When it comes to case assortment, Gary King, Robert Keohane, and Sidney Verba warn against "choosing around the dependent variable". They argue one example is that scientists can't make valid causal inferences about war outbreaks by only looking at occasions wherever war did happen (the researcher must also examine cases https://judahkrhpe.blogpixi.com/30202520/a-review-of-hbs-case-study-help