定性研究
Qualitative researchers use different sources of data to understand the topic they are studying. These data sources include in-depth interviews, focus groups, standardized interviews, and artifacts such as books or works of art. The case study method exemplifies qualitative researchers' preference for depth, detail, and context. Data triangulation is also a strategy used in qualitative research. Autoethnography, the study of self, is a qualitative research method in which the researcher uses his or her personal experience to understand an issue.