Usability analysis of the specific captcha types

Abstract

The study presents the usability analysis representing the process of solving the specific types of CAPTCHA. Accordingly, the response time to solve a certain CAPTCHA as well as its correctness is used as the main usability parameters. As an input the various demographic factors are used such as: gender, age, educational level, and Internet experience. The experiment is conducted on 55 examinees from the region of Eastern Serbia, which used tablets to solve a specific type of CAPTCHA. The obtained results are statistically processed. After that, four hypotheses are set. Each of them are examined and (diss)proved. The obtained results should be used in different areas of e-banking, Internet use, online polling, etc. in order to make the process of solving CAPTCHA easier for the Internet users.