Table 1 

Four possible outcomes when testing m hypotheses. 

True State of Nature 
Declared significant 
Declared Not significant 
Total 


Null 
V 
S 
m_{0} 


Alternative 
U 
T 
m_{1} 


Total 
R 
mR 
m 


V is the number of true null hypotheses that are falsely rejected; U is the number of true alternative hypotheses that are correctly rejected; S is the number of true null hypotheses that are correctly not rejected; T is the number of alternative hypotheses that incorrectly not rejected; R is the total number of null hypotheses rejected among the m tests. 

Lin et al. BMC Bioinformatics 2010 11:48 doi:10.1186/147121051148 