Jurisprudential Regimes and Supreme Court Decisionmaking: The Lemon Regime and Establishment Clause Cases

In this research note, we apply the construct of jurisprudential regimes as described in our recent article in American Political Science Review to the area of Establishment Clause jurisprudence. We hypothesize that Lemon v. Kurizman represented a jurisprudential regime in the Supreme Court's decisionmaking in this area of law. Our analysis shows that the predictors of the Court's decisions in the two periods differed in ways that are very consistent with the types of changes one would expect the hypothesized regime shift to produce.