This chapter emphasizes two different approaches to mixed methods research. The transformative mixed methods approach creates new social justice–oriented research by employing qualitative and quantitative methods within a single phase, sequential phases, or concurrently. The multiphase mixed methods tradition is specifically designed for large-scale investigations that employ separate and equally emphasized qualitative and quantitative methodological frameworks. The order of data collection and analysis can either be sequential or concurrent, and each phase builds on the previous thread culminating in a fuller understanding of the overall project objectives. The chapter comprehends the philosophical integration of transformative and multiphase research design. It recognizes how to maximize the rigor of transformative and multiphase design. The chapter defines the data analysis process for transformative and multiphase designs and explains how mixed methods traditions can enhance multicultural competency.