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Table 4 System usability scale scores for the online tutorial and teaching/text system

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

Adjective SUS cutoff score Mean (SD) in the current study
Worst imaginable 12.5  
Awful 20.3  
Poor 35.7  
Ok 50.9  
Good 71.4 78.4 (20.4)-Tutorial
84.4 (13.8)-Teaching/text
Excellent 85.5  
Best imaginable 90.0  
  1. From Bangor et al. [66]