What are the ethical considerations that must be made when carrying out qualitative research?

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In general, what are the ethical considerations that must be made when carrying out qualitative research? Is that any different from quantitative research? Explain.

Define triangulation.  Give two examples of how it works.

Why is triangulation important in qualitative research?  How does it affect the credibility of the study?

Explain what is meant by reflexivity and why it is an important part of qualitative research.