Table 1.

Empirical bias , empirical standard error, and average estimated standard error of the estimators of with a continuous outcome

Known	Bias	ESE	ASE		Bias	ESE	ASE		Bias	ESE	ASE
	04	14	14		01	07	07		02	17	17
	06	15	15		01	06	06		05	16	16
	01	03	03		00	02	02		00	03	03
Correct	Bias	ESE	ASE		Bias	ESE	ASE		Bias	ESE	ASE
	41	15	14		07	06	06		73	13	13
	38	15	15		05	06	08		76	13	15
	02	03	03		08	02	02		05	03	03
Mis	Bias	ESE	ASE		Bias	ESE	ASE		Bias	ESE	ASE
	04	1e1	1e1		20	1e3	1e3		10	2e2	1e2
	52	2e0	1e1		10	1e3	1e3		30	3e2	2e2
	03	03	03		08	03	03		03	05	05

ESE, empirical standard error; ASE, average estimated standard error; Known , true propensity score known; Correct , propensity score unknown but correctly modelled; Mis , propensity score incorrectly modelled.