Joe Quinn

@jmquinn
20 Followers
31 Following
5 Posts
Sociologist at the University of South Carolina. 
beliefs, behaviors, inequities ~ soc psych * nets
josephquinn.github.io
Joe QuinnDec 7, 2022
pengzell.bsky.socialDec 7, 2022

Just put up a fresh version of our paper "Within-School Achievement Sorting in Comprehensive and Tracked Systems" on #SocArXiv.

In comprehensive school systems, student select into friendship groups that are more homogenous in achievement.

But, this offsetting effect is not enough to undo the benefits of comprehensive schooling.

Come for the pretty graphs, stay for the excessive robustness checks!

https://osf.io/preprints/socarxiv/x6cbt

Show threadJoe QuinnNov 21, 2022
@@randomwalker i unfollowed patton oswalt in twitter’s early feed days because my entire chronological feed would get filled by him live-tweeting events like “eating a sandwich”
Show threadJoe QuinnNov 19, 2022
@vincentab awesome - thanks for getting me past my first page confusion 🤣
Show threadJoe QuinnNov 17, 2022
@vincentab related - I would love to see a tutorial/blog post that walks through an empirical example step by step to demonstrate the distinction between “adjusted predictions” that other marginal effects packages deploy vs the derivative equivalent. So much so that I may even write one myself if I tinker enough 🤣
Show threadJoe QuinnNov 17, 2022

@vincentab I can’t wait to use this!

Clarifying Q: the doc says “most [other R packages] do not actually compute marginal effects as defined above. Instead, they compute ‘adjusted predictions’ for different regressor values.” But when the doc defines marginal effects “above,” it says “in ‘marginal effects,’ we refer to the effect of a tiny (marginal) change in the regressor on the outcome.“ These two things sound the same - can you help a new user understand the difference?