hard20 pts · first answer countsusability-testingsusstatistics

SUS 72 versus 68 with 10 users each

The new design scores a mean SUS of 72 and the old one 68, with 10 different participants each. SUS standard deviations are typically around 17. What is the best conclusion?

A.The new design is clearly better by 4 pointsB.The old design is clearly betterC.The gap is well within noise for this sample sizeD.SUS cannot be compared between groups

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SUS 72 versus 68 with 10 users each

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