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Eskanasi t1_irywxmd wrote

what sample size do you need before its big enough to be statistically significant in this context of surveys?

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OrganicDroid t1_irz2tmn wrote

Open to other thoughts, but generally it doesn’t matter. Obviously, more is better if taken from a diverse pool - but when the sample is more concentrated to one university, it’s hard to see much validity no matter how many you have.

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Strazdas1 t1_is0f8qz wrote

For a system with 175 million users, assuming you somehow can get the survey of of a good distribution (not just students in US) you start at 2000-3000 datapoints and go up if you want above 95% confidence.

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