With regard to case range, Gary King, Robert Keohane, and Sidney Verba warn from "picking out to the dependent variable". They argue by way of example that researchers can't make valid causal inferences about war outbreaks by only taking a look at occasions where war did come about (the researcher https://paysomeonetowritemycasest11868.goabroadblog.com/31370499/everything-about-case-help