#selectionbias — Public Fediverse posts

Companies are hiring philosophers, and that's a good thing, right?

https://brywillis634737.substack.com/p/the-philosophers-are-here-which-philosophers

#ai #ethics #philosophy #aiethics #governance #utilitarianism #selectionbias #technology #criticism #moralphilosophy #analyticalphilosophy #power #institutions #hiring #employment #perspectives #blog #substack #podcast

https://www.jpost.com/middle-east/iran-news/article-887917

Classic example of #badjournalism #journalism

#selectionbias + #multitestingbias + #aihype

One would assume that journalists nowadays are still educated individuals and that they get a basic #statistics class, as part of their professional education.

Sure, come back to us when #grok predicts the lottery numbers reliably for 3 months; we are all interested in THAT prompt.

You have a workshop about how to deal with a specific problem. Why would you be surprised if most people in the audience have experienced the problem before? #SelectionBias

@destatis bei der Statistik zweifel ich mindestens so lange, bis ich eine Übersicht zum Alter der Umfragenteilnehmer gesehen habe und ausschließen kann dass hier MASSIVER #selectionBias vorliegt

so… wir haben "Haushalte" postalisch befragt und Rentner haben 90% der Antwortbriefe verfasst

@bmi 95% der Bürger die die Umfrage zum Warntag ausgefüllt haben?

Leute die den Warntag nicht mitbekommen haben, haben sicher die Umfrage auch nicht gesehen.

#selectionBias ick hör dir trappsen!

How can advocacy for a search engine monopoly be reduced (by practical editorial changes) in the English-language #Wikipedia?

This is a fundamental meta-academic question (reviews of knowledge) for which practical participation - with evidence and arguments - would be better than postmodernist gobbledegook or neoliberal empty rhetoric.

@academicchatter

https://en.wikipedia.org/wiki/Wikipedia:Village_pump_%28proposals%29#RfC_to_reduce_WP:ADVOCACY_in_Module:Find_sources/templates/Find_sources

#Monopolies #SearchEngines #SelectionBias #OpenScience

Yes, it's lovely to see the Tories getting their arses handed to them on a plate in #Tamworth and #MidBedfordshire, but let's not get too carried away. You can't easily extrapolate from by-elections with low turnouts to what might happen in a general election. No time for complacency.

#SelectionBias

https://www.bbc.co.uk/news/live/uk-politics-67126173

Tell us you don't know how to do #math without saying it.

#FakeNews

In an amusing twist of #SelectionBias, the death rates were 11% lower than even pre #COVID normal life expectancy for vaccinated people. Probably because people who take #vaccines tend to be more informed about #health #risk.

The #death rate for unvaccinated people was 93% higher than the pre-COVID ones. The risk profile of people who don't have the skills to "do their own #research" is frankly #insane.

More in comments:

@c_ozwei Ich habe in den vergangenen Monaten einige Entscheidungsträger·innen auf lokaler Ebene getroffen, Bürgermeister, Bzeirksvorsteher, Verwaltung, ... Und ich habe immer den Eindruck gehabt, dass das Verständnis für die #Klimakrise vorhanden ist.

Aber es ist mir bewußt, daß es einen starken (beidseitigen) #SelectionBias gibt, wer sich mit mir auf ein Gespräch übers #Klima zusammensetzen möchte...

New Portuguese-Language pages created on #RationalWiki in July:
#Português #Portuguese

Apelo à fé #appealtofaith #logicalfallacy #FaláciaLógica
https://rationalwiki.org/wiki/Apelo_%C3%A0_f%C3%A9

#TDK (acrônimo para Tirei Do Ku) #PIDOOMA
https://rationalwiki.org/wiki/TDK

Viés de sobrevivência #survivorshipbias
https://rationalwiki.org/wiki/Vi%C3%A9s_de_sobreviv%C3%AAncia

Viés de seleção #selectionbias
https://rationalwiki.org/wiki/Vi%C3%A9s_de_sele%C3%A7%C3%A3o

Evidência suprimida #cherrypicking
https://rationalwiki.org/wiki/Evid%C3%AAncia_suprimida

