Table 1 Weighted kappa (K _w ) and overall agreement (P _o ) using linear weights, frontal plane postural orientation, 3 ^rd and 7 ^th grade (n= 72)

Right ankle

0.71

0.92

Right ankle

0.60

0.92

- knee

0.68

0.89

- knee

0.54

0.86

- hip

0.80

0.93

- hip

0.61

0.89

- trunk

0.86

0.97

- trunk

0.73

0.96

Left ankle

0.67

0.92

Left ankle

0.61

0.92

- knee

0.59

0.87

- knee

0.66

0.92

- hip

0.70

0.91

- hip

0.70

0.92

- trunk

0.77

0.94

- trunk

0.77

0.97