Table 8. 2-way ANOVA analysis of felling operation using process and slope factors by OWAS, RULA and REBA.

Item	Degree of freedom	OWAS		RULA		REBA
		F	p-value	F	p-value	F	p-value
Total	232
Process1) (A)	2	27.551	<0.0001*	7.547	<0.0001*	79.254	<0.0001*
Slope (B)	1	1.073	0.301	1.098	0.296	16.415	<0.0001*
A × B	2	13.855	<0.0001*	3.700	0.026*	8.161	<0.0001*
Error	226

moving, felling and delay
p<0.05