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. Author manuscript; available in PMC: 2014 Jan 5.
Published in final edited form as: Stat Med. 2011 Aug 4;30(24):10.1002/sim.4322. doi: 10.1002/sim.4322

Table 5.

SND Q Estimation: variations of base-case (θ = 0.90, true A = {X1 > 0, X2 < 0}) and null-case (θ = 0 true A null) for VT(R)0.05. SD in parentheses.

Q(A) Q(Â) Q̂(Â) Q̂(Â)BC
θ = 0.9:
 Base Case 0.139 0.070(0.047) 0.111(0.046) 0.072(0.044)
p = 30 0.137 0.062(0.047) 0.092(0.049) 0.069(0.048)
 Correlated 0.129 0.055(0.040) 0.110(0.035) 0.061(0.036)
 Sub-spec (ai) 0.133 0.078(0.043) 0.113(0.043) 0.073(0.046)
 Sub-spec (ai, bi) 0.126 0.072(0.041) 0.106(0.043) 0.064(0.048)
n = 400 0.137 0.046(0.052) 0.107(0.050) 0.051(0.056)
n = 2000 0.135 0.096(0.044) 0.109(0.036) 0.081(0.042)
 Larger |A| 0.094 0.066(0.033) 0.105(0.042) 0.065(0.045)
θ = 1.5 0.228 0.167(0.057) 0.156(0.040) 0.132(0.056)
θ = 0:
 Base Case 0.000 0.010(0.023) 0.074(0.054) 0.036(0.045)
p = 30 0.000 0.016(0.026) 0.072(0.053) 0.043(0.043)
 Correlated 0.000 0.006(0.023) 0.095(0.043) 0.041(0.038)
 Sub-spec (ai) 0.000 0.010(0.029) 0.079(0.046) 0.037(0.036)
 Sub-spec (ai, bi) 0.000 0.011(0.028) 0.063(0.049) 0.025(0.037)
n = 400 0.000 0.010(0.035) 0.099(0.046) 0.038(0.046)
n = 2000 0.000 0.003(0.017) 0.064(0.045) 0.035(0.034)