Table 2.
Results of system usability scale, decisional conflict, and eye tracking
| Conventional | DCIDA | |
|---|---|---|
|
System Usability Score, mean (range) |
- |
74 (68–85) |
|
Decisional conflict uncertainty subscale (0 = good, 4 = bad), |
|
|
| I am clear about the best choice for me |
2.9 |
2.3 |
| I feel sure about what to choose |
2.8 |
2.2 |
| This decision is easy for me to make |
3.4 |
3.1 |
| Overall score |
50.4 |
38.3 |
|
Mean fixation duration (secs) |
|
|
| Most important attribute |
4.7 |
5.6 |
| 2nd most important attribute |
4.2 |
3.3 |
| Least important attribute |
3.1 |
1.1 |
| Other attributes |
14.1 |
8.5 |
| Other areas of the screen |
16.2 |
12.8 |
| Total |
42.3 |
31.3 |
|
Mean relative fixation |
|
|
| Most important attribute |
18% |
30% |
| 2nd most important attribute |
16% |
18% |
| Least important attribute |
12% |
6% |
|
Relative fixation – in 7 participants changed preference |
|
|
| Most important attribute |
17% |
34% |
| 2nd most important attribute |
14% |
19% |
| Least important attribute | 10% | 5% |