Adaptive Case Study-Mixed Methods Design Practices for Researchers Studying Complex Phenomena

The methodological purpose of this article is to generate practical guidance for researchers studying complex phenomena through an adaptive case study-mixed methods (CS-MM) design. We describe CS-MM design adjustments made in response to our rapidly changeable research conditions that make complex phenomena challenging to study. We leverage Guetterman & Fetters' (2018) CS-MM design recommendations while discussing specific adaptive design practice areas and advancing new insights gleaned from an expanded 21-month timeline when compared with a previous 4-month CS-MM study. We draw upon Mike Fetters' extensive scholarly contributions while striving to continue his legacy for a better world and embodying Mike's "kind mentoring" approach in our team-based study of the complex phenomena involving the response to a public health emergency.