Determining the Impact of Computer Frustration on the Mood of Blind Users Browsing the Web
Jonathan Lazar, Jinjuan Feng, Aaron Allen · 2006 · Proceedings of the 8th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '06) · doi:10.1145/1168987.1169013
Summary
This paper from Towson University's Universal Usability Laboratory examines how computer frustration affects the mood of 100 blind web users — the first study to investigate the emotional impact of frustrating computing experiences specifically for users with visual impairments. Participants browsed the web for at least two hours performing self-chosen tasks, completing pre- and post-session mood questionnaires and filling out time diary forms each time they experienced frustration. The time diaries captured the cause of frustration, current mood, response to the frustration, time lost, and impact on work. A hierarchical regression analysis was used to identify which factors significantly predicted mood change. The study was conducted from September 2004 to May 2005 with participants recruited through the National Federation of the Blind, all using screen readers (primarily JAWS and Window-Eyes). Participants ranged from 18 to 84 years old with a mean age of 43.7 years, and notably, a majority of blind individuals in the US are unemployed, making the ability to complete work tasks particularly significant to this population.
Key findings
Six factors significantly predicted mood change, together explaining 34.7% of the variance: overall frustration score (F=10.7, p<0.005), impact on ability to complete work (F=7.2, p<0.01), Internet experience (F=5.0, p<0.05), anxiety (F=4.9, p<0.05), perceived software/hardware sufficiency (F=5.0, p<0.05), and tendency to keep thinking about unsolved problems (F=6.0, p<0.05). The most striking finding was that time lost due to frustrating situations did NOT significantly affect blind users' mood — directly contradicting previous research on sighted users where time loss was a major mood predictor. Instead, the impact on work completion was the strongest driver of mood deterioration. The researchers hypothesized that blind users, rather than giving up or rebooting when frustrated, focused on finding workarounds and alternative solutions, meaning they valued reaching the end goal over the time spent. More experienced Internet users showed less mood deterioration, and interestingly, anxiety showed a quadratic rather than linear relationship with mood — users who were either very anxious or very relaxed experienced greater mood impact than those with moderate anxiety levels.
Relevance
This study provides crucial evidence that blind users experience and respond to computer frustration fundamentally differently than sighted users. The finding that time loss does not predict mood change for blind users has direct implications for interface design: optimizing for task completion speed alone (a common accessibility metric) may miss what matters most to blind users — the ability to successfully complete their work at all. For accessibility practitioners, this suggests that removing barriers to task completion is more important than reducing task time. The research also challenges the common design approach of minimizing frustration response time, suggesting instead that ensuring tasks can be completed, even if slowly, may be more emotionally supportive. The high value blind users place on work completion also connects to the broader social context of high unemployment rates among blind individuals, where the ability to demonstrate competence through task completion carries significant professional and personal weight.
Tags: screen readers · visual impairment · user frustration · web accessibility · affective computing · usability · blind users · emotional impact