Proudly presenting the (for now) final version of "Why experiments work." To share the materials in a slightly more professional manner, I added a "Resources" page to my website: juliarohrer.com/resources/.

That was long overdue anyway; now there's also a curated list of my papers and blog posts.

Thanks to everybody who chimed in!

I arrived at the conclusion that (1) there's a lot of interesting stuff about interactions and (2) the figure I was looking for does not exist.

So, I made it myself! Here's a simple illustration of how to control for confounding in interactions:>

*Sharing code for research publications*
Here's the process that I've ended up with, through various collaborators like Robert Forkel, @simongreenhill.bsky.social , Stephen Francis Mann and others.
Not perfect perhaps, but works pretty ok.
A student asked, so I made this illustration.

New study out! w/ @abdelrahmanlab.bsky.social
"A brush with scandal: How artist morality shapes aesthetic preferences."
Immoral info about artists ⬇️ liking for paintings. Similar info tied to someone else has no effect, challenging general valence transfer accounts:

psycnet.apa.org/record/2026-...

New Year, New Colour Tool
for you data visualizers and maybe the odd designer

obumbratta.com/colour

Log Cabin xkcd.com/2891

In case you ever wondered about the differences between magrittr pipe and base pipe 🤔

This table is taken from a great stackoverflow answer by @GeorgKindermann

stackoverflow.com/questions/67...

#rstats #dataviz #phd

You can specify relative position in ggplot with I(x) I(y).

E.g. annotate("text", x = I(.5), y = I(.5), label = "hello!") will place the text in the middle of the plot.
This, combined with alignment arguments is like 87% of the magic for me.

I would also love to see the code for the plot, it is really nice!