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Andrew Mercer
@awmercer.bsky.social
Principal methodologist at Pew Research Center. He/him
1.6k followers695 following2.1k posts
Reposted by Andrew Mercer
JBjbakcoleman.bsky.social

This is whole thread a useful framing. So many debates in metascience have parallels in broader discussions about promoting and balancing prosocial behavior, autonomy, efficiency, policing, values etcā€¦

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Reposted by Andrew Mercer
AAannaalexandrova.bsky.social

Been pondering what bothers me abt this reasoning. I think itā€™s the presumption that avoidance of fraud is the first and biggest priority. It is a priority but not the biggest and not the sole. Consider an analogy with welfare state. If avoidance of benefit fraud and inefficient spendingā€¦ 1/2

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AMawmercer.bsky.social

Itā€™s a bit like putting all of the daily essentials like deodorant behind glass at CVS. Congratulations on preventing crime. I also no longer want to shop here.

Shoplifting deterrents deter in-store shopping with items behind locked cabinets
Shoplifting deterrents deter in-store shopping with items behind locked cabinets

Locking up merchandise at stores hasn't curbed retail theft but is driving consumers to shop online.

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AMawmercer.bsky.social

Not that Iā€™m aware of. Thatā€™s also harder to do well than most people realize.

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Reposted by Andrew Mercer
AMawmercer.bsky.social

Look, polls have biases. But slso, the MOE for a subgroup of n=96 is about +/- 10 points. Add in the design effect, itā€™s +/- 13 points. For the vote margin itā€™s +/- 26. For the change in the margin since the last poll, itā€™s about +/- 50 points. Thatā€™s just accounting for random sanpling.

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AMawmercer.bsky.social

And critically, those questions arenā€™t answerable until after the election.

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AMawmercer.bsky.social

Absolutely worth investigating. But also requires comparing not specific pollsters but polling methodologies. Getting a serious answer to these kinds of questions is both a) important and b) much more difficult than most people realize.

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AMawmercer.bsky.social

I think it really depends a lot on which polls/pollsters you are comparing it to. A lack of variability in some subgroups could likewise be indicative of a problem (e.g. using a method that has low variance but high bias).

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AMawmercer.bsky.social

I think itā€™s fair to criticize reporters who report something that is not actually statistically supported by the underlying data (idk if thatā€™s the case in the poll you linked). But Iā€™d encourage people to avoid armchair meta-analysis.

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AM
Andrew Mercer
@awmercer.bsky.social
Principal methodologist at Pew Research Center. He/him
1.6k followers695 following2.1k posts