In terms of case range, Gary King, Robert Keohane, and Sidney Verba warn versus "selecting on the dependent variable". They argue by way of example that scientists can not make valid causal inferences about war outbreaks by only checking out cases where by war did transpire (the researcher must also https://hire-someone-to-write-my32418.blogpayz.com/33491956/ivey-case-study-writing-service-secrets