Simple question: can you have a one-tailed and a two-tailed hypothesis in the same study. I am running 2 2way ANOVAs and one of them (extant literature is mixed) is just exploring whether there any difference either way (two tailed) and the other I am certain will be different in a certain direction (one-tailed). Is this okay to do? Does that makes sense or am I talking rubbish?
Thankyouu
Thankyouu