Table 3. SUSa mean scores and statement interpretation of results.
| SUS question | Mean (rangeb) | Interpretation |
|---|---|---|
| Q1 (positive) | 3.75 (2.00‐5.00) | Users generally find the system usable, but there is room for improvement |
| Q2 (negative) | 1.88 (1.00‐3.00) | The system is not perceived as overly complex |
| Q3 (positive) | 3.75 (2.00‐5.00) | Users feel the system is fairly consistent in its design and behavior |
| Q4 (negative) | 3.00 (2.00‐5.00) | Some users feel they might need technical support to use the system effectively |
| Q5 (positive) | 4.25 (3.00‐5.00) | Users feel confident when using the system |
| Q6 (negative) | 2.00 (1.00‐3.00) | The system is not perceived as highly inconsistent, but there might be some inconsistencies. |
| Q7 (positive) | 3.75 (2.00‐5.00 | Users generally find the system easy to learn |
| Q8 (negative) | 3.00 (1.00‐5.00) | Some users find the system somewhat effortful to use, indicating potential usability barriers |
| Q9 (positive) | 3.38 (2.00‐5.00) | The system fits reasonably well into users’ workflows but could be improved |
| Q10 (negative) | 2.37 (1.00‐4.00) | Some users experience minor difficulties in learning how to use the system |
a
SUS, System Usability Scale.
b
Minimum-maximum values.