Seo-young Silvia Kim's Avatar

Seo-young Silvia Kim

@sysilviakim

Assistant Professor, Seoul National University. Caltech PhD, formerly at American University and Sogang. Election (admin)/money in politics/css + methods. https://sysilviakim.com/

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04.08.2023
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Latest posts by Seo-young Silvia Kim @sysilviakim

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New year, new forthcoming book announcement! Very excited to post more about it soon! Link: www.cambridge.org/us/universit...

02.01.2026 14:54 πŸ‘ 17 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0

1. Downgraded from Claude Max to Pro. My mental health has significantly improved. Less feeling like I'm being chased all the time (was whipping myself for higher productivity)

2. Claude>>Codex for me so far

3. Still haven't figured out how best to raise the next academic generation in this era

03.03.2026 20:36 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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🚨 Interested in survey experiments? I'll be giving a virtual talk on (false) null results in experiments--and how to protect against them--at SWERP on 3/13 (3/12 8pm EST). Hope to see you there, and thanks to @sysilviakim.bsky.social for inviting me!

Link to join: swerp.netlify.app

26.02.2026 18:19 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

I’m having a mini panic attack every day

13.02.2026 00:20 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
It must be very hard to publish null results
Publication practices in the social sciences act as a filter that favors statistically significant results over null findings. While the problem of selection on significance (SoS) is well-known in theory, it has been difficult to measure its scope empirically, and it has been challenging to determine how selection varies across contexts. In this article, we use large language models to extract granular and validated data on about 100,000 articles published in over 150 political science journals from 2010 to 2024. We show that fewer than 2% of articles that rely on statistical methods report null-only findings in their abstracts, while over 90% of papers highlight significant results. To put these findings in perspective, we develop and calibrate a simple model of publication bias. Across a range of plausible assumptions, we find that statistically significant results are estimated to be one to two orders of magnitude more likely to enter the published record than null results. Leveraging metadata extracted from individual articles, we show that the pattern of strong SoS holds across subfields, journals, methods, and time periods. However, a few factors such as pre-registration and randomized experiments correlate with greater acceptance of null results. We conclude by discussing implications for the field and the potential of our new dataset for investigating other questions about political science.

It must be very hard to publish null results Publication practices in the social sciences act as a filter that favors statistically significant results over null findings. While the problem of selection on significance (SoS) is well-known in theory, it has been difficult to measure its scope empirically, and it has been challenging to determine how selection varies across contexts. In this article, we use large language models to extract granular and validated data on about 100,000 articles published in over 150 political science journals from 2010 to 2024. We show that fewer than 2% of articles that rely on statistical methods report null-only findings in their abstracts, while over 90% of papers highlight significant results. To put these findings in perspective, we develop and calibrate a simple model of publication bias. Across a range of plausible assumptions, we find that statistically significant results are estimated to be one to two orders of magnitude more likely to enter the published record than null results. Leveraging metadata extracted from individual articles, we show that the pattern of strong SoS holds across subfields, journals, methods, and time periods. However, a few factors such as pre-registration and randomized experiments correlate with greater acceptance of null results. We conclude by discussing implications for the field and the potential of our new dataset for investigating other questions about political science.

I have a new paper. We look at ~all stats articles in political science post-2010 & show that 94% have abstracts that claim to reject a null. Only 2% present only null results. This is hard to explain unless the research process has a filter that only lets rejections through.

11.02.2026 17:00 πŸ‘ 640 πŸ” 223 πŸ’¬ 30 πŸ“Œ 51

So happy that my Cambridge Element with @yesolakweon.bsky.social has been published! Free access for the next two weeks!

12.02.2026 04:18 πŸ‘ 14 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0

It’s now official. I’ll be publishing my first book, Respectability Politics, w/ @uchicagopress.bsky.social!

Proud to join a press w/ a strong lineage in Black studies & Black politics, including Cohen’s Boundaries of Blackness, which has deeply inspired my work.

Now to get these revisions done.

11.02.2026 19:52 πŸ‘ 678 πŸ” 68 πŸ’¬ 23 πŸ“Œ 4
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p.s. This took ~9 hours of back-and-forth with Claude Code. What an era.

12.02.2026 10:30 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

For student or faculty struggling to juggle projects: I've definitely benefited from this approach. I'm not saying this is a magic productivity bullet, but if you need some motivation, create your own for 2026.

