Table 3.
Perspectives of participants on quality criteria of usability evaluation protocols (11-point Likert scale, n = 12)
| Use Case 1 (n = 12) | Use Case 2 (n = 12) | |||
|---|---|---|---|---|
| −IUT | +IUT | −IUT | +IUT | |
| A) How satisfied are you with your choices of evaluation measures? |
|
|
|
|
| B) How confident are you that this protocol would generate meaningful usability insights? |
|
|
|
|
| C) How comparable would the data from this study be to existing benchmarks or state-of-the-art studies? |
|
|
|
|
| D) How likely would your protocol improve if you would have more time for the task? |
|
|
|
|
Note. Group A (
) and Group B (
) are indicated to simplify visual intra-group comparison.