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John Holbein

@johnholbein1.bsky.social

Associate Professor of Public Policy, Politics, and Education @UVA. I share social science.

15,694 Followers  |  4,339 Following  |  1,682 Posts  |  Joined: 20.09.2023
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Posts by John Holbein (@johnholbein1.bsky.social)


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Great new paper in The Review of Economic Studies using randomized incentives to detect non-response bias, using administrative data to provide ground truth for comparison. While incentives increased participation, they didn't reliably reduce NR bias

academic.oup.com/restud/advan...

27.02.2026 10:53 β€” πŸ‘ 45    πŸ” 19    πŸ’¬ 1    πŸ“Œ 4
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Redistricting Reforms Reduce Gerrymandering by Constraining Partisan Actors is now forthcoming in the APSR!

We use a game theoretic treatment and continuous DiD(iD) to show when redistricting reforms work

with @corymccartan.com, @simko.bsky.social, Emma Ebowe, Michael Zhao, and Kosuke Imai

25.02.2026 14:15 β€” πŸ‘ 17    πŸ” 9    πŸ’¬ 3    πŸ“Œ 0
Preview
Acquiescence Bias and Criterion Validity: Problems and Potential Solutions for Agree-Disagree Scales - Political Behavior Political Behavior - Scholars frequently measure dispositions like populism, conspiracism, racism, and sexism by asking survey respondents whether they agree or disagree with statements...

New w/@scottclifford.bsky.social.

Lots of work uses agree-disagree scales, and a lit review shows these are 1) frequently just measured in one direction (agree = higher trait) and 2) correlated with each other.

This has potentially big issues for conclusions.

link.springer.com/article/10.1...

25.02.2026 12:38 β€” πŸ‘ 95    πŸ” 47    πŸ’¬ 3    πŸ“Œ 6

if you are still on Twitter/X and get any suscpicious DMs from the person who hacked me, can you let me know?

21.02.2026 19:34 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

If my email was hacked, I wouldn't stop using email.

21.02.2026 17:20 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

My Twitter/X account was hacked.

Like an idiot, I fell for a phishing scam.

Until further notice, anything from that account is not from me.

21.02.2026 17:17 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 3    πŸ“Œ 1
a graph showing how LLMs do or do not p-hack

a graph showing how LLMs do or do not p-hack

While LLMs will try to follow good research practices by default, you can pretty easily convince them to p-hack for you. In one case (out of the 4 tested), the LLM moved the result from p > 0.05 to p < 0.001. github.com/janetmalzahn...

19.02.2026 19:10 β€” πŸ‘ 32    πŸ” 13    πŸ’¬ 1    πŸ“Œ 3

"Do virtual museums highlighting the experiences of minorities persuade visitors? Evidence from a study on bias toward Asian Americans"

14.02.2026 15:35 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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"Do virtual museums highlighting the experiences of minorities persuade visitors? Evidence from a study on bias toward Asian Americans"

This is a work in progress, so feedback is welcome!

papers.ssrn.com/sol3/papers....

13.02.2026 21:26 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

Bottom line: Exposure to historically grounded, perspective-taking content can meaningfully shift what people knowβ€”and, to a lesser extent, what they believeβ€”about Asian Americans.

More to come!

13.02.2026 21:26 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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β€’ Despite its light touch, the exhibit still modestly improved attitudes toward Asian Americans
β€’ Effects are concentrated among Democrats and those low in racial resentment
β€’ There is no evidence of backlash or spillovers in views towards unrelated groups.

13.02.2026 21:26 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 1
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We find that:

β€’ The 20 minute exhibit substantially increased factual knowledge about Chinese American history

13.02.2026 21:25 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

We ran a preregistered experiment testing the effects of attending a virtual Museum of Chinese in America exhibit on Americans’ knowledge and attitudes.

13.02.2026 21:25 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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The exhibit took about 20 mins and covered historical and contemporary information about the hurdles that Asians face and their broader contributions to society.

13.02.2026 21:25 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
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This paper is the first in a series of papers we'll be releasing on this subject.

We partnered with the Museum of Chinese in America to test the effects of attending a virtual museum exhibit that exposed people to the lived experiences and history of the Chinese diaspora in the United States.

13.02.2026 21:23 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Asian Americans have long histories of violence, discrimination, & exclusion.

Much of this behavior is poorly understood. The literature on discrimination against other racial groups is much larger than the literature on anti-Asian animus.

A group of my coauthors and I are trying to fill that gap.

13.02.2026 21:23 β€” πŸ‘ 22    πŸ” 8    πŸ’¬ 1    πŸ“Œ 2
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Some journals are now requesting reviewers affirm that they did not upload manuscripts into AI platforms.

12.02.2026 16:52 β€” πŸ‘ 29    πŸ” 2    πŸ’¬ 3    πŸ“Œ 3

Political science is so broken.

11.02.2026 21:59 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This is infuriating.

11.02.2026 18:18 β€” πŸ‘ 24    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

indeed!

06.02.2026 18:32 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Love the research process; hate the publication process

05.02.2026 16:23 β€” πŸ‘ 49    πŸ” 2    πŸ’¬ 2    πŸ“Œ 0
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How rich is Elon?

I'm closer in net worth to Larry Page than Larry Page is to Elon.

04.02.2026 20:16 β€” πŸ‘ 52    πŸ” 12    πŸ’¬ 5    πŸ“Œ 8

I'm reporting on a paper released.

My personal information is not relevant.

04.02.2026 20:15 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The authors also demonstrate that welfare policies can moderate the increase of cancer-related crime shocks.

"Adequately funded safety net programs may generate benefits beyond their direct recipients by reducing the negative spillovers that health shocks impose on broader society."

04.02.2026 18:48 β€” πŸ‘ 25    πŸ” 4    πŸ’¬ 2    πŸ“Œ 1
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"The hidden social costs of cancer
A Danish study shows that an adverse health shock increases the chances of criminal behavior."

t.co/Uw1axAfrLu

04.02.2026 18:47 β€” πŸ‘ 16    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
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"Breaking Bad: How Health Shocks Prompt Crime"
t.co/mO1U61UXGJ

04.02.2026 18:46 β€” πŸ‘ 34    πŸ” 5    πŸ’¬ 2    πŸ“Œ 3

Why?

The authors provide two reasons:

First, economic strains leads individuals to compensate for their loss of legal revenues with illegal earnings.

Second, cancer patients face lower expected cost of punishment through a lower survival probability.

Wow!

04.02.2026 18:46 β€” πŸ‘ 28    πŸ” 3    πŸ’¬ 2    πŸ“Œ 2

But it doesn't stay down for long.

Two years later, people's involvement in crime increases and stays high.

04.02.2026 18:46 β€” πŸ‘ 17    πŸ” 0    πŸ’¬ 3    πŸ“Œ 0

In the graph, the cancer diagnosis is the vertical dashed grey line. To the left is before the diagnosis; to the right is afterward.

At first, leading up to a cancer diagnosis there's no spike in crime.

When someone is diagnosed with cancer, their crime declines rapidly.

04.02.2026 18:45 β€” πŸ‘ 12    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Look at how being diagnosed with cancer impacts people's involvement in crime!

04.02.2026 18:45 β€” πŸ‘ 119    πŸ” 41    πŸ’¬ 11    πŸ“Œ 28