Posts tagged 2018TOP
Understanding False Discovery Rate

FDR is a very simple concept. It is the number of false discoveries in an experiment divided by total number of discoveries in that experiment. But there is a problem, you never know how many discoveries are actually real or false when you accepted them. So how do you estimate FDR from your data?

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Understanding Family-Wise Error Rate

Family-Wise Error Rate (FWER) is an approach for multiple testing correction. It is a scary sounding term, but don’t be deterred. It’s simply the probability that one or more of your “family” of multiple tests is false. In my view, FDR is generally more aligned with what you want as an experimenter. But FWER offers an alternative, generally more stringent, approach to reduce your false findings.  

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