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Table 3 Questions included in SUS questionnaire

From: Learning in smart environments: user-centered design and analytics of an adaptive learning system

  Questions Focus group Students
   M SD M SD
1 I think that I would like to use this system frequently. 3 0.8 2.8 1.1
2 I found the system unnecessarily complex. 3.6 1.3 2.7 1.1
3 I thought the system was easy to use. 2.5 1.1 3.1 1.0
4 I think that I would need the support of a technical person to be able to use this system. 2.4 1.3 1.5 1.0
5 I found the various functions in this system were well integrated. 3 0.8 3.1 0.9
6 I thought there was too much inconsistency in this system. 3.4 1.1 2.3 0.8
7 I would imagine that most people would learn to use this system very quickly. 2.8 1.2 3.4 1.1
8 I found the system very cumbersome to use. 3.4 1.1 2.3 0.9
9 I felt very confident using the system. 2.9 0.8 3.3 0.9
10 I needed to learn a lot of things before I could get going with this system. 2.4 0.7 4.3 1.0