TABLE 2. Two-way analysis of variance (measurement and method) with repetition.

EFFECT	DF effect	MS effect	DF error	MS error	F	P
Measurement	3	14.246	219	2.403	5.92774	0.000662*
Method	1	2.0269	73	0.185	10.92811	0.001471*
Interaction	3	0.03345	219	0.134	0.24896	0.862020

^*Statistically significant difference (p<0.01)