How many interviews do I need?
There is no fixed number, and any source giving you one without asking about your question, your population and your method is guessing. What matters is whether you can argue your sample was adequate for what you claimed to find. We help you build that argument from your own data rather than from a rule of thumb.
This comes up on Qualitative Data Analysis Support, where it is answered in the context of the work itself.
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Send the draft, the rubric or the score report with it. You get a real answer and a price before you commit to anything.