In terms of case selection, Gary King, Robert Keohane, and Sidney Verba alert in opposition to "picking out within the dependent variable". They argue as an example that researchers can't make valid causal inferences about war outbreaks by only checking out instances where war did take place (the researcher also https://pay-someone-to-write-my-c39084.qowap.com/91491182/top-latest-five-case-study-analysis-urban-news