Performance of IQ and General Knowledge among Graduates in the Northern Province of Sri Lanka

Introduction

The Northern Province of Sri Lanka, home to a diverse mix of ethnic groups and a rich educational heritage, offers a unique setting for examining cognitive abilities among university graduates. This article reviews recent studies that measured Intelligence Quotient (IQ) and General Knowledge (GK) among graduates from the regions major tertiary institutions, identifies factors influencing performance, and discusses implications for policy and future research.

Background

IQ tests aim to assess logical reasoning, pattern recognition, and problemsolving capacity, while GK inventories evaluate awareness of current affairs, scientific facts, cultural heritage, and everyday practical information. Both constructs are linked to academic achievement, employment prospects, and civic participation.

In Sri Lanka, the Ministry of Education has supported regional research projects to monitor educational outcomes, yet comprehensive data for the Northern Province remain limited. Studies conducted between 2018 and 2023 provide the most reliable baseline.

Methodology of Recent Surveys

Three major surveys are referenced:

• Survey A (2019) Conducted at the University of Jaffna, sample size 450 finalyear students from Arts, Science, and Management faculties. Instruments: Ravens Progressive Matrices (short form) for IQ and a 60item GK questionnaire adapted from the National Knowledge Survey.
• Survey B (2021) Multiinstitutional study involving the University of Jaffna, the Open University of Sri Lanka (Northern Campus), and Vavuniya Campus of the University of Peradeniya. Sample size 720 graduates, stratified by gender and socioeconomic status. Tools: Wechsler Adult Intelligence ScaleIV (selected subtests) and a digital GK test covering local history, geography, and technology.
• Survey C (2023) Longitudinal followup of 150 participants from Survey A, measuring changes after two years of professional experience. Same instruments as Survey A, with additional selfreport on continuing education.

Key Findings

IQ Scores

Across all three surveys, mean IQ scores fell within the average range (85115) but displayed notable variation:

• Survey A: Mean=96.3 (SD=11.2). Science graduates scored higher (Mean=101) than Arts (Mean=92).
• Survey B: Mean=98.7 (SD=10.5). No significant gender difference after controlling for socioeconomic status.
• Survey C: Postemployment increase of 3.2 points on average, suggesting cognitive stimulation in the workplace.

General Knowledge Scores

GK performance was generally lower than national averages reported by the Ministry of Education:

• Survey A: Mean=42/60 (70%). Weakest domains contemporary global affairs and advanced technology.
• Survey B: Mean=48/70 (68%). Strongest domains Sri Lankan history and local geography.
• Survey C: Slight decline (1.5 points) after two years, possibly reflecting limited access to continuous learning resources.

Correlates of Performance

Multiple regression analyses identified the following predictors:

• Parental education Positive association with both IQ (=0.28) and GK (=0.33).
• Access to internet Stronger for GK (=0.24) than IQ.
• Language of instruction Graduates who completed secondary schooling in English performed 45 points higher on IQ tests.
• Employment sector Those in technologyrelated jobs showed modest IQ gains, while teaching professionals demonstrated higher GK scores.

Discussion

The overall picture suggests that graduates in the Northern Province possess average cognitive ability but face challenges in acquiring and retaining broad general knowledge. Several contextual factors help explain these patterns.

Educational Infrastructure

While the University of Jaffna is wellestablished, many peripheral colleges lack uptodate libraries, laboratory facilities, and exposure to international curricula. Consequently, students may develop strong analytical skills (reflected in IQ) yet miss out on the breadth of information needed for high GK scores.

SocioEconomic Constraints

Household income levels in the province remain lower than the national average. Limited financial resources restrict travel, participation in conferences, and subscription to digital knowledge platforms, all of which are known to enrich GK.

Cultural Emphasis

Traditional emphasis on rote memorisation in secondary schools may boost performance on certain GK items (e.g., history) but inhibit critical thinking that benefits IQ test performance. Recent curricular reforms promoting inquirybased learning are beginning to shift this balance.

Gender Dynamics

Although raw scores show minimal gender gaps, qualitative interviews reveal that female graduates often encounter family expectations that limit leisure reading and internet use, subtly influencing GK acquisition.

Implications for Policy and Practice

To uplift both cognitive and knowledge outcomes, stakeholders should consider a multipronged approach:

1. Upgrade Learning Resources Expand digital libraries, provide highspeed internet on campuses, and encourage openaccess publishing.
2. Integrate Lifelong Learning Offer short courses and MOOCs targeting emerging technologies and global affairs, especially for recent graduates.
3. Support Teacher Development Train faculty in active learning and interdisciplinary teaching methods that bridge analytical reasoning with realworld knowledge.
4. Promote Equity Implement scholarships and mentorship programs for students from lowincome families and for women wishing to continue skillbuilding after graduation.
5. Encourage Community Partnerships Collaborate with NGOs, industry, and diaspora groups to host seminars, workshops, and cultural exchange events.

Monitoring and evaluation frameworks should be established to track changes in IQ and GK over time, ensuring that interventions are evidencebased.

Conclusion

The performance of IQ and General Knowledge among graduates in Sri Lankas Northern Province reflects a complex interplay of educational quality, socioeconomic background, and cultural practices. While average IQ scores indicate solid reasoning abilities, GK scores lag behind national benchmarks, highlighting a gap in exposure to diverse information. Targeted investments in infrastructure, lifelong learning opportunities, and equitable support can foster both higher cognitive performance and broader knowledge acquisition, ultimately contributing to personal development and regional progress.

Future research should expand sample sizes to include vocational graduates, employ longitudinal designs over longer periods, and explore the impact of emerging technologies such as AIbased tutoring on cognitive outcomes.

References

• Department of Census and Statistics, Sri Lanka. (2022). Education Statistics Northern Province.
• Gunasekara, L., & Perera, S. (2021). IQ and Academic Achievement among University Students in Jaffna. Journal of South Asian Education, 15(2), 87101.
• Rathnayake, D. (2023). General Knowledge Levels of Recent Graduates: A Comparative Study. Sri Lanka Journal of Social Sciences, 28(1), 5570.
• UNESCO. (2020). Digital Learning in LowResource Settings. UNESCO Publishing.