Table 2

Mean (SD) of practical examination marks for each group and difference (95% CI) between groups
Outcome Groups Difference between groups
Exp n = 35 Con n = 24 Exp minus Con
Total mark /25 19.7 (2.8) 18.1 (3.6) 1.6 (−0.1 to 3.3)
Informed Consent /1 0.9 (0.3) 0.9 (0.3) 0 (−0.2 to 0.1)
Rationale for the practical skill /4 2.7 (0.8) 2.1 (1.1) 0.6 (0.1 to 1.11)
Explanation of the practical skill /2 1.8 (0.4) 1.6 (0.7) 0.2 (−0.1 to 0.5)
Effectiveness of the practical skill /4 2.9 (0.8) 2.4 (1.2) 0.5 (0 to 1.1)
Specificity of instructions and feedback /4 2.9 (0.8) 2.8 (0.9) 0.1 (−0.4 to 0.5)
Progression of the practical skill /4 3.1 (0.6) 3.2 (0.8) −0.1 (−0.5 to 0.3)
Evaluation of the effectiveness of the practical skill /2 1.9 (0.2) 1.8 (0.6) 0.2 (−0.1 to 0.4)
Safety /3 2.4 (0.7) 2.4 (0.9) 0.1 (−0.4 to 0.5)
Hygiene /1 1.0 (0) 1.0 (0) 0 (0 to 0)

Preston et al.

Preston et al. BMC Medical Education 2012 12:119   doi:10.1186/1472-6920-12-119

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