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. 2001 Nov 30;70(1):142–156. doi: 10.1086/324709

Table 6.

Observed Type I Error Rates from Simulations of Situation 2, in Which Nominal Test Size is 0.05

Type I Error Rate under GM
Complete Ascertainment
Single Ascertainment
AM Assumed f = .9 f = .7 f = .5 f = .9 f = .7 f= .5
Complete ascertainment .046 .045 .046 .060 .096 .144
Single ascertainment .041 .045 .046 .041 .045 .046
Random ascertainment .041 .045 .044 .041 .045 .044