Item

Pre-scores

Post-scores

Post-pre scores

p value

Med (Q1 - Q3)

N

Med (Q1 - Q3)

N

Med (Q1 - Q3)

N

Practical skills^*

Cup insertion technique

1 (1 - 2)

36

2 (2 - 3)

36

1 (1 - 2)

36

p < 0.001

Cup application position

1 (1 - 2)

36

2 (2 - 3)

36

1 (1 - 2)

36

p < 0.001

Distance to perineum

1 (0 - 2)

25

2 (2 - 3)

29

1 (0.8 - 2)

22

p = 0.001

Initial axis of traction

1 (0 - 2)

36

3 (2 - 3)

35

2 (1 - 3)

35

p < 0.001

Position of accoucher

0 (0 - 2)

36

3 (3 - 3)

36

2 (1 - 2)

36

p < 0.001

Timing of upward pull

1 (1 - 2)

34

3 (2 - 3)

36

2 (0 - 2)

34

p < 0.001

Episiotomy timing

1 (0 - 2)

11

2 (1.3 - 3)

16

0 (0 - 1.5)

9

p = 0.197

Overall impression

1 (1 - 2)

36

2 (2 - 3)

36

1 (1 - 2)

36

p < 0.001

Theoretical skills^**

5 (3 - 5.8)

36

7 (7 - 8)

36

3 (2 - 4)

36

p < 0.001