#selectionbias
LightNews LightNews
paperposterbot.bsky.social
arXiv📈🤖
SelectionBias: An R Package for Bounding Selection Bias in Causal Estimands
By Zetterstrom, Waernbaum
Selection bias may arise when there are dropouts or missing data in the analysis, or when subjects are included or excluded in the analysis based upon some selection criteria for the study population. Selection bias can jeopardize the validity of the study and a sensitivity analysis for assessing the effect of the selection is desired. Recently, there has been a surge of results for selection bias in causal inference, with several suggestions for sensitivity analyses. One method is to construct bounds for the bias. Here, we present the R package SelectionBias that can be used to calculate previously proposed bounds for selection bias for the causal risk ratio and causal risk difference for both the total and the selected populations. The first bound, derived by Smith and VanderWeele (SV), is based on values of sensitivity parameters that describe parts of the joint distribution of the outcome, treatment, selection indicator and unobserved variables. The second bound is an improved sharp bound that uses the same sensitivity parameters as the SV bound. The third bound is based solely on the observed data, and is therefore referred to as the assumption-free (AF) bound. The fourth and fifth bounds, the generalized assumption-free (GAF) and counterfactual assumption-free (CAF) bounds, utilize both the data and sensitivity parameters. The R package is illustrated with a simulated dataset that emulates a study where the effect of the zika virus on microcephaly in Brazil is investigated. Lastly, its performance and features are compared to the already existing R package EValue, highlighting situations where the two packages provide distinct advantages over each other.
September 28, 2026 at 8:05 AM
microglyphics.bsky.social
Companies are hiring philosophers, and that's a good thing, right?

brywillis634737.substack.com/p/the-philos...

#ai #ethics #philosophy #aiethics #governance #utilitarianism #selectionbias #technology #criticism #moralphilosophy #power #institutions #hiring #perspectives #blog #substack #podcast
The Philosophers Are Here. Which Philosophers?
AI companies are hiring ethicists. This is apparently meant to make us feel better.
brywillis634737.substack.com
August 11, 2026 at 4:38 PM
microglyphics.mastodon.social.ap.brid.gy
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 […]
Original post on mastodon.social
mastodon.social
August 11, 2026 at 4:39 PM
ninomaetsukumo.bsky.social
Fuchu Prison: ~25% foreign inmates.
Japan-wide 2024 new prison admissions: 851/14,822 = 5.74%.

Both can be true. They measure different things.

One prison is not the country.
一つの刑務所が、日本全体ではない。

#Japan #SelectionBias
August 10, 2026 at 10:48 AM
vishalkrastogi.bsky.social
Who's missing from your sample can matter as much as who's included. Selection bias is a hidden threat to evidence quality. Learn how to detect and mitigate selection bias before it compromises decisions.

open.substack.com/pub/vishalkr...

#PrimaryMarketResearch #ResearchBias #SelectionBias
Seeing clearly: Detecting and mitigating selection bias
Strategies to address selection bias.
open.substack.com
July 21, 2026 at 10:48 AM
purescience.news
Are the benefits of psychedelics exaggerated? A new study highlights the problem of selection bias #Science #HealthandMedicine #MentalHealth #Psychedelics #SelectionBias

https://www.psypost.org/are-the-benefits-of-psychedelics-exaggerated-a-new-study-highlights-the-problem-of-selection-bias/
Are the benefits of psychedelics exaggerated? A new study highlights the problem of selection bias
A new study suggests that the widely reported life-changing benefits of psychedelics might be somewhat exaggerated. Researchers found that studies relying on "enthusiast" communities report significantly higher quality-of-life improvements compared to studies using a general population sample.
www.psypost.org
May 12, 2026 at 2:44 PM
jayhay.bsky.social
Wenn du konstant Tempo 100 fährst, begegnest du garantiert 0 anderen Autos, die ebenfalls konstant 100 fahren. 💁‍♂️

#selectionbias
April 3, 2026 at 9:49 AM
deepvard.bsky.social
🇺🇸ICE is🇺🇸ICE

🇺🇸JimKKKrow is🇺🇸JimKKKrow

SS template = JimKKKrow’s🇺🇸KKKonstitution’s2️⃣A militias

🇺🇸WhiteEuropeanAmeriKKKanMale$upremacy is🇺🇸WhiteEuropeanAmeriKKKanMale$upremacy

Please do NOT SaneWash🇺🇸MAGA’s heritage x4️⃣0️⃣0️⃣years🤦🏻

#SelectionBias

#TedTalkEndeth🫡
March 22, 2026 at 4:40 PM
deepvard.bsky.social
FICTIONALIZED entertainment of8️⃣0️⃣year old fascist events via Hollywood🤷🏻‍♂️

Nazi German template was JimKKKrow

🇺🇸KKKontinues to fund Gaza genocide during last4️⃣years & domestiKKK ICE fascism x1️⃣4️⃣months & Iran genocide startup🤬

