Studying an Audience Over Time
Using research to track how things may be changing with your audience over time can be very valuable, but there are some things you should watch for to make sure your data is representative and helpful.
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How Many Respondents Do I Need?
If you want your research to be statistically reliable — meaning that you can depend on it to accurately represent a particular audience, guide your strategic direction, etc. — you need to have a certain number of respondents. So the simple answer to this question is 400. But of course, that’s not the only…
