Table 3 Means (S.D.s) for usability questions
No. | Questions | Mean (S.D.)a |
|---|---|---|
1 | Did the MR visual display (head-mounted-display) create difficulties for performing? | 4.31 (0.96) |
2 | Did you often feel disoriented? | 2.93 (1.18) |
3 | Did you have a natural perspective that gives you a compelling sense of your hand-motion while manipulating the tracking cube? | 3.38 (0.88) |
4 | With the MR system, are you isolated from and not distracted by outside activities? | 3.75 (1.13) |
5 | Did the surrounding real background help your spatial comprehension of the model? | 3.56 (1.15) |
6 | Was the FOV (field of view) appropriate for supporting this activity? | 2.63 (1.2) |
7 | Does visual output have adequate stability of the image as you move with no perceivable distortions in visual images? | 2.81 (1.17) |
8 | Does visual output have acceptable degree of response delay with no perceivable distortions in visual images? | 3.31 (1.14) |
9 | Is the MR display effective in conveying convincing scenes of models appearing as if in the real world? | 3.88 (0.88) |
10 | Can you predict responses to your actions? | 4.0 (0.57) |
11 | Did you have satisfactory control over the system? | 3.38 (0.88) |
12 | Is the MR system comfortable for long-term use? | 2.06 (1.28) |
13 | Is tracking marker lightweight, portable, non-encumbering, and comfortable thereby avoiding issues of limited your mobility and fatigue? | 3.94 (0.85) |
14 | Did you experience excessive eye fatigue? | 3.5 (1.09) |
15 | Did you experience nausea during your interaction with MR system? | 1.75 (1.0) |