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Manual Event (Session ID,DateTime,Event) = e61gq9rk89ojve3l4hh1dvpr0o 20240226030259 /sc/communities/what-are-some-cautionary-tales-with-nonprobability-samples/

What are some cautionary tales with nonprobability samples?

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mani poon
2020年6月24日
What are some cautionary tales with nonprobability samples?

What are some cautionary tales with nonprobability samples?

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Kevin Lee
2020年6月24日

Welcome!! =D

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mani poon
2020年6月24日

Thank you. I can imagine if I offer a new, experimental intervention for a certain problem, and I advertise in the newspaper for volunteers, those who contact me are likely to be more severely affected by the problem and/or those who are highly motivated. There is a certain selection bias.

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Kevin Lee
2020年6月24日

Selection bias:
-They might be the staff’s favorites (successful clients)
-They might be the more difficult clients who threatened suicide every holiday

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