Jonathan Ladd

@arthur_spirling @asdurso @DrDRMiller @keithschnak These studies come at it from a different perspective: leaving Facebook entirely versus just manipulating people's feeds. But I think it's still fair to say these these are still looking at individual-level effects, not societal or global level effects.

@arthur_spirling @asdurso @DrDRMiller @keithschnak There was one in the US: aeaweb.org/articles?id=10… Bosnia-Herzegovina: pnas.org/doi/abs/10.107… Cyprus: static1.squarespace.com/static/60119a9… And I was part of a team that did one in France last year: jonathanmladd.com/uploads/5/3/6/…

@profmusgrave @arthur_spirling The big gap between Gen X (i.e, my gen) and younger generations is in whether they ever attended Sunday School. americansurveycenter.org/research/gener…

@profmusgrave @arthur_spirling Looks like the Boomer/Gen X divide doesn't really stand out in these data on attendance or prayer. It's more a steady decline by generation. Still I think the point holds that the difference you are seeing is people who didn't even grow up practicing. pewresearch.org/religion/relig…

I wrote about what's going on in one slice of college classrooms tinyurl.com/5fvtunrt

@profmusgrave I'm glad you got something out of that! I am a big fan or Becker's writing but you always wonder if students will see it as too "meta." That was when I taught a PhD seminar that was an overview of research design. We had a really great group the year you were in that class!

and remembering press.uchicago.edu/ucp/books/book…

One of the less expected crossover events of my PhD training was when @jonmladd introduced us to the writings of Howard Becker in a course I clumsily recall as being titled "How to Research" or something.

@b_schaffner @JeffreyMBerry @sobieraj @TuftsUniversity @TuftsPoliSci You can't see it in this picture, but I'm wearing a brown and blue shirt/jacket combo. I was given 5 minutes to talk and took about 10-15. I could have gone on for a few hours about how awesome Jeff is.

Touching retirement tribute to @JeffreyMBerry today. Only got to spend a few of his 49 years at Tufts as his colleague, but he’s definitely a legend here and in the field as a whole. And a true mensch.

@tnridout1 @PollsAndVotes I was in the class in 2001 and it used Stata that year. It was an outstanding class.

@PollsAndVotes Good times! Though my fading memory does not even recall the use of R in 2002...

Looking for something out of the past and found this list of TAs for my ICPSR MLE class. I'm forever grateful for their collaboration, support of students, and friendship. And BTW: does anyone remember the first year we switched to teaching in R?? I can document 2002. Earlier?

@pamela_herd @besttrousers Would Medicare or Obamacare have been re-passed if they were originally temporary programs that expired in, for instance, 1967 and 2011, respectively? Probably not.

@pamela_herd @besttrousers I think the convincing version of the policy-feedback claim that some social welfare policies are hard to repeal would say that both 1) an increase in public support, and 2) repeal requiring new government action are necessary conditions.

Worth noting that this demonstrates that the belief (on both the left and the right) that welfare state expansions are usually permanent is fairly weak. Maybe temporary government programs are just temporary.

@MikeCrespin @prisonrodeo @sowa75 Aren't music concerts the original motivating example of Baumol's cost disease?

@prisonrodeo @sowa75 Just here to say I’m still mad that I missed Pearl Jam during that tour because Sean forgot his ticket and we had to turn around and get it.

@namalhotra Yes, it's hard to explain. I actually like Achen's (1986) explanation, as applied to basically this set-up (the relationship between undergrad grades and grad school grades). But he's an unusually clear writer.

Ideology clouding sound scientific judgment seems to be most acute when it comes to collider bias. Per Jon Bendor, I think this is because collider bias is really complicated, and therefore ideology has a more powerful effect.

@sanford_gordon @gregsasso Achen (1986) on why you can't use the relationship between undergad grades and grad school grades as evidence of the effect of the former on the latter. The same logic applies to admissions test scores and grades among admitted students.

@sanford_gordon @gregsasso I'm not advocating for or against admissions tests, necessarily. There might be other evidence to consider. But there is just no convincing evidence either way that can come from research designs like this. This has been in our textbooks for decades. People should know better.

@emilythorson Indeed. All true. And the simple act of drawing correct conclusions from lots of research is hard, whether you are writing for an academic or broad audience.

@jonmladd I think about this a lot. writing about research and translating it into accessible, interesting language is HARD. I'm really glad we have people who take that on and I'm very willing to forgive them for making good-faith mistakes. I make mistakes too!

@arthur_spirling Yes, I think that's right.

@jonmladd isn't the story with this one specifically that they basically did it medieval style? As in, individual masons working it with their hands etc?

isn’t “time” typically the answer? As in, two orders of magnitude more time than modern society would take to do it