Table 3

Intra-observer reliability: Kappa coefficient, 95% confidence intervals, percent agreement and standard error
Test BKFO SB SLKB+LL DLL-L DLL-ALE DSLL
Observer A
  Kappa coefficient (CI 95%) 0.64 (0.21-1.00) 0.48 (0.20-0.77) 0.43 (0.01-0.86) 0.63 (0.40-0.86) 0.39 (0.14-0.65) 0.24 (0–0.61)
  % agreement 93.8 75.0 87.5 81.3 68.8 78.1
  Std error 0.232 0.156 0.232 0.126 0.140 0.203
Observer B
  Kappa coefficient (CI 95%) 0.53 (0.11-0.95) 0.39 (0.10-0.67) 0.31 (0–0.68) 0.40 (0.15-0.66) 0.21 (0–0.43) 0.32 (0–0.69)
  % agreement 90.6 68.8 81.3 68.8 57.6 78.1
  Std error 0.228 0.157 0.203 0.138 0.120 0.202
Mean kappa coefficient a 0.58 0.44 0.37 0.52 0.30 0.22

Abbreviations: BKFO, Bent knee fall-out; SB, Standing bow; SLKB+LL, Single leg small knee bend + lunge-lean; DLL-L Double leg lift-lower; DLL-ALE, Double leg lift-alternate leg extension; DSLL, Double straight leg lower; CI 95%, 95% confidence intervals; Std error, standard error.

a Mean value of kappa coefficient obtained from observer A and B.

Monnier et al.

Monnier et al. BMC Musculoskeletal Disorders 2012 13:263   doi:10.1186/1471-2474-13-263

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