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Conversation

ok i get these comments ON THE REGULAR and here is an angry tweet thread about why they are wrong and should feel bad 1. ppl are always like, 'but selection bias tho.' Do you know what selection bias is, how it works, and why it's bad? twitter.com/giovannimattei

This Tweet is unavailable.

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Selection bias is when you get misleading effects or conclusions or whatever due to how you selected the ppl you're asking about. As in, if you're measuring how nice ppl are and then ask ppl to volunteer for your study, you'll only be measuring ppl nice enough to volunteer.

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And to be clear, a lot of those studies you believe and use to shape your view of reality are drawing from pretty narrow samples anyway: college kids tryin to get good grades by participating in studies, or the classic WEIRD demographics.

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My twitter followers are obvs not a representative sample of the population, I am VIVIDLY AWARE OF THIS i am not an idiot. They tend to be male, white, 25-35yo, disproportionately libertarian (and otherwise politically split), living in mostly the US.

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@sallysassmonsta

Replying to

how do you find demographics like this of twitter followers?

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Replying to

@sallysassmonsta

i ask them, ive done semiregular polls over years

5:36 PM · Sep 13, 2021

@sallysassmonsta

Replying to

ah makes sense, i didn't know if twitter had demographics built in to their tweet analytics or something similar to what youtube does

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