In this paper, we consider multiple testing procedures in which we simultaneously test a large number m of null hypotheses using the test statistics . The currently used procedure of controlling the false discovery rate (FDR) at a specified level requires that the statistics be either independently distributed or positively related. In practice Ti’s are rarely independent and it is not known how to ascertain the positive relationship between
‘s. In this paper, we propose to control the expected value of the Average False
Discovery (AFD) at some specied level. This AFD procedure controls its level
at the specified value independent of how ‘s are related. This specified value
can be chosen to control -FWER or FWER and even FDR at their respective
specified levels. Using simulation, we compare our proposed AFD procedure with
the FDR procedure. In terms of power and stability, the proposed AFD procedure
has an edge over the FDR procedure, as well as over -FWER procedure. Two
illustrative examples are given to compare the number of dierentially expressed
genes obtained by the two methods.