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. Author manuscript; available in PMC: 2020 Aug 1.
Published in final edited form as: Int J Psychol. 2019 Dec 22;55(4):657–673. doi: 10.1002/ijop.12640

TABLE 2.

Means and SDs for each item of the System Usability Scale (SUS)

Means and SDs for each item of the SUS
Mean score SD
SUS
I thought the website was easy to use 4.00 -
I think that I would need the support of a technical person to be able to use this website 3.73 0.59
I needed to learn a lot of things before I could get going with this website 3.47 0.83
I would imagine that most people would learn to use this website very quickly 3.33 1.11
I felt very confident using the website 3.27 0.46
I found the website very cumbersome to use 3.27 0.59
I found the website unnecessarily complex 3.20 1.21
I think that I would like to use this website frequently 3.00 0.76
I thought there was too much inconsistency in this website 2.87 0.64
I found the various functions in this website were well integrated 2.80 0.77

Note: All participants (n = 15) responded to every item.

Odd-numbered items are scored by subtracting one from the response value, while even-numbered items are scored by subtracting the response value from the number five. The sum of all items is then multiplied by 2.5.