Critiques
In a criticism of Pape's link between occupation and suicide terrorism, an article titled "Design, Inference, and the Strategic Logic of Suicide Terrorism" (published in The American Political Science Review), authors Scott Ashworth, Joshua D. Clinton, Adam Meirowitz, and Kristopher W. Ramsay from Princeton charge Pape with "sampling on the dependent variable" by limiting research only to cases in which suicide terror was used. In response, Pape argues that his research design is sufficient because it collected the universe of known cases of suicide terrorism. In a rejoinder, Ashworth et al. discuss how even large samples of the dependent variable cannot be used to explain variation in outcomes, why suicide terrorism in some places but not others, if the sample does not vary.
Read more about this topic: Dying To Win: The Strategic Logic Of Suicide Terrorism