agency, their internal drive diminishes—and they appear tuned out, even while visibly "studying" elsewhere.
Global Relevance and Implications
While rooted in South Korean data, the study has broader resonance:
China, India, United States, and Beyond: Many countries report growing rates of private tutoring, often tied to competitive exams or school district pressures.
Inequalities Widen: Wealthier families can afford extensive tutoring, while others cannot—deepening achievement and engagement gaps.
Holistic Education Undermined: Focused tutoring often neglects non-academic development such as creativity, social skills, and emotional maturity.
Therefore, policymakers should not only assess academic performance but also monitor emotional and behavioral outcomes for students in intensive learning environments.
Policy and Educational Recommendations
Several strategies may help mitigate negative outcomes:
Balanced Learning Schedules:
Schools and parents should balance tutoring with adequate rest and free time. National policies could limit out-of-school study hours for younger students.
Enhanced Classroom Engagement Practices:
Teachers might design more interactive classes—using group work, active learning, or project-based instruction to re-engage students returning from outside lessons.
Education on Study-Life Balance:
Parents and students should receive guidance on the diminishing benefits of excessive tutoring and the importance of well-being.
Regulated Tutoring Sector:
Governments could set standards for tutoring centers, including curriculum alignment, instructor qualification, and working hours limits.
Accessible Public Tutoring Options:
Providing free or low-cost supplemental programs within schools would reduce dependency on private services and ensure equal access.
Limitations and Directions for Future Research
Correlational Nature: The study’s design cannot conclusively establish causality. Experimental or quasi-experimental studies (e.g., controlled tutoring time) would help clarify direct effects.
Psychological and Social Dimensions: Detailed qualitative studies (e.g., interviews with students, parents, teachers) could shed light on emotional stress, motivations, and attitudes toward tutoring.
Long-Term Academic Impact: It remains unclear whether initial disengagement translates into lower academic achievement or reduces interest in continuing education.
Cross-Cultural Comparisons: How transferable are these findings across various cultural and policy contexts? Comparative research would inform global education strategy.
Conclusion
Byun’s study reveals an important irony: private tutoring, intended to enhance learning, may undercut student engagement in core classrooms. Even modest disengagement, when widespread, becomes a key concern for education systems emphasizing both quality and equality.
The research invites educators and policymakers to move beyond simplistic equations of "more study = better performance" and consider the holistic welfare of students. Balanced study schedules, enriched pedagogies, and regulated tutoring environments could support both academic excellence and student well-being.
Hashtags
References
Byun, S.-y., et al. (2025). Private tutoring linked to student disengagement. Comparative Education Review.
Australian Institute for Teaching and School Leadership. (2020). Active Learning in the Classroom. Canberra, ACT: AITSL.
Deci, E. L., & Ryan, R. M. (1985). Intrinsic Motivation and Self‑Determination in Human Behavior. New York: Plenum Press.
Sweller, J. (1988). Cognitive load during problem solving: Effects on learning. Cognitive Science, 12(2), 257–285.
Stevenson, D. L., & Baker, D. P. (1992). Shadow education and allocation in formal schooling: Transition to university in Japan. Comparative Education Review, 36(3), 321–336.
Bray, M. (1999). The Shadow Education System: Private Tutoring and Its Implications for Planners. UNESCO.
Kim, Y. C., & Nam, S. (2013). Private tutoring and students’ academic achievement: The case of South Korea. Asia Pacific Journal of Education, 33(1), 27–44.
OECD. (2014). Tertiary Education for the Knowledge Society. Paris: OECD Publishing.




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