John Holbein
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johnholbein1.bsky.social
John Holbein
@johnholbein1.bsky.social

Associate Professor of Public Policy, Politics, and Education @UVA.

I share social science.

Political science 58%
Sociology 13%
Pinned
Did you know that your siblings can influence whether you vote?

Well, because of our new working paper you do!

@mike-bloem.bsky.social, @jonisaacsmith.bsky.social, sam imlay

it's depressing

"We find that minimum wages substantially reduce intergroup wage inequality at least up to the 20th wage percentile, with no evidence of adverse employment effects."

[sentimental dad post]: I was thinking today about how amazing it is that young kids can love and forgive others almost intuitively.

Reposted by Bruce D. Baker

Billionaires bankrolling data fraud (of Gino) on Twitter.

It's not accurate to say that the p-value doesn't show significance.

bsky.app/profile/john...
I linked the paper lower in the thread.

Also, this isn't quite accurate.

p < 0.05 in the pooled treatment.

p = 0.066 that you reference is for the difference between restricted and unrestricted.

p < 0.01 for unrestricted treatment itself.

I linked the paper lower in the thread.

Also, this isn't quite accurate.

p < 0.05 in the pooled treatment.

p = 0.066 that you reference is for the difference between restricted and unrestricted.

p < 0.01 for unrestricted treatment itself.

I linked the paper lower in the thread.

Also, this isn't quite accurate.

p < 0.05 in the pooled treatment.

p = 0.066 that you reference is for the difference between restricted and unrestricted.

p < 0.01 for unrestricted treatment itself.

"AI Tutoring Enhances Student Learning Without Crowding Out Reading Effort"

www.iza.org/publications...
AI Tutoring Enhances Student Learning Without Crowding Out Reading Effort
We study how AI tutoring affects learning in higher education through a randomized experiment with 334 university students preparing for an incentiviz...
www.iza.org

"AI tutoring functions less as a substitute ... and more as a scaffold that supports comprehension when students experience difficulty."

The researchers found that unrestricted access to the AI tutor significantly outperforms restricted access noticeably.

This contradicts concerns about students overly relying on AI tutors.

Restricted access did not produce a statistically significant impact over studying without AI.

Three treatment conditions:

1. Restricted-access: access to the AI tutoring system after 10 mins of study.

2. Unrestricted-access: continuous AI tutor support.

3. Control: students study unaided.

All students then completed the same incentivized test without access to the textbook or AI tutor.

"Giving students unrestricted access to AI tutors while they are studying harms their later performance on exams when they don't have AI assistance."

Maybe not!

In this new experiment, students studied economics textbook material during a 25-minute session to prepare for a subsequent test. 1/n