Table 2 Summary of task 2 results. Mean value (M) of the used time and mean value (M) of the mistakes made (a = automatically measured and m = manually measured) for the 2D and 3D system as well as the corresponding mean difference (MD) between the two systems. Additionally the correlating P-values for the difference in time and mistakes of the Group A and B put together
Group A | Group B | ||||||
|---|---|---|---|---|---|---|---|
Mistakes (a) | Mistakes (m) | Time (s) | Mistakes (a) | Mistakes (m) | Time (s) | ||
Student | M 2D | 1.91 | 5.45 | 137 | 4.22 | 6.00 | 162 |
M 3D | 3.91 | 2.27 | 159 | 2.89 | 2.56 | 135 | |
MD 2D-3D | −2.00 | 3.18 | −22 | 1.33 | 3.44 | 27 | |
Non-experts | M 2D | 4.30 | 4.82 | 100 | 1.00 | 4.75 | 90 |
M 3D | 3.36 | 2.64 | 106 | 3.00 | 2.50 | 83 | |
MD 2D-3D | 0.94 | 2.18 | −5 | −2.00 | 2.25 | 7 | |
Experts | M 2D | 10.00 | 4.17 | 81 | 5.88 | 4.44 | 101 |
M 3D | 2.50 | 2.20 | 79 | 2.00 | 0.88 | 80 | |
MD 2D-3D | 7.50 | 1.97 | 2 | 3.88 | 3.57 | 21 | |
P-value | Mistakes Group A + B 0.7902 | Mistakes Group A + B 0.6275 | Time Group A + B 0.0041 | ||||