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Table 6 Mean ratings on system usability scale items: online teaching materials and text messaging

From: Integrating technology into cognitive behavior therapy for adolescent depression: a pilot study

Item Mean (SD)
1. I would like to use this system frequently 3.4 (0.90)
2. I found the system unnecessarily complex 3.3 (0.85)
3. I thought the system was easy to use 3.3 (0.85)
4. I think I would need the support of a technical person to be able to use this system 3.2 (0.87)
5. I found the various functions in this system were well integrated 3.6 (0.66)
6. I thought there was too much inconsistency in this system 3.5 (0.58)
7. I would imagine that most people would learn to use this system very quickly 3.2 (0.75)
8. I found the system very cumbersome to use 3.5 (0.65)
9. I felt confident using the system 3.5 (0.53)
10. I needed to learn a lot of things before I could get going with this system 3.3 (0.69)
  1. Scale range 1 = strongly disagree, 2 = disagree, 3 = neutral, 4 = agree, 5 = strongly agree
  2. Items 2, 4, 6, 8 and 10 are reverse scored