To understand the limitations of discrete regime type data for studying authoritarianism, I scrutinize three regime type data sets provided by Cheibub, Gandhi, and Vreeland, Hadenius and Teorell, and Geddes. The political narratives of Nicaragua, Colombia, and Brazil show that the different data sets on regime type lend themselves to concept stretching and misuse, which threatens measurement validity. In an extension of Fjelde’s analysis of civil conflict onset, I demonstrate that interchangeably using the data sets leads to divergent predictions, it is sensitive to outliers, and the data ignore certain institutions. The critique expounds on special issues with discrete data on regime type so that scholars make more informed choices and are better able to compare results. The mixed-methods assessment of discrete data on regime type demonstrates the importance of proper concept formation in theory testing. Maximizing the impact of such data requires the scholar to make more theoretically informed choices.