The effects of redundancy in user-interface design on older users

Gudur Raghavendra Reddy, Alethea Blackler, Vesna Popovic, M. Helen Thompson, Douglas Mahar

Research output: Contribution to journalArticle

Abstract

This paper presents an experiment designed to investigate if redundancy in an interface has any advantage over either words-based or symbols-based interfaces for older people during early or intermittent encounters with a device. Although older people used all three interfaces more slowly and less intuitively than younger ones, interestingly there were no age differences in terms of errors made on the words-based interface. In terms of differences between interfaces, older people (65+) completed tasks on the words-based interface faster and more intuitively than on the redundant (words and symbols) interface. Younger participants completed tasks faster on the redundant interface. Overall, this research suggests that a simple words-based interface is most effective for older users and that recommendations to use redundant interfaces for greater usability for older people may need to be re-visited.

Original languageEnglish
Article number102385
Pages (from-to)1-19
Number of pages19
JournalInternational Journal of Human Computer Studies
Volume137
DOIs
Publication statusPublished - May 2020

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Reddy, Gudur Raghavendra ; Blackler, Alethea ; Popovic, Vesna ; Thompson, M. Helen ; Mahar, Douglas. / The effects of redundancy in user-interface design on older users. In: International Journal of Human Computer Studies. 2020 ; Vol. 137. pp. 1-19.
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The effects of redundancy in user-interface design on older users. / Reddy, Gudur Raghavendra; Blackler, Alethea; Popovic, Vesna; Thompson, M. Helen; Mahar, Douglas.

In: International Journal of Human Computer Studies, Vol. 137, 102385, 05.2020, p. 1-19.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The effects of redundancy in user-interface design on older users

AU - Reddy, Gudur Raghavendra

AU - Blackler, Alethea

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AU - Thompson, M. Helen

AU - Mahar, Douglas

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