Qualitative research involves collecting and analyzing non-numerical data such as text, video, or audio to understand concepts, opinions, or experiences. It is commonly used in fields like anthropology, sociology, education, and health sciences. Some key characteristics of qualitative research methods include collecting data in natural settings, using multiple data sources like interviews and observations, and producing meaningful inferences. Common qualitative research approaches include in-depth interviews, focus groups, narrative research, phenomenology, ethnography, case studies, content analysis, grounded theory, and record keeping. The process of qualitative data analysis generally involves preparing, organizing, reviewing, coding, and identifying themes in the data.