Random sampling > voluntary response sampling (although I don't know why this would be more important when surveying young adults).
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Reposted from
Conrad Hackett
If you encounter what seems like an implausible survey finding, ask:
1. Were survey respondents selected randomly or was this an opt-in poll?
2. Could the results, especially for young adults, be driven by bogus respondents?
Keep this post in mind: www.pewresearch.org/short-reads/...
1. Were survey respondents selected randomly or was this an opt-in poll?
2. Could the results, especially for young adults, be driven by bogus respondents?
Keep this post in mind: www.pewresearch.org/short-reads/...
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