Table 4:

Summary statistics for the treatment effect in the comparison between the proposed method and the method of Gao, Liu, Zeng, Xu, Lin, Diao, Golm, Heyse & Ibrahim (2017).

	Gao et al. (2017)				Proposed
Setting	Bias	SD	SE	MSE	Bias	SD	SE	MSE
Copy reference	0.024	0.166	0.169	0.028	−0.001	0.167	0.165	0.028
Jump to reference	0.003	0.149	0.150	0.022	0.012	0.146	0.147	0.021

Bias, difference between the sample average of the parameter estimates and true parameter value; SD, sample standard deviation of the parameter estimates; SE, sample average of the standard error estimates based on bootstrap method; MSE, mean-squared error.