Abstract
This paper studies the effect of individual differences on user performance related to text-recognition CAPTCHA challenges. In particular, a text-recognition CAPTCHA mechanism was deployed in a three-month user study to investigate the effect of individuals’ different cognitive processing abilities, targeting on speed of processing, controlled attention and working memory capacity toward efficiency and effectiveness with regard to different levels of complexity in text-recognition CAPTCHA tasks. A total of 107 users interacted with CAPTCHA challenges between September and November 2012 indicating that the usability of CAPTCHA mechanisms may be supported by personalization techniques based on individual differences in cognitive processing.
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Belk, M., Germanakos, P., Fidas, C., Holzinger, A., Samaras, G. (2013). Towards the Personalization of CAPTCHA Mechanisms Based on Individual Differences in Cognitive Processing. In: Holzinger, A., Ziefle, M., Hitz, M., Debevc, M. (eds) Human Factors in Computing and Informatics. SouthCHI 2013. Lecture Notes in Computer Science, vol 7946. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-39062-3_26
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DOI: https://doi.org/10.1007/978-3-642-39062-3_26
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