The most deviant case with the largest absolute
residual of all cases.
Details
Proposed by Seawright, Jason and John Gerring (2008):
Case Selection Techniques in Case Study Research: A Menu of
Qualitative and Quantitative Options. Political Research Quarterly
61 (2): 294-308.
(https://journals.sagepub.com/doi/pdf/10.1177/1065912907313077)