Mixed methods research involves collecting and analyzing both quantitative and qualitative data within a single study. It allows researchers to capitalize on the strengths of both approaches to understand complex phenomena. There are several strategies for mixed methods research, including sequential explanatory, concurrent triangulation, and concurrent transformative designs. Sequential explanatory design involves first collecting and analyzing quantitative data followed by qualitative data to help explain the quantitative results. Concurrent triangulation uses both methods concurrently to confirm findings, while concurrent transformative evaluates theoretical perspectives at different levels of analysis. Critics argue that quantitative and qualitative methods have different epistemological commitments and paradigms.