Table 1.

Evaluation of bias and efficiency

	γ = −1.5			γ = 0
Method	Mean Est	SD Est	Mean SE	Mean Est	SD Est	Mean SE
	Standard Application of Methods
Two-stage	−1.526	0.239	0.230	−0.043	0.161	0.156
Seq Strat	−1.475	0.314	0.253	0.027	0.217	0.158
MSM	−1.259	0.358	0.318	0.060	0.296	0.254
MSM (obsPSA)	−1.228	0.385	0.314	0.065	0.291	0.243
	Analysis Using True PSA
Two-stage	−1.584	0.238	0.230	−0.076	0.158	0.156
Seq Strat	−1.546	0.321	0.259	−0.002	0.213	0.158
MSM	−1.272	0.356	0.318	0.015	0.293	0.253
	Standard Application: Results for n=5000
Two-stage	−1.513	0.104	0.102	−0.039	0.069	0.070
Seq Strat	−1.442	0.211	0.174	0.031	0.095	0.069
MSM	−1.246	0.259	0.185	0.014	0.238	0.157
	Analysis Using True SADT Probabilities
MSM	−1.290	0.434	0.327	0.014	0.335	0.256
	Analysis Using Random Treatment Times
Two-stage	−1.411	0.226	0.209	0.022	0.140	0.132
Seq Strat	−1.387	0.252	0.213	0.057	0.166	0.131
MSM	−1.269	0.214	0.204	−0.028	0.130	0.131
Unweighted MSM	−1.271	0.218	0.204	−0.030	0.137	0.131