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. Author manuscript; available in PMC: 2015 Nov 20.
Published in final edited form as: Stat Med. 2014 Jul 4;33(26):4605–4626. doi: 10.1002/sim.6258

Table 3.

Empirical rejection rates and powers of two-sample tests under the correct imputation model; The null hypothesis scenario corresponds to the first column (I vs. II). The second and third columns (I vs. III and I vs. IV) indicate powers. Configuration I is the generation model for group 1 (Z = 1), which is fixed, and configurations II, III, and IV correspond to the generation models for group 2 (Z = 0).

n % missing in configuration I Method 10% missing in configurations II, III, and IV
( η1(2),η2(2)) ( η1(2),η2(2)) ( η1(2),η2(2))
= (−2.65, 0.5) = (−2.6, 0.5) = (−2.68, 0.5)
I vs. II I vs. III I vs. IV
200 20% m=1 0.056 0.085 0.634
( η1(1),η2(1)) m=10 0.050 0.088 0.659
= (−1.38, 0) CC 0.062 0.075 0.601
30% m=1 0.060 0.070 0.548
( η1(1),η2(1)) m=10 0.054 0.075 0.578
= (−0.1, −1) CC 0.096 0.046 0.369
40% m=1 0.054 0.089 0.566
( η1(1),η2(1)) m=10 0.046 0.092 0.585
= (−0.1, −0.36) CC 0.105 0.058 0.398
30% m=1 0.057 0.095 0.649
( η1(1),η2(1)) m=10 0.054 0.079 0.663
= (−1.38, 0.56) CC 0.059 0.077 0.693
40% m=1 0.056 0.099 0.562
( η1(1),η2(1)) m=10 0.049 0.090 0.599
= (−1.38, 1.1) CC 0.072 0.117 0.712

400 20% m=1 0.053 0.126 0.896
( η1(1),η2(1)) m=10 0.050 0.128 0.924
= (−1.38, 0) CC 0.061 0.115 0.897
30% m=1 0.061 0.118 0.861
( η1(1),η2(1)) m=10 0.050 0.121 0.886
= (−0.1, −1) CC 0.138 0.057 0.712
40% m=1 0.050 0.129 0.822
( η1(1),η2(1)) m=10 0.049 0.119 0.868
= (−0.1, −0.36) CC 0.113 0.064 0.687
30% m=1 0.057 0.117 0.867
( η1(1),η2(1)) m=10 0.054 0.118 0.878
= (−1.38, 0.56) CC 0.059 0.146 0.909
40% m=1 0.057 0.120 0.829
( η1(1),η2(1)) m=10 0.056 0.128 0.856
= (−1.38, 1.1) CC 0.070 0.204 0.928