@article{ref1,
title="Verbal and pictorial single-item scales are as good as their 10-item counterparts for measuring perceived usability",
journal="Ergonomics",
year="2024",
author="Gräve, Elisa and Bell, Raoul and Buchner, Axel",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="Single-item scales of perceived usability are attractive due to their efficiency and non-verbal scales are attractive because they enable collecting data from individuals irrespective of their language proficiency. We tested experimentally whether single-item verbal and pictorial scales can compete with their 10-item counterparts at reflecting the difference in usability between well-designed and poorly designed systems. N = 1079 (Experiment 1) and N = 1092 (Experiment 2) participants worked with two systems whose usability was experimentally manipulated. Perceived usability was assessed using the 10-item System Usability Scale, the single-item Adjective Rating Scale, the 10-item Pictorial System Usability Scale and the Pictorial Single-Item Usability Scale. The single-item scales reflect the difference in usability as good as their 10-item counterparts. The pictorial scales are nearly as valid as their verbal counterparts. The single-item Adjective Rating Scale and the Pictorial Single-Item Usability Scale are thus efficient and valid alternatives to their 10-item counterparts.<p /> <p>Language: en</p>",
language="en",
issn="0014-0139",
doi="10.1080/00140139.2024.2371061",
url="http://dx.doi.org/10.1080/00140139.2024.2371061"
}