Designing the user interface (videotape)
Designing the user interface (videotape)
Enhancing the explanatory power of usability heuristics
CHI '94 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The elements of user interface design
The elements of user interface design
Guidelines, standards, and style guides
The human-computer interaction handbook
Effects of scent and breadth on use of site-specific search on e-commerce Web sites
ACM Transactions on Computer-Human Interaction (TOCHI)
HICSS '06 Proceedings of the 39th Annual Hawaii International Conference on System Sciences - Volume 07
Current practice in measuring usability: Challenges to usability studies and research
International Journal of Human-Computer Studies
International Journal of Human-Computer Studies
Human Factors Methods: A Practical Guide for Engineering And Design
Human Factors Methods: A Practical Guide for Engineering And Design
Meta-analysis of correlations among usability measures
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
International Journal of Human-Computer Studies
Neurophysiological correlates in interface design: An HCI perspective
Computers in Human Behavior
Designing product listing pages-Effects on sales and users' cognitive workload
International Journal of Human-Computer Studies
Third-party error detection support mechanisms for dictation speech recognition
Interacting with Computers
Interacting with Computers
Eye activity as a measure of human mental effort in HCI
Proceedings of the 16th international conference on Intelligent user interfaces
The XAOS metric: understanding visual complexity as measure of usability
USAB'10 Proceedings of the 6th international conference on HCI in work and learning, life and leisure: workgroup human-computer interaction and usability engineering
Cognitive load and usability analysis of R-MAP for the people who are blind or visual impaired
Proceedings of the 29th ACM international conference on Design of communication
UMAP'12 Proceedings of the 20th international conference on User Modeling, Adaptation, and Personalization
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Guidelines for designing usable interfaces recommend reducing short termmemory load. Cognitive load, that is, working memory demands during problem solving, reasoning, or thinking, may affect users' general satisfaction and performance when completing complex tasks. Whereas in design guidelines numerous ways of reducing cognitive load in interactive systems are described, not many attempts have been made to measure cognitive load in Web applications, and few techniques exist. In this study participants' cognitive load was measured while they were engaged in searching for several products in four different online book stores. NASA-TLX and dual-task methodology were used to measure subjective and objective mental workload. The dual-task methodology involved searching for books as the primary task and a visual monitoring task as the secondary task. NASA-TLX scores differed significantly among the shops. Secondary task reaction times showed no significant differences between the four shops. Strong correlations between NASA-TLX, primary task completion time, and general satisfaction suggest that NASA-TLX can be used as a valuable additional measure of efficiency. Furthermore, strong correlations were found between browse/search preference and NASA-TLX as well as between search/browse preference and user satisfaction. Thus we suggest browse/search preference as a promising heuristic assessment method of cognitive load.