The False Positive Rate and the Significance Level

The false positive rate is the rate at which these false positives show up in the literature over a large body. The significance level, this was this.05, I guess, in a lot of fields, is that you can think of this as controlling the probability of a type 1 error or of a false positive on any given study. It has to do with what proportion of studies are in the camp of having a true null hypothesis versus a false null hypothesis to begin with.