Cognitive Load in eCommerce Applications—Measurement and Effects on User Satisfaction
Joint Authors
Heinz, Silvia
Métrailler, Yolanda
Schmutz, Peter
Opwis, Klaus
Source
Advances in Human-Computer Interaction
Issue
Vol. 2009, Issue 2009 (31 Dec. 2009), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2009-05-26
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Guidelines for designing usable interfaces recommend reducing short term memory 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.
American Psychological Association (APA)
Schmutz, Peter& Heinz, Silvia& Métrailler, Yolanda& Opwis, Klaus. 2009. Cognitive Load in eCommerce Applications—Measurement and Effects on User Satisfaction. Advances in Human-Computer Interaction،Vol. 2009, no. 2009, pp.1-9.
https://search.emarefa.net/detail/BIM-447329
Modern Language Association (MLA)
Schmutz, Peter…[et al.]. Cognitive Load in eCommerce Applications—Measurement and Effects on User Satisfaction. Advances in Human-Computer Interaction No. 2009 (2009), pp.1-9.
https://search.emarefa.net/detail/BIM-447329
American Medical Association (AMA)
Schmutz, Peter& Heinz, Silvia& Métrailler, Yolanda& Opwis, Klaus. Cognitive Load in eCommerce Applications—Measurement and Effects on User Satisfaction. Advances in Human-Computer Interaction. 2009. Vol. 2009, no. 2009, pp.1-9.
https://search.emarefa.net/detail/BIM-447329
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-447329