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Tenth International Symposium on Human Aspects of Information Security & Assurance (HAISA 2016)
Title: What Can Johnny Do?–Factors in an End-User Expertise Instrument
Author(s): Prashanth Rajivan, Pablo Moriano, Timothy Kelley, Linda Jean Camp
Keywords: Expertise, Security, Privacy, Psychometrics, Security Comprehension
Abstract: Security and computer expertise of end users can be significant predictors of user behaviour and interactions in the security and privacy context. Standardized, externally valid instruments for measuring end-user security expertise are non-existent. To address this need, we developed a questionnaire to identify critical factors that constitute expertise in end-users. It combines skills and knowledge based questions. Using exploratory factor analysis on the results from 898 participants from a range of populations, we identified 12 questions within 4 factors that correspond to computing and security expertise. Ordered logistic regression models were applied to measure efficacy of proposed security and computing factors in predicting user comprehension of security concepts (phishing and certificates). We conclude with a framework for informing future user-centered security expertise research.
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