This chapter discusses the dissertation's qualitative methodology selection criteria. To understand complex human and social events, qualitative research emphasizes participants' views to generate rich, detailed insights. This chapter discusses ethnography, phenomenology, grounded theory, and narrative analysis, each suitable for different study contexts. Discussing research questions, methods, theoretical frameworks, and practical restrictions. The chapter also discusses ethical issues that protect research integrity, including informed consent and confidentiality. This study evaluates purposive, snowball, and theoretical sampling for data collection. Details on interviews, focus groups, and participant observation emphasize their function in acquiring complex data. The chapter concludes with thematic, grounded theory, and narrative analysis, which is essential for qualitative data interpretation. The chapter provides a detailed summary of these factors to help dissertation scholars make informed methodological choices for rigorous, ethical, and meaningful research.