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Ludwig Schulze

@ludwigschulze.bsky.social

PhD at EUI. (Historical) Political Economy of Authoritarianism. Focusing on former communist countries. First Generation.

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Daniel de Kadt@dandekadt.bsky.social · 2w ago

I have read this Response to my Comment and have written a Rejoinder, showing three things: 1. The multiverse is many correlated tests. 2. The randomization inference is wrong. 3. The trichotomous moderator reaffirms my point. I also enumerate 7 misleading claims, now in print in the APSR.

A Rejoinder to ‘Still Instrumentally Inclusive’ (Turnbull-Dugarte & López Ortega) Daniel de KadtCornell University, Department of Governmentdekadt@cornell.edu 2026-08-01 Abstract Turnbull-Dugarte and López Ortega’s “Still Instrumentally Inclusive” (the Response) answers my replication (the Comment) of their 2024 American Political Science Review paper (the Article) with, among other things, a multiverse of 2,970 analyses based on eighteen different weighting schemes, randomization inference, and a trichotomous moderator. As I show in this rejoinder, each is undermined by bona fide errors in their code, their writing, and their interpretation. First, the multiverse is just many correlated variants of the same test. This is in large part due to the weighting schemes which suffer multiple problems (some due to code errors, some intrinsic), and are largely correlated variations on one weighting scheme. Second, due to code errors the randomization inference compares a weighted statistic against an unweighted null and, in the two heterogeneity tests, permutes the interaction column rather than treatment assignment column. Every permutation p-value the Response reports is therefore computed against the wrong reference distribution; when they are recomputed correctly, two of the five it reports as significant are no longer so, and they are the two the Response emphasizes. Third, the trichotomous moderator is erroneously described as terciles, but it is in fact based on non-tercile cutpoints. The key subgroup effect reported in the Response thus rests on comparing just thirty high-weight control respondents against thirty-one high-weight treated respondents, and ends up reaffirming my original point that the heterogeneity in study 2 is with respect to weights, and not immigration sentiment as their theory predicts. I close by documenting seven claims in the Response that are untrue or misleading.
Cambridge University Press Political Science & IR@cambup-polsci.cambridge.org · 3w ago

#OpenAccess from @apsrjournal.bsky.social - Still Instrumentally Inclusive - https://cup.org/4bhrhsp "Do individuals in Western democracies shift their views on LGBT+ inclusion when exposed to opposition from Muslim out-groups?" - @turnbulldugarte.com & @bertous.bsky.social #FirstView

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Konstantin Bogatyrev@bogatyrev.bsky.social · 5mo ago

Today at 4pm GMT: Anna Clemente (@lsegovernment.bsky.social) is presenting “World War II Memories and Authoritarian Attitudes in Germany” at the Political Behaviour Seminar, organised with @sarahobolt.bsky.social, @florianfoos.bsky.social, & @mathiaspoertner.bsky.social. Join us in London & online!

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Florian Foos@florianfoos.bsky.social · 11mo ago

The @lsegovernment.bsky.social Political Behaviour Seminar Series will be back for the '25/26 academic year, as usually on Thursdays, 4-5pm, in CBG 4.17. Let us know if you are external and want to attend in-person, or join remotely on Zoom. More info here: www.lse.ac.uk/government/r...

Roberto Valli@robertovalli.bsky.social · 5mo ago

📢 Call for Papers – EUI PEARL PhD & Postdoc Workshop The Florence Political Economy Applied Research Lab is hosting a two-day workshop at the European University Institute. June 8–9, 2026. We'd love to see your work! [1/3]

EUI Political Behaviour Colloquium@behaviour-eui.bsky.social · 6mo ago

🎤 The speaker for the 20th session of the PBC will be @ludwigschulze.bsky.social, PhD Researcher at the European University Institute, who will be presenting “Land and Freedom: The Political Consequences of Land Reform in East Germany” 📍 Join us on Zoom! Register here: www.eui.eu/events?id=58...

Land and freedom

This session of the Political Behaviour Colloquium features a presentation by Ludwig Schulze, PhD researcher at EUI

eui.eu

Lars Wienand@larswienand.bsky.social · last yr.

Wer wohl dieser „Mertz“ ist, gegen den derzeit Bots laufend mit richtig schlechtem Text schießen? Das wird doch kein Transkriptionsfehler des kyrillischen Ц in „Фридрих Мерц“ sein?

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