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Table 3 Results of the Wilcoxon post hoc test

From: Adaptive hybrid robotic system for rehabilitation of reaching movement after a brain injury: a usability study

  RMSE PR
1st vs 4th trial 1st vs 8th trial 1st vs 12th trial 1st vs 4th trial 1st vs 8th trial 1st vs 12th trial 4th vs 8th trial 4th vs 12th trial
Shoulder (Ø2) p = 0.002
r = −0.62
p = 0.005
r = −0.57
p = 0.003
r = −0.6
p < 0.001
r = −0.71
p < 0.001
r = −0.71
p < 0.001
r = −0.71
p > 0.008 p = 0.002
r = −0.62
Elbow (Ø5) p = 0.001
r = −0.67
p < 0.001
r = −0.71
p < 0.001
r = −0.71
p < 0.001
r = −0.71
p < 0.001
r = −0.71
p < 0.001
r = −0.71
p = 0.005
r = −0.57
p < 0.001
r = −0.71
  1. Bonferroni correction for multiple comparison established the level of significant at p < 0.0083. p: level of significance; r: effect size; RMSE root mean squared error, PR power ratio