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

From: Impact of peer feedback on the performance of lecturers in emergency medicine: a prospective observational study

   Lecture series 1 Lecture series 2
   No didactic training Training No didactic training Training
Overall R1 3.29 ± 1.53 3.85 ± 1.39 4.32 ± 0.93* 4.72 ± 0.53*
  R2 3.29 ± 1.53 3.84 ± 1.39 4.29 ± 0.93* 4.71 ± 0.53*
  IRR 0.84   0.84  
Content & organisation R1 2.73 ± 1.56 3.11 ± 1.49 4.16 ± 0.95° 4.52 ± 0.63°
  R2 2.71 ± 1.56 3.10 ± 1.49 4.18 ± 0.95° 4.52 ± 0.63°
  IRR 0.82   0.83  
Visualisation R1 3.66 ± 1.16 4.52 ± 0.56 4.51 ± 0.65* 4.93 ± 0.13*
  R2 3.63 ± 1.16 4.52 ± 0.56 4.43 ± 0.65* 4.95 ± 0.13*
  IRR 0.80   0.80  
Delivery R1 3.96 ± 1.26 4.52 ± 0.89 4.35 ± 0.91§ 4.87 ± 0.31§
  R2 3.96 ± 1.26 4.51 ± 0.89 4.36 ± 0.91§ 4.83 ± 0.31§
  IRR 0.9   0.89  
  1. Data are presented as the mean + standard deviation for each category. Each item within a category was rated on a 5-point Likert scale (5 = excellent demonstration of skill, 3 = adequate and 1 = does not demonstrate).
  2. Significance of improvement after intervention: *p<0.05; °p<0.005, §not significant.
  3. R1: Rater 1; R2: Rater 2; IRR: Inter-rater reliability measured as the kappa coefficient.