Head-Eye movement control tests in patients with chronic neck pain; Inter-observer reliability and discriminative validity

Table 5 Results inter-observer reliability: weighted kappa (wK) 95% confidence interval (95%CI), percentage agreement (% Agreement)

Tests: Sitting position	wK	95% CI	% Agreement
Eye movements	0.72	0.55-0.88	73
Gaze stability	0.86	0.75-0.97	85
Sequential head and eye movement	0.86	0.76-0.97	83
Eye movements in 45° relative neck rotation to the right	0.54	0.29-0.79	69
Eye movements in 45° relative neck rotation to the left	0.79	0.62-0.97	85
Tests: Standing position	wK	95% CI	% Agreement
Eye movements	0.78	0.61-0.95	85
Gaze stability	0.59	0.36-0.82	66
Sequential head and eye movement	0.69	0.53-0.85	61
Eye movements in 45° relative neck rotation to the right	0.82	0.67-0.96	85
Eye movements in 45° relative neck rotation to the left	0.70	0.50-0.90	80

ISSN: 1471-2474