Nazi unnecessary

SaneWash good ol’🇺🇸reality⁉️

#SelectionBias🤦🏻

#TedTalkEndeth🫡
March 22, 2026 at 3:22 PM
deepvard.bsky.social
Will🇺🇸RENAME everything that has racist profiteering enslaver’s GW POTUS1️⃣’s name “too” including DC &💰1️⃣⁉️⁉️⁉️⁉️⁉️

… or is🇺🇸’s racism DNA ok⁉️🤬

Humbly asking on behalf of ALL POC

#SelectionBias🫡

en.wikipedia.org/wiki/The_161...
The 1619 Project - Wikipedia
en.wikipedia.org
March 18, 2026 at 9:08 PM
deepvard.bsky.social
GW POTUS1️⃣’s “great man historical status” remains valid⁉️

… or is🇺🇸’s racism DNA ok⁉️🤬

Humbly asking on behalf of ALL POC

#SelectionBias🫡

en.wikipedia.org/wiki/The_161...
The 1619 Project - Wikipedia
en.wikipedia.org
March 18, 2026 at 7:13 PM
deepvard.bsky.social
“When you think you're a liberator of your people and you're also” enslaving and profiteering “among those people you're demonstrating that you have trouble recognizing them as people”

GW POTUS1️⃣🇺🇸’s racism DNA ok⁉️
Humbly asking on behalf of ALL POC
#SelectionBias🫡

en.wikipedia.org/wiki/The_161...
The 1619 Project - Wikipedia
en.wikipedia.org
March 18, 2026 at 7:05 PM
deepvard.bsky.social
Profiteering enslaver GW POTUS1️⃣ still apparently ok⁉️

… or is🇺🇸’s racism DNA ok⁉️🤬

Humbly asking in behalf of ALL POC

#SelectionBias🫡

en.wikipedia.org/wiki/The_161...
The 1619 Project - Wikipedia
en.wikipedia.org
March 18, 2026 at 6:51 PM
deepvard.bsky.social
Done with POTUS1️⃣too⁉️⁉️⁉️⁉️⁉️

“Fuck that guy” too⁉️⁉️⁉️⁉️⁉️

… or is🇺🇸’s racism DNA ok🤬

Humbly asking in behalf of ALL POC

#SelectionBias🫡

en.wikipedia.org/wiki/The_161...
The 1619 Project - Wikipedia
en.wikipedia.org
March 18, 2026 at 6:49 PM
deepvard.bsky.social
Can🇺🇸RENAME everything that has profiteering enslavers GW POTUS1️⃣’s name “too” including DC &💰1️⃣⁉️⁉️⁉️⁉️⁉️

… or is🇺🇸’s racism DNA ok🤬

Humbly asking in behalf of ALL POC

#SelectionBias🫡

en.wikipedia.org/wiki/The_161...
The 1619 Project - Wikipedia
en.wikipedia.org
March 18, 2026 at 6:47 PM
mzloteanu.bsky.social
#statstab #505 Beyond Confounders

Thoughts: What makes a good control and a bad control?

#counterfactuals #confounder #DAG #r #modelling #selectionbias #variance #control #causalinference

matheusfacure.github.io/python-causa...
07 - Beyond Confounders — Causal Inference for the Brave and True
matheusfacure.github.io
March 13, 2026 at 3:44 PM
yacc143.mastodon.social.ap.brid.gy
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 […]
Original post on mastodon.social
mastodon.social
March 1, 2026 at 11:47 AM
longevitytech.bsky.social
Alexey Strygin on billionaire mortality, selection bias and what the funding gap reveals about aging research.

vist.ly/4t6m9

#longevity #agingresearch #billionairies #mortality #sciencefunding #selectionbias #healthspan #geroscience
February 27, 2026 at 6:07 PM
gravinpetra.bsky.social
Even: krijg je niet een beetje selectionbias als je alleen op Bluesky in je bubble recruiteert #wetenschap 😬
December 23, 2025 at 9:10 PM
atheendar.bsky.social
🧵 Great post on #selectionbias + #Mississippi Education Miracle:
tinyurl.com/mr7964fy

⬆️ in test scores = artefact of holding back children who scored poorly.

A tip-off is how *linear* the growth in test scores was.

The same linearity led us to suspect similar bias in a critique of our paper.
December 5, 2025 at 4:38 PM
vishalkrastogi.bsky.social
Selection bias occurs when study participants aren’t selected at random, leading to results that don’t accurately reflect the larger population. Learn what selection bias is and practical ways to spot and reduce it.

medium.com/@vishalkrast...

#PrimaryResearch #ResearchBias #SelectionBias
Seeing clearly: Detecting and mitigating selection bias
Strategies for addressing selection bias.
medium.com
October 24, 2025 at 1:58 PM
cranupdates.bsky.social
Updates on CRAN: altmeta (4.3), SelectionBias (2.1.0), wdnr.gis (0.1.6)
October 13, 2025 at 9:18 PM
cranberriesfeed.bsky.social
CRAN updates: SelectionBias wdnr.gis #rstats
October 13, 2025 at 7:02 PM