PRs/feedback welcome (it's still probably buggy in places)

12.02.2026 10:29 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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It supports standard flowcharts (great for academic diagrams) and Gantt-style timelines.

I heavily rely on timeline viz to see where my projects are and where I am. Used this format for 6+ years with my writing group. See attachment for my 2026 timeline and goals.

12.02.2026 10:29 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Just built ✨FlowCraft✨, a free, open-source diagramming app (thanks Claude Code!)

Browser-based, no server, no signup, no tracking, no subscription, no dependencies, and no Internet required. Just open a single HTML file and start diagramming. AGPL.

github.com/sysilviakim/...

12.02.2026 10:28 πŸ‘ 9 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Look at the intensity gap in this NYT graph of how voters describe their current feelings toward Trump www.nytimes.com/interactive/...

26.01.2026 13:02 πŸ‘ 364 πŸ” 89 πŸ’¬ 22 πŸ“Œ 39
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Just published at PNAS (@pnas.org): β€œElecting amateur politicians reduces cross-party collaboration”

We show that districts electing first-time members of the U.S. House experience substantial declines in bipartisan representation in the subsequent Congress.

🧡1/4

09.10.2025 15:37 πŸ‘ 174 πŸ” 52 πŸ’¬ 4 πŸ“Œ 8
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"President Donald Trump and his top aides are using the word 'insurrection' more frequently to describe anti-ICE protests in places like Portland," writes Zachary B. Wolf. https://cnn.it/4pWYmzr

07.10.2025 07:00 πŸ‘ 228 πŸ” 71 πŸ’¬ 1152 πŸ“Œ 436

Public/private info on whether you will be doing admissions as usual will also be hugely appreciated!! Thank you

07.10.2025 01:21 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

U.S. political scientists, are any of your depts *not* admitting new PhD students this year (esp. for international applicants)?

I'm gathering info to help students know where to reconsider applying. Applications are not cheap and they're despairing. Appreciate any details.

07.10.2025 01:15 πŸ‘ 18 πŸ” 7 πŸ’¬ 1 πŸ“Œ 0

The latest issue of PA is out now. We have a great collection of papers by @yamilrvelez.bsky.social, @sysilviakim.bsky.social, @mattblackwell.bsky.social, @sophieehill.bsky.social, @dwlee.bsky.social, @melissazrogers.bsky.social, @kaipingchen.bsky.social, @samuelbaltz.bsky.social (1/2)

29.09.2025 15:45 πŸ‘ 7 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0
μ‚¬νšŒκ³Όν•™λŒ€ν•™ 2025년도 제2μ°¨ ꡐ원 μ΄ˆλΉ™ 곡고 μ‚¬νšŒκ³Όν•™λŒ€ν•™ μ „μž„κ΅μ›μ„ λ‹€μŒκ³Ό 같이 μ±„μš©ν•˜κ³ μž ν•©λ‹ˆλ‹€. 1. μ±„μš©μ •λ³΄ ν•™κ³Ό(λΆ€) μ±„μš©λΆ„μ•Ό μ±„μš©μΈμ›(λͺ…) λΉ„κ³  μ •μΉ˜μ™Έκ΅ν•™λΆ€ λ―Έκ΅­μ •μΉ˜ 1 Β  λ―Έκ΅­ 외ꡐ정책 1 Β  κ²½μ œν•™λΆ€ λ―Έμ‹œκ²½μ œν•™ 1 Β  κ±°μ‹œκ²½μ œν•™ 1 Β  κ³„λŸ‰κ²½μ œν•™ 1 Β  인λ₯˜ν•™κ³Ό μ•„μ‹œμ•„μ§€μ—­(ν•œκ΅­ μ œμ™Έ) 1 Β  μ‚¬νšŒλ³΅μ§€ν•™κ³Ό μ‚¬νšŒλ³΅μ§€ 및 κ΄€λ ¨λΆ„μ•Ό 1 2026. 9. μž„μš© μ˜ˆμ • μ‚¬νšŒλ³΅μ§€μž„μƒ 및 μ‹€μ²œ 1 언둠정보...

