… veer very far from it in generating our upper and lower limits. As a result, our CI is too narrow. A helpful technique to avoid this is the “absurdity test,” a sort of *reductio ad absurdum*. The idea is to start with a CI that’s absurdly wide. If the question is, “When did Steinbeck write *East of Eden*?” an absurdly wide CI would be 1018 to 2018. (Example from Doyle, 2009.) Now, what are two pros and two cons for this range? (Willis, 2013) List them, tweak the range, and do another equivalence bet test. You should also “interrogate” each CI limit. With a 90% CI, notice you are claiming there is a 5% chance your lower limit is greater than the ri…