For this article the FPR would be saying that the treatment is that oral steroids are more effective when they were not. This comes from the fact that IV steroids are the normal treatment, they are the standard and obviously work, oral steroids are what’s being tested, what you want to see being more effective or less. So a false positive in this situation would be saying they are better when they aren’t. That’s the risk with rejecting the null and accepting the alternative, and since the null was rejected we know that the p-value is less than alpha, which we assume to be