TY - JOUR
T1 - The effects of redundancy in user-interface design on older users
AU - Reddy, Gudur Raghavendra
AU - Blackler, Alethea
AU - Popovic, Vesna
AU - Thompson, M. Helen
AU - Mahar, Douglas
PY - 2020/5
Y1 - 2020/5
N2 - 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.
AB - 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.
KW - Aging
KW - Interface design
KW - Intuitive interaction
KW - Redundancy
UR - http://www.scopus.com/inward/record.url?scp=85078675130&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/0f3e8e4d-f1d6-398e-8ba9-7b65276672e6/
U2 - 10.1016/j.ijhcs.2019.102385
DO - 10.1016/j.ijhcs.2019.102385
M3 - Article
AN - SCOPUS:85078675130
SN - 1071-5819
VL - 137
SP - 1
EP - 19
JO - International Journal of Human Computer Studies
JF - International Journal of Human Computer Studies
M1 - 102385
ER -