Table 1.

Maximum type 1 error rate for with and without treatment selection, with or without adjustment for multiplicity and with equal or flexible second-to-first stage ratios as compared to the case

nominal α
treatment selection of most promising treatment
	equal (Proschan and Hunsberger, 1995)	flexible (Graf and Bauer, 2011)	equal (Section 4.1)	flexible (Section 4.2)	equal (Section 4.1)	flexible (Section 4.2)
0.01	0.0267	0.0491	0.0398	0.0697	0.0224	0.0407
0.025	0.0616	0.1064	0.0887	0.1466	0.0518	0.0892
0.05	0.1146	0.1867	0.1594	0.2496	0.0968	0.1588
without treatment selection
	equal (Proschan and Hunsberger, 1995)	flexible (Graf and Bauer, 2011)	equal (Section 5.1)	flexible (Section 5.2)	equal (Section 5.1)	flexible (Section 5.2)
0.01	0.0267	0.0491	0.0478	0.0800	0.0263	0.0473
0.025	0.0616	0.1064	0.1058	0.1701	0.0610	0.1037
0.05	0.1146	0.1867	0.1897	0.2885	0.1138	0.1842