Table 5.
Walkthrough Satisfaction Questionnaire Results and Statistical Comparison to the Median of 3 Using Wilcoxon Signed-Rank Test (scale: 1= Strongly Disagree; 5 = Strongly Agree)
| Likert items | N | Mean | SD | Median | Range | W | p |
|---|---|---|---|---|---|---|---|
| I think I understood the usability walkthrough method | 9 | 4.11 | 0.60 | 4 | 3 – 5 | 36 | 0.005 |
| I felt efficient during the usability walkthrough | 9 | 4.11 | 0.60 | 4 | 3 – 5 | 36 | 0.005 |
| Using the usability walkthrough was easy for me | 9 | 4 | 0.73 | 4 | 3 – 5 | 28 | 0.009 |
| I think I understood the usability criteria | 9 | 4.22 | 0.67 | 4 | 3 – 5 | 36 | 0.006 |
| I feel able to evaluate the EHR software using the criteria | 9 | 4 | 0.71 | 4 | 3 – 5 | 28 | 0.009 |
| Using the usability criteria was easy for me | 9 | 4 | 0.71 | 4 | 3 – 5 | 28 | 0.009 |
| I found this method relevant for the EHR procurement process | 8 | 4.38 | 0.52 | 4 | 4 – 5 | 36 | 0.006 |
| I would appreciate to apply this method in other projects. | 8 | 4.38 | 0.71 | 4 | 4 – 5 | 28 | 0.010 |
N = Number of respondents; SD = standard deviation, W = Wilcoxon test statistic; p = p-value