In qualitative study, these two could be the basis of the research result. Because it's qualitative..., which means the research might be too subjective.
For validation, eight strategies are mentioned on the book.
- prolonged engagementand persistent observation
- triangulation (corroborating evidence from different sources)
- peer review or debriefing (devil's advocate - 고의적인 반문: 논문 디펜스처럼..?)
- negative case analysis
- clarifying researcher bias from the outset of the study
- member checking
- rich and thick description
- external audits
especially, triangulation and peer review or member checking are easily conducted and time and cost effective procedures..
Also intercorder agreement is needed to get reliability.
Finally, criteria for case study...
I chose below as several priority checklist...
- does the report have a conceptual structure?
- is the case adequately defined?
- is the reader provided some vicarious experience?
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