Research methodology is crucial for dissertation writing as it provides a structured approach to investigating a research question. It ensures the reliability and validity of results by outlining the methods for data collection, analysis, and interpretation. A robust methodology helps in systematically addressing the research objectives, offering clarity and consistency. It also enables other researchers to replicate the study, enhancing its credibility. Ultimately, a well-defined research methodology underpins the dissertation's overall quality, contributing significantly to the advancement of knowledge in the field.