Table 1 Confidence levels and course usefulness of the participants for different joints

3.03 ± 0.90*^abcd

2.35 ± 0.96*^aef

2.41 ± 0.97*^bgj

2.07 ± 1.02*^cfghi

2.83 ± 1.03*^ehj

2.53 ± 0.99*^di

0.007

3.98 ± 0.67*^abc

3.65 ± 0.80*^aef

3.71 ± 0.79*^bg

3.32 ± 0.85*^cfghi

3.95 ± 0.66*^eh

3.77 ± 0.73*ⁱ

< 0.001

4.51 ± 0.58

4.58 ± 0.57

4.54 ± 0.65

4.45 ± 0.62

4.52 ± 0.59

4.50 ± 0.66

0.33

4.57 ± 0.59

4.62 ± 0.57

4.60 ± 0.59

4.47 ± 0.64

4.59 ± 0.57

4.55 ± 0.69

0.32