Table 5.

Inter- and intra examiner reliability of Gaze Stability (GS) and Smooth Pursuit Neck Torsion Test (SPNTT)

Variable		N	Prevalence of index condition	Expected agreement (%)	Overall agreement (%)	κ -value	PAB-AK	(95% CI)
GS	Inter 1	42	0.48	50.00	85.71	0.71	-	(0.50; 0.93)
	Inter 2	36	0.56	50.46	83.33	0.66	-	(0.42; 0.91)
	Intra A	27	0.43	51.03	96.30	0.92	-	(0.78; 1.00)
	Intra B	27	0.50	49.93	88.89	0.78	-	(0.54; 1.00)
SPNTT	Inter 1	42	0.27	59.98	78.57	0.46	0.57	(0.17; 0.76)
	Inter 2	36	0.38	52.78	86.11	0.71	0.72	(0.47; 0.94)
	Intra A	27	0.22	64.33	85.19	0.59	0.70	(0.24; 0.93)
	Intra B	27	0.31	56.79	88.89	0.74	0.78	(0.47; 1.00)

κ statistics, prevalence of the index condition, expected agreement, overall agreement, Prevalence Adjusted Bias Adjusted Kappa (PABAK) and 95% Confidence Interval (95% CI).