Paper Info
Title
Measuring Perceived Usability: The Csuq, Sus, And Umux
Abstract
The primary purpose of this research was to investigate the relationship between two widely used questionnaires designed to measure perceived usability: the Computer System Usability Questionnaire (CSUQ) and the System Usability Scale (SUS). The correlation between concurrently collected CSUQ and SUS scores was 0.76 (over 50% shared variance). After converting CSUQ scores to a 0-100-point scale (to match the range of the SUS scores), there was a small but statistically significant difference between CSUQ and SUS means. Although this difference (just under 2 scale points out of a possible 100) was statistically significant, it did not appear to be practically significant. Although usability practitioners should be cautious pending additional independent replication, it appears that CSUQ scores, after conversion to a 0-100-point scale, can be interpreted with the Sauro-Lewis curved grading scale. As a secondary research goal, investigation of variations of the Usability Metric for User Experience (UMUX) replicated previous findings that the regression-adjusted version of the UMUX-LITE (UMUX-LITEr) had the closest correspondence with concurrently collected SUS scores. Thus, even though these three standardized questionnaires were independently developed and have different item content and formats, they largely appear to be measuring the same thing, presumably, perceived usability.
Year
DOI
Venue
2018
10.1080/10447318.2017.1418805
INTERNATIONAL JOURNAL OF HUMAN-COMPUTER INTERACTION
Field
DocType
Volume
User experience design,Grading (education),Computer science,Usability,Secondary research,Human–computer interaction,System usability scale
Journal
34
Issue
ISSN
Citations 
12
1044-7318
2
PageRank 
References 
Authors
0.37
16
1
Name
Order
Citations
PageRank
James R. Lewis11109119.18