In qualitative research, which method enhances the credibility of findings by combining participant observation with other data sources?

In qualitative research, the method that enhances the credibility of findings by combining participant observation with other data sources is called triangulation. This approach involves gathering information from different places or using various methods to get a fuller picture of the topic being studied. For example, if a researcher is studying a community's response to a new park, they might observe people in the park, conduct interviews with local residents, and analyze social media posts about the park. By using these different sources of data, the researcher can compare and confirm findings, making the overall conclusions more reliable. Triangulation helps to reduce bias and provides a more comprehensive understanding of the research subject.