Table 4.

Linear best-fit approximations for intra-observer validation data

Description of Test	Slope	Intercept	R2
Varus-valgus, 0 deg varus, 0 deg flexion	0.9977	–0.2493	0.9894
Varus-valgus, 0 deg varus, 90 deg flexion	1.0252	–0.2344	0.9923
Varus-valgus, 10 deg varus, 0 deg flexion	1.0036	–0.1099	0.9945
Varus-valgus, 10 deg varus, 90 deg flexion	1.0126	–0.1332	0.9940
Internal-external, 0 deg flexion	1.0878	0.1673	0.9889
Internal-external, 90 deg flexion	1.0892	0.1646	0.9919
Anterior-posterior, 0 deg flexion	0.9667	1.0098	0.9903
Anterior-posterior, 90 deg flexion	1.0145	0.2731	0.9980