Table 2 Pre- and post-intervention tests score in the three groups. Full scores of theory test, identification test, and total score were 18, 25, and 43 points, respectively. The median and quartiles of the total scores were not simply equal to the sum of the theory score and the identification score. cKruskal-Walis H
|  | VR skulls (N = 25) | Cadaveric skulls (N = 25) | Atlas (N = 23) | p-value |
|---|---|---|---|---|
Pre-intervention score (Median [IQR]) | ||||
 Total | 9 [6.5–13] | 8 [7–11] | 10 [7–14] | 0.634c |
 Theory test | 7 [5–9] | 7 [5–9] | 7 [6–10] | 0.667c |
 Identification test | 3 [1.5–4.5] | 2 [0.5–3] | 2 [1–5] | 0.176c |
Post-intervention score (Median [IQR]) | ||||
 Total | 30 [22–33.5] | 26 [20–31.5] | 28 [20–33] | 0.571c |
 Theory test | 15 [12.5–16] | 14 [12.5–15.5] | 14 [11–16] | 0.824c |
 Identification test | 15 [10–18] | 12 [8–15.5] | 13 [8–18] | 0.511c |
Change in score (Median [IQR]) | ||||
 Total | 18 [14.5–21.5] | 18 [12.5–21.5] | 16 [10–20] | 0.317c |
 Theory test | 7 [5–9] | 7 [4.5–10] | 6 [3–8] | 0.524c |
 Identification test | 12 [8–12] | 9 [7.5–13.5[ | 9 [7–13] | 0.278c |