Table 4.

Incremental Regression of nurse work motivation, hospitals administrated by Addis Ababa Health Bureau, August 2010.

Variable	OLS1	OLS2	OLS3	OLS4	OLS5
Payment	0.71**	-	0.77**	0.70**	0.77**
Promotion	0.11**	0.28**	-	0.13**	0.12**
Recognition	0.03*	0.11*	0.07	-	0.08*
Benefits	0.10**	0.69**	0.09	0.13**	-
R square	0.79	0.62	0.78	0.79	0.78
F-value	211.5**	125.5**	268.5**	282.5**	278.8**
D-W	1.675	1.76	1.66	1.62	1.64

* and ** indicates significance at 0.05, 0.01 level respectively