Which of the following is a characteristic of qualitative research?

Qualitative research is characterized by its focus on exploring and understanding human behavior, thoughts, and experiences through non-numerical data. The use of open-ended questions or exploratory interviews allows researchers to gather rich, detailed information that can reveal the nuances of participants' perspectives. This approach enables researchers to capture the complexity of social phenomena and the context surrounding them, making it possible to explore subjects in depth rather than simply measuring variables.

This method stands in stark contrast to quantitative research, which relies on numerical data and often employs closed-ended survey questions that limit responses to predefined options. Qualitative research does not prioritize large sample sizes; rather, it often involves smaller, more focused groups that allow for in-depth analysis. Thus, the characteristic of involving open-ended questions and exploratory interviews is what distinctly defines qualitative research.