From: A combination of two methods for evaluating the usability of a hospital information system
Heuristic evaluation, Mean ± SD | Think aloud, Mean ± SD | Think aloud + Heuristic evaluation, Mean ± SD | Both Think aloud and Heuristic evaluation, Mean ± SD | Only Think aloud, Mean ± SD | Only Heuristic evaluation, Mean ± SD | |
---|---|---|---|---|---|---|
Satisfaction | 3.17 ± 3.02 | 3.29 ± 0.36 | 3.22 ± 2.41 | 4.21 ± 4.83 | 3.29 ± 0.36 | 2.59 ± 0.65 |
Effectiveness | 3.47 ± 0.59 | 3.65 ± 0.41 | 3.53 ± 0.55 | 3.79 ± 0.32 | 3.65 ± 0.46 | 2.85 ± 0.49 |
Efficiency | 3.58 ± 0.66 | 3.31 ± 0.35 | 3.41 ± 0.5 | 3.96 ± 0.1 | 3.31 ± 0.35 | 2.92 ± 0.71 |
Learnability | 3.05 ± 0.66 | 3.23 ± 0.21 | 3.1 ± 0.57 | 3.53 ± 0.59 | 3.23 ± 0.21 | 2.86 ± 0.59 |
Error | 3 ± 0.67 | 3.22 ± 0.38 | 3.06 ± 0.61 | 3.55 ± 0.49 | 3.22 ± 0.38 | 2.67 ± 0.54 |
severity rating of Total | 3.25 ± 0.25 | 3.34 ± 0.17 | 3.26 ± 1.67 |