Concerning case range, Gary King, Robert Keohane, and Sidney Verba warn from "selecting on the dependent variable". They argue as an example that scientists cannot make valid causal inferences about war outbreaks by only considering cases where war did happen (the researcher should also look at cases the place war https://trentonksrcs.bloggerchest.com/32810077/case-study-writing-help-things-to-know-before-you-buy