BLOCKCHAIN APPLICATIONS IN EDUCATIONAL TESTING: ENHANCING TEST SECURITY, DATA INTEGRITY, AND CREDENTIAL VERIFICATION

Abstract

This research investigates how blockchain technology can be applied in educational testing to promote examination security, data accuracy, and reliable credential validation. Traditional testing systems frequently encounter challenges such as unauthorized access, manipulation of results, and the circulation of forged certificates, which weaken institutional credibility and complicate verification processes. Blockchain’s decentralized and tamper-resistant structure presents a viable means to address these weaknesses. A descriptive survey design was employed to collect data from educational administrators, ICT experts, and examination officers in selected tertiary institutions. The study assessed their views on blockchain’s feasibility, perceived benefits, and barriers to implementation. Descriptive statistics and thematic analysis were used to interpret the data. Findings showed that blockchain could significantly minimize examination malpractice, strengthen record protection, and promote the authenticity of academic credentials. Nonetheless, effective implementation demands infrastructural preparedness, appropriate regulations, staff training, and system interoperability. The study concludes that blockchain has strong potential to transform assessment and verification systems, thereby improving trust and transparency in educational outcomes. It recommends pilot projects, policy formulation, and capacity development initiatives to encourage sustainable adoption.