Falácia do holofote #spotlightfallacy
https://rationalwiki.org/wiki/Fal%C3%A1cia_do_holofote

Teoria da cegueira deliberada #willfulignorance #denialism
https://rationalwiki.org/wiki/Teoria_da_cegueira_deliberada

Post hoc, ergo propter hoc #posthocergopropterhoc
https://rationalwiki.org/wiki/Post_hoc,_ergo_propter_hoc_(portugu%C3%AAs)

Superstição #Superstition
https://rationalwiki.org/wiki/Supersti%C3%A7%C3%A3o

Apofenia #Apophenia
https://rationalwiki.org/wiki/Apofenia

3/
Also, we wrote a non-technical introduction to #selectionbias due to conditioning on a #collider
https://bmj.com/content/381/bmj.p1135

As Jonathan Sterne and colleagues say, if you understand “Among successful actors, being physically attractive is inversely related to being a good actor”, you understand collider bias.
https://www.nature.com/articles/s41467-020-19478-2

2/
We described this bias with simulations + real data.

We show that a vaccine booster will be associated with higher reinfection even if the booster has no harmful effect.
https://www.bmj.com/content/381/bmj-2022-074404.full

The good news: Preventing this self-inflicted #selectionbias is easy: Specify the #TargetTrial that the observational analysis tries to emulate.

Here the (unethical) target trial requires forced infection, so observational analyses will be biased unless they adjust for susceptibility to infection.

1/
One day everyone will recognize #selectionbias due to a #collider and the world will be a better place.

This time observational studies found a higher risk of omicron reinfection after a 3rd dose of #COVID19 vaccine. Alarms went off.

The obvious bias: Those who receive a booster and get infected are, on average, more susceptible to infection than those who don't get a booster and get infected.

No surprise that those who receive a booster and get infected are more likely to be reinfected

Delighted to share a #CFP in Preventive Medicine Reports on #SelectionBias as a #CausalInference problem: Manifestations, detection and correction #EpiVerse https://www.sciencedirect.com/journal/preventive-medicine-reports/about/call-for-papers#selection-bias-as-a-causal-inference-problem-manifestations-detection-and-correction

One of my favourite #XKCD panels:

https://xkcd.com/2618/

#SelectionBias

@der_raDDler oh! 😱 Das ist ja wie hier bei den viel zu lauten Fahrradstraßengegnern, bei deren Umfrage sich letztendlich nur rd. 10 % dagegen, d. h. im Klartext für die Beibehaltung der Autoparkplätze ausgesprochen haben. Die anderen haben bspw. den Fragebogen gar nicht zurückgeschickt.

Ist ein großes Problem.
#FalseBalance bzw. #Stichprobenverzerrung aka #SelectionBias (soweit ich das richtig verstehe).

But to be clear: I am not against clever puns in the titles. I simply believe that people who poke at #editors complaining about humorous titles don't understand that this is #SelectionBias at work. The titles you see published are those that survived editorial work. if you could see all titles the editors see, you'd understand how bad sense of humour of many researchers is, and that giving you paper a silly title is a form of intellectual torture.

@gbhnews good example of #SelectionBias

@ct_bergstrom As a former teacher who constantly had to explain to students why sourcing _only_ Wikipedia was never good enough, I do wonder about the conversations we're going to need to start having around "even if you got 5000 responses, your Mastodon survey is not an unbiased representative sample". #SelectionBias #Research

Interested in selection mechanisms/bias and their representation as DAGs (directed acyclic graphs)?

I can wholeheartedly recommend this article from Louisa Smith entitled "Selection Mechanisms and Their Consequences: Understanding and Addressing Selection Bias"

https://www.louisahsmith.com/publications/selection-mechanisms-and-their-consequences-understanding-and-addressing-selection-bias/selection-mechanisms-and-their-consequences-understanding-and-addressing-selection-bias.pdf

#EpiVerse #Epidemiology #CausalInference #SelectionBias #datascience

#xkcd: #SelectionBias

https://xkcd.com/2618/