What is an average SUS score?
a 68
What is a Good SUS Score? The average SUS score from all 500 studies is a 68. A SUS score above a 68 would be considered above average and anything below 68 is below average. The best way to interpret your score is to convert it to a percentile rank through a process called normalizing.
Is sus reliable?
SUS is reliable. Users respond consistently to the scale items, and SUS has been shown to detect differences at smaller sample sizes than other questionnaires. SUS is valid. That is, it measures what it purports to measure.
How is Umux score calculated?
For basic UMUX-LITE scoring, subtract one from the score of each questionnaire item. Add up both of these adjusted scores and divide their sum by 12. Multiply this number by 100. To compare your UMUX-LITE score to a SUS score, you need to convert your UMUM-LITE score using a regression equation.
Where can I find the SUS usability scale?
The calculator can be accessed with a SUPR-Q license. If you have the full SUPR-Q license, you can compare your results with other similar websites to see where your score stands against your competitors. The SUS is the ‘Quick and Dirty’ usability scale.
What’s the average score on the SUS scale?
Interpreting Scores. Based on research, a SUS score above a 68 would be considered above average and anything below 68 is below average, however the best way to interpret your results involves “normalizing” the scores to produce a percentile ranking.
How are scores calculated on the system usability scale?
The questionnaire and scoring are outlined in the System Usability Scale (SUS) Template. Interpreting scoring can be complex. The participant’s scores for each question are converted to a new number, added together and then multiplied by 2.5 to convert the original scores of 0-40 to 0-100.
Which is the best way to interpret the results of the SUS?
The best way to interpret your results involves “normalizing” the scores to produce a percentile ranking SUS is not diagnostic – its use is in classifying the ease of use of the site, application or environment being tested