抄録
Gatekeeping procedures and mixture procedures are multiple testing procedures controlling the familywise error rate in the strong sense, and deal with hierarchically ordered multiple objectives in clinical trials. As applications of gatekeeping procedures and mixture procedures have been increasing, methodological issues and examples with respect to these procedures have drawn attention. In this article, we show the relationship of the closed testing procedure and gatekeeping procedures, the relationship of gatekeeping procedures and mixture procedures.