μ„œμšΈλŒ€ν•™κ΅ μ •μΉ˜μ™Έκ΅ν•™λΆ€μ—μ„œ μ „μž„κ΅μ›μ„ μ±„μš©ν•©λ‹ˆλ‹€. λ―Έκ΅­μ •μΉ˜ 1λͺ… 및 λ―Έκ΅­ 외ꡐ정책 1λͺ…μž…λ‹ˆλ‹€. λ‹€μŒ 링크λ₯Ό μ°Έκ³  λΆ€νƒλ“œλ¦½λ‹ˆλ‹€. κ°μ‚¬ν•©λ‹ˆλ‹€.

social.snu.ac.kr/%EA%B3%B5%EC...

19.09.2025 05:00 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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SWERP is back for fall 2025! Under what international contexts are citizens more likely to support peace with a foreign adversary? Jungmin Han will present about how third-party interactions shape public opinion on rapprochement.

Sep 26, 2025, 10am KST (= Sep 25 9pm ET)

12.09.2025 21:27 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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I'm not at APSA, but my master's student/coauthor, Sangmyung, is presenting! Come see how ideological "incongruence" in the U.S. has changed in the last decade.

Sat, Sep 13, 2-3:30pm local time.

09.09.2025 14:25 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This was a really fun paper to write (but a pain to collect data!) It took me embarrasingly long to wrap up and submit, so I'm thrilled it's now in the books.

12.08.2025 02:08 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Thank you for the post Hans!!

12.08.2025 02:01 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Ideologically extreme candidates don't solicit more small dollar donations. New at @respol.bsky.social from @sysilviakim.bsky.social

journals.sagepub.com/doi/10.1177/...

11.08.2025 10:50 πŸ‘ 8 πŸ” 5 πŸ’¬ 1 πŸ“Œ 1
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Currently in FirstView: In β€œAddressing Measurement Errors in Ranking Questions for the Social Sciences,” Yuki Atsusaka and @sysilviakim.bsky.social examine the statistical consequences of measurement error and introduce a framework for improving ranking data analysis.

17.07.2025 17:45 πŸ‘ 10 πŸ” 4 πŸ’¬ 1 πŸ“Œ 0
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πŸ“’ Thrilled to share our new article introducing CampaignViewβ€”a comprehensive open-source dataset of congressional candidate campaign bios and policy platforms (2018–2022). Paper + data here: campaignview.org & doi.org/10.7910/DVN/... 🧡1/4

10.07.2025 17:02 πŸ‘ 130 πŸ” 47 πŸ’¬ 7 πŸ“Œ 2
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SWERP returns with 2025's third presentation. Dr. Kyosuke Kikuta asks: what is the effect of solar eclipses on violence? Find out how armed groups rationally can use darkness for their tactical purposes.

5/2 10am KST = 5/1 Thu 9pm EST. See you soon!
swerp.weebly.com

14.04.2025 05:29 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Wasn't there a paper recently about how partisans are willing to tolerate cost to themselves and copartisans as long as outpartisans were going to suffer more? Anybody remember which paper this was?

21.03.2025 05:36 πŸ‘ 14 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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Opinion | They’re coming for immigrants first And the Trump administration is signaling that no one else might be safe, either.

Targeting people for their political views is not going to stop with immigrants.
Gift link: wapo.st/43Ssl2Q

20.03.2025 03:02 πŸ‘ 357 πŸ” 104 πŸ’¬ 10 πŸ“Œ 8
The Electoral Consequences of Ideological Persuasion: Evidence from a Within-Precinct Analysis of U.S. Elections Most research on the electoral penalty of candidate ideology relies on betweendistrict or longitudinal comparisons, which are confounded by turnout and ballot c

🚨 New paper (with Kasey Rhee & Nico Studen). We use a new within-precinct design to isolate how ideology affects vote choice holding turnout fixed, analyzing 3.4M precinct observations across state & fed elections (2016-2022).

tldr: Ideological moderation affects vote shares, but not by much. πŸ§΅β¬‡οΈ

11.03.2025 20:57 πŸ‘ 316 πŸ” 69 πŸ’¬ 14 πŸ“Œ 12
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Keep Winning with WinRed? Online Fundraising Platform as the Party's Public Good | The Journal of Politics: Vol 0, No ja

Thanks Michael! @jsievert.bsky.social Here's the link: doi.org/10.1086/735435. Happy to chat if you have any questions.

11.03.2025 19:12 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0