Comparison of two dependent within subject coefficients of variation to evaluate the reproducibility of measurement devices

Table 3 Empirical power based on 2000 runs for testing θ ₁ = θ ₂ using the LRT and Wald test for n = 30 subjects.

n = 30	(ρ₁, ρ₂) = (0.7,0.5) (θ₁, θ₂) =(0.1,0.2)			(ρ₁, ρ₂) = (0.6, 0.5) (θ₁, θ₂) = (0.15,0.2)			(ρ₁, ρ₂) = (0.5, 0.4) (θ₁, θ₂) = (0.2, 0.3)
ρ₁₂	0.2	0.3	0.4	0.2	0.3	0.4	0.1	0.2	0.3
m = 2
Wald	0.92	0.93	0.94	0.30	0.33	0.32	0.55	0.50	0.51
LRT	0.94	0.95	0.96	0.35	0.33	0.34	0.60	0.56	0.54
m = 3
Wald	0.99	1.00	1.00	0.55	0.56	0.54	0.79	0.80	0.79
LRT	1.00	1.00	1.00	0.57	0.56	0.55	0.82	0.83	0.83
m = 5
Wald	1.00	1.00	1.00	0.80	0.82	0.84	0.96	0.95	0.97
LRT	1.00	1.00	1.00	0.81	0.82	0.85	0.97	0.97	0.98

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