Qualitative research aims to understand people's interpretations through exploratory, discovery-based methods like observation and interviews. It emphasizes understanding variables in their natural context and the interactions between them. There are five main approaches: ethnography immerses researchers in an entire culture; field research observes groups in natural settings; phenomenology understands subjective experiences; grounded theory develops theories from observations; and case studies provide in-depth analysis of specific cases. While qualitative research provides rich, comprehensive data, it can be difficult to ensure reliability, prevent bias, and generalize findings.