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Erm, no, self-selection bias never disappears or even attenuates with sample size, the best you can hope for is to reweight the sample according to known demogr
by stdbrouw 5y ago
Erm, no, self-selection bias never disappears or even attenuates with sample size, the best you can hope for is to reweight the sample according to known demographics of your target population, which does indeed get a bit easier with larger samples.
- disgruntledphd2 5y ago> Erm, no, self-selection bias never disappears or even attenuates with sample size, the best you can hope for is to reweight the sample according to known demographics of your target population, Which, to be fair, is literally Neilsen's entire product (for TV at least). I mean, I guess that everyone here understands selection bias at a deep level, but to think that people who sell representative data to big corporations (and have done for longer than many of us have been alive) don't have a similar level of understanding is just weird.
- dragonwriter 5y ago> the best you can hope for is to reweight the sample according to known demographics of your target population, which does indeed get a bit easier with larger samples. That doesn't actually deal with self-selection bias if self-selection correlates with the feature of interest within the demographic groups, which is probably the normal case.