I had written a hypothesis that we expect x outcome variable to increase when y treatment is applied. A reviewer commented that based off of the hypothesis, we should be doing a one-sided test.
However, this doesn't make sense to me, since it is important to know from the data if x actually decreases when y is applied. Wouldn't doing a one-way hypothesis miss this?
If the written hypothesis must reflect what kind of testing was done, how should it be written to prevent it being boring/uninformative? For example, "We expected x would change when y is applied".