Just published on APSR First View: "Partisan Leaning" by Zuheir Desai, Anderson Frey, and Scott Tyson. www.cambridge.org/core/journal...

To characterize the relationship between replication and external validity, they show that sign-congruent external validity and harmonization of studies are required to guarantee target-congruence between studies. You can read the paper here: www.cambridge.org/core/journal...

How do you know when a mechanism is externally valid? In“ Sign-Congruence, External Validity, and Replication,” @tara-slough.bsky.social and @scottatyson.bsky.social develop a framework for accumulating evidence across multiple studies and develop theoretical foundations for replication.

There are new #OpenAccess articles from @polanalysis.bsky.social available on the journal's #FirstView page -

cup.org/40mppbd

Inc. papers by @tara-slough.bsky.social, @devincaughey.bsky.social, @mehrl.bsky.social, @olsisblue.bsky.social, @corneliusfritz.bsky.social, @pkoc.bsky.social & and more

will need to have time to read in full, but this is 👌

📌

This book changed my mind about what a random-effects meta-analysis says about generalizability. I used to think it could *show* generalizability, now I understand it *asserts* generalizability.

An absolute thriller (although you may not be able to ID the suspect): BUY IT NOW 👇🏼

So happy to announce that my book with @tara-slough.bsky.social is now out at Cambridge Elements!!

External Validity and Evidence Accumulation

Link: www.cambridge.org/core/element...

Friendsgiving! And a birthday sash #40 @scottatyson.bsky.social