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Search: authors:"Abrar Ullah"

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A Dynamic Profile Questions Approach to Mitigate Impersonation in Online Examinations

Online examinations are an integral component of many online learning environments, which face many security challenges. Collusion is seen as a major security threat to such examinations, when a student invites a third party to impersonate or abet in a test. This work aims to strengthen the authentication of students via the use of dynamic profile questions. The study reported in...

Evaluating security and usability of profile based challenge questions authentication in online examinations

Student authentication in online learning environments is an increasingly challenging issue due to the inherent absence of physical interaction with online users and potential security threats to online examinations. This study is part of ongoing research on student authentication in online examinations evaluating the potential benefits of using challenge questions. The authors...