Table 3 Participants’ confidence scores per application at various evaluation time points

General Skills

(Maximum score = 15)

11.38 ± 2.2

(9.5, 13.2)

13.38 ± 1.5

(12.1, 14.6)

14.0 ± 1.2

(13, 15)

14.38 ± 1.19

(13.4,15 0.4)

0.005

Lung Ultrasound

(Maximum score = 20)

14.9 ± 2.9

(12.2, 17.5)

17.9 ± 1.7

(16.3,19.4)

18.6 ± 1.6

(17.1, 20.1)

19.1 ± 1.9

(17.4,20.9)

< 0.001

Cardiac Ultrasound

(Maximum score = 20)

15.3 ± 3.8

(12.4,18.3)

17.8 ± 1.9

(16.3, 19.3)

19.2 ± 1.2

(18.3, 20.1)

19.4 ± 1.3

(18.4, 20.5)

0.015

Trauma Ultrasound

(Maximum score = 20)

16.4 ± 2.8

(13.8,19.0)

18 ± 2

(16.2, 19.9

19.1 ± 1.6

17.7, 20.6)

19.4 ± 1.5

(18.0, 20.8)

0.033

First trimester Ultrasound

(Maximum score = 5)

3.3 ± 1.2

(2.6, 4.1)

4.3 ± 0.9

(3.8, 4.9)

4.5 ± 1.2

(3.8, 5.2)

4.8 ± 0.4

(4.6, 5.1)

0.021

Abdominal Aorta Ultrasound

(Maximum score = 5)

3.8 ± 0.8

(3.3, 4.3)

4.5 ± 0.5

(4.2, 4.9)

4.4 ± 1.0

(3.7, 5.1)

4.7 ± 0.6

(4.3, 5.2)

0.037