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Table 1 Inter-rater reliability of three tests of muscular functional coordination of the lumbar spine.

From: Inter-rater reliability of three standardized functional tests in patients with low back pain

Single limb stance right AJ      
JT Positive Negative Not valid Totals Percentage agreement Kappa(κ)
Positive 2 0 0 2 100% 1.0
Negative 0 17 0 17   
Not valid 0 0 0 0   
Totals 2 17 0 19   
Single limb stance left AJ      
JT Positive Negative Not valid Totals Percentage agreement Kappa (κ)
Positive 4 1 0 5 95% 0.88
Negative 0 13 0 13   
Not valid 0 0 1 1   
Totals 4 14 1 19   
Sitting on a ball right AJ      
JT Positive Negative Not valid Totals Percentage agreement Kappa (κ)
Positive 9 2 0 11 89% 0.79
Negative 0 8 0 8   
Not valid 0 0 0 0   
Totals 9 10 0 19   
Sitting on a ball left AJ      
JT Positive Negative Not valid Totals Percentage agreement Kappa (κ)
Positive 12 0 0 12 95% 0.88
Negative 1 6 0 7   
Not valid 0 0 0 0   
Totals 13 6 0 19   
Unilateral pelvic lift right AJ      
JT Positive Negative Not valid Totals Percentage agreement Kappa (κ)
Positive 6 2 0 8 79% 0.61
Negative 2 8 0 10   
Not valid 0 0 1 1   
Totals 8 10 1 19   
Unilateral pelvic lift left AJ      
JT Positive Negative Not valid Totals Percentage agreement Kappa (κ)
Positive 8 3 0 11 74% 0.47
Negative 2 6 0 8   
Not valid 0 0 0 0   
Totals 10 9 0 19   
  1. Right/left means the supported side. Results achieved by rater AJ and rater JT. N = 19