Grounded theory is a qualitative research method that involves analyzing data to develop theories grounded in the data itself. It involves constant comparison between data and emerging categories to refine categories that closely fit the data. The researcher aims to develop a theoretical framework through an inductive process of coding data line-by-line without preconceived hypotheses, allowing categories to emerge from the data. This contrasts with deductive theory testing approaches that develop theories prior to data collection. Grounded theory seeks to develop theories closely tied to empirical data rather than abstract speculation.