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Table 3 Comparison of physician and patient satisfaction ratings in the intervention group with the Wilcoxon signed-rank test

From: Pitfalls in the statistical examination and interpretation of the correspondence between physician and patient satisfaction ratings and their relevance for shared decision making research

  patients physicians    
Item mean (sd) mean (sd) mean (sd) of differences median of differences Wilcoxon-test (Z)
1 1.13 (.14) 1.49 (.39) 0.34 (0.70) 0 -4.56 (p < .001)
2 1.15 (.18) 1.57 (.46) 0.42 (0.77) 0 -4.83 (p < .001)
3 1.09 (.12) 1.46 (.43) 0.37 (0.65) 0 -4.71 (p < .001)
4 1.15 (.20) 1.56 (.43) 0.40 (0.82) 0 -4.21 (p < .001)
5 1.24 (.25) 1.66 (.45) 0.40 (1.00) 0 -4.37 (p < .001)
6 1.12 (.13) 1.59 (.42) 0.46 (0.85) 0 -5.25 (p < .001)
  1. We applied Bonferroni correction for multiple testing (α = .05/6 = .008). Item means and standard deviations and means, standard deviations, and medians of the differences are listed. The scale ranges from 1 (totally agree) to 5 (totally disagree).