Intra and interrater reliability and clinical feasibility of a simple measure of cervical movement sense in patients with neck pain

Table 4 Feasibility real time rating vs. video rating (n = 20)

Comparison	Outcome variable	Pattern	Velocity	ICC agreement (95% CI)	95% CI	SEM
Rater 1 vs. real time	Time	F8	Accurate	1	1–1	< 0.01
		F8	Accurate & Fast	1	1–1	< 0.01
		ZZ	Accurate	1	1–1	< 0.01
		ZZ	Accurate & Fast	0.99	0.98–1	0.04
	Error Frequency	F8	Accurate	0.73	0.58–0.82	2.90
		F8	Accurate &Fast	0.75	0.61–0.83	1.41
		ZZ	Accurate	0.84	0.72–0.90	1.02
		ZZ	Accurate &Fast	0.56	0.36–0.70	1.71
Rater 2 vs. real-time	Time	F8	Accurate	1	0.99–1	0.05
		F8	Accurate &Fast	1	1–1	0.02
		ZZ	Accurate	1	1–1	< 0.01
		ZZ	Accurate &Fast	1	0.99–1	0.02
	Error frequency	F8	Accurate	0.67	0.50–0.78	2.98
		F8	Accurate &Fast	0.67	0.53–0.78	1.70
		ZZ	Accurate	0.74	0.60–0.82	1.60
		ZZ	Accurate &Fast	0.54	0.39–0.69	1.42

ICC Intraclass Correlation Coefficients for agreement, 95% CI 95% Confidence interval, SEM Standard error of measurement, F8 figure of 8, ZZ zigzag

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