Table 3.

Degrees of freedom (df), F-ratio and P-value results of anovas comparing factor scores of informative components (PCs) from three PCAs. PCA I, distal scansor; PCA II, intermediate scansor; PCA III, proximal scansor. Significant P-values are marked with an asterisk

	PCA I			PCA II			PCA III
PC factor	df group; error	F	P	df group; error	F	P	df group; error	F	P
Scores
1	7, 16	5.041	0.004*	7, 21	3.680	0.009*	7, 23	3.171	0.017*
2	7, 16	1.888	0.139	7, 21	1.990	0.105	7, 23	2.589	0.040*
3	7, 16	5.748	0.002*	7, 21	8.504	0.000*	7, 23	3.092	0.019*
4	7, 16	1.328	0.300	7, 21	0.610	0.742	7, 23	5.602	0.001*
5	7, 16	1.855	0.145	7, 21	1.952	0.111	–	–	–
6	7, 16	0.568	0.771	–	–	–	–	–	–