Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Cumulative Distortions in Usability Testing: Combined Impact of Web Design, Experiment Conditions, and Type of Task and Upon User States During Internet Use. / Yakunin, Alexander V.; Bodrunova, Svetlana S.
Design, User Experience, and Usability: UX Research, Design, and Assessment - 11th International Conference, DUXU 2022, Held as Part of the 24th HCI International Conference, HCII 2022, Proceedings. ed. / Marcelo M. Soares; Elizabeth Rosenzweig; Aaron Marcus. Springer Nature, 2022. p. 526-535 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 13321 LNCS).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
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TY - GEN
T1 - Cumulative Distortions in Usability Testing: Combined Impact of Web Design, Experiment Conditions, and Type of Task and Upon User States During Internet Use
AU - Yakunin, Alexander V.
AU - Bodrunova, Svetlana S.
N1 - Publisher Copyright: © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2022
Y1 - 2022
N2 - The proposed study examines the simultaneous influence of factors (environment, type of task, and product properties) upon functional user states that critically affect assessor performance during the realization of various online tasks. In addition, test environment format varies as individual vs. group one, to assess whether testing conditions affect the test results. The test uses two types of tasks that, respectively, induce user functional states of anxiety and monotony/fatigue. Differences in product features are represented by two university website layouts with high and low aesthetic quality, as measured by website aesthetic quality index (U-index, our earlier elaboration). We have employed two groups of metrics to measure user performance, directed at both cognitive and emotional components of the user states. For cognitive efficiency, intellectual lability and productivity of cognitive operations were assessed. Emotional stress was measured by four metrics of self-assessment, namely the level of anxiety, fatigue, excitement, and confidence. Two assessor groups were put in conditions of individual vs. group task solving. Within each group, sub-groups were assigned either anxiety-inducing or fatigue-inducing tasks. For each task, subgroups worked with webpages of either high (U-index > 17) or low (U-index < 8) aesthetic quality. As the test results show, group task solving enhances the synchronous impact of website aesthetics and task features upon the user states. Interaction of high-quality design, group environment, and a monotonous task provides for an antagonistic effect: aesthetic layout in a group environment significantly reduces the fatigue rate. Low aesthetic quality in a group environment leads to cumulative effects in combination with any type of task: for monotonous tasks, it contributes to the development of fatigue, while for anxiety-inducing tasks it grows anxiety, and, in both cases, productivity drops.
AB - The proposed study examines the simultaneous influence of factors (environment, type of task, and product properties) upon functional user states that critically affect assessor performance during the realization of various online tasks. In addition, test environment format varies as individual vs. group one, to assess whether testing conditions affect the test results. The test uses two types of tasks that, respectively, induce user functional states of anxiety and monotony/fatigue. Differences in product features are represented by two university website layouts with high and low aesthetic quality, as measured by website aesthetic quality index (U-index, our earlier elaboration). We have employed two groups of metrics to measure user performance, directed at both cognitive and emotional components of the user states. For cognitive efficiency, intellectual lability and productivity of cognitive operations were assessed. Emotional stress was measured by four metrics of self-assessment, namely the level of anxiety, fatigue, excitement, and confidence. Two assessor groups were put in conditions of individual vs. group task solving. Within each group, sub-groups were assigned either anxiety-inducing or fatigue-inducing tasks. For each task, subgroups worked with webpages of either high (U-index > 17) or low (U-index < 8) aesthetic quality. As the test results show, group task solving enhances the synchronous impact of website aesthetics and task features upon the user states. Interaction of high-quality design, group environment, and a monotonous task provides for an antagonistic effect: aesthetic layout in a group environment significantly reduces the fatigue rate. Low aesthetic quality in a group environment leads to cumulative effects in combination with any type of task: for monotonous tasks, it contributes to the development of fatigue, while for anxiety-inducing tasks it grows anxiety, and, in both cases, productivity drops.
KW - Cumulative effects in web usability
KW - Functional user states
KW - U-index
KW - Web design
KW - Web usability
UR - http://www.scopus.com/inward/record.url?scp=85133215963&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/99bed229-7f25-3234-a318-161bf981c11b/
U2 - 10.1007/978-3-031-05897-4_36
DO - 10.1007/978-3-031-05897-4_36
M3 - Conference contribution
AN - SCOPUS:85133215963
SN - 9783031058967
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 526
EP - 535
BT - Design, User Experience, and Usability
A2 - Soares, Marcelo M.
A2 - Rosenzweig, Elizabeth
A2 - Marcus, Aaron
PB - Springer Nature
T2 - 11th International Conference on Design, User Experience, and Usability, DUXU 2022 Held as Part of the 24th HCI International Conference, HCII 2022
Y2 - 26 June 2022 through 1 July 2022
ER -
ID: 98193595