Table 2 Peer reviewer ratings of the lectures before (series 1) and after (series 2) written feedback

3.29 ± 1.53

3.85 ± 1.39

4.32 ± 0.93*

4.72 ± 0.53*

3.29 ± 1.53

3.84 ± 1.39

4.29 ± 0.93*

4.71 ± 0.53*

0.84

0.84

2.73 ± 1.56

3.11 ± 1.49

4.16 ± 0.95°

4.52 ± 0.63°

2.71 ± 1.56

3.10 ± 1.49

4.18 ± 0.95°

4.52 ± 0.63°

0.82

0.83

3.66 ± 1.16

4.52 ± 0.56

4.51 ± 0.65*

4.93 ± 0.13*

3.63 ± 1.16

4.52 ± 0.56

4.43 ± 0.65*

4.95 ± 0.13*

0.80

0.80

3.96 ± 1.26

4.52 ± 0.89

4.35 ± 0.91^§

4.87 ± 0.31^§

3.96 ± 1.26

4.51 ± 0.89

4.36 ± 0.91^§

4.83 ± 0.31^§

0.9

0.89