As expected, the correlation between the SUS and UMUX-LITE was significant and substantial, and the overall mean difference between their scores was just 1.1, about 1 % of the range of values the questionnaires can take, verifying the efficacy of the regression formula....
This relationship was confirmed again with a separate data set and Lewis and Borsci et al again found only a 1% error (99% accuracy) between the UMUX-Lite scores and the SUS. A similar finding by Berkman & Karahoca was also shown for the unadjusted version. UMUX-Lite (5-point version)...
(SUS) scores would continue to do so accurately with an independent set of data; (b) whether additional items covering concepts such as findability, reliability, responsiveness, perceived use by others, effectiveness, and visual appeal would be redundant with the construct of perceived usability or...
As expected, the correlation between the SUS and UMUX- LITE was significant and substantial, and the overall mean difference between their scores was just 1.1, about 1 % of the range of values the questionnaires can take, verifying the efficacy of the regression formula....
As expected, the correlation between the SUS and UMUX-LITE was significant and substantial, and the overall mean difference between their scores was just 1.1, about 1% of the range of values the questionnaires can take, verifying the efficacy of the regression formula.James R. Lewis...