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Author: Julia Rohrer

On the origin of psychological research practices, with special regard to self-reported nostril width

July 31, 2020 Julia Rohrer 5 Comments

The longer I have been in psychological research, the more I wonder about why we do things the way we…

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Posted in: Statistics, Teaching
An ice-cream cone ready to fight one Sauerkraut.

Indirect Effect Ex Machina

October 3, 2019 Julia Rohrer 6 Comments

Let’s hypothesize that eating ice cream cured depression, and that this effect was mediated by the sensory pleasure derived from…

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Posted in: Uncategorized

Longitudinal data don’t magically solve causal inference

April 16, 2019 Julia Rohrer 2 Comments

Update 2022: There is now a manuscript that discusses the topic of this blog post in more depth, see preprint…

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Cattle eating grass through barbed wire fence

Econ Envy

December 4, 2018 Julia Rohrer 7 Comments

Earlier this year, I went through an academic existential crisis in which I questioned whether the field of research I’m…

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Posted in: Uncategorized

We should all feel a bit more like impostors

August 2, 2018 Julia Rohrer Leave a comment

This blog post is going to argue that science would profit if we all suffered more (not less!) from impostor…

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It’s like ten thousand replications when all you need is a [transparent loss-of-confidence statement]

May 3, 2018 Julia Rohrer Leave a comment

Update, March 2nd 2021: You can now find the published manuscript in Perspectives on Psychological Science, “Putting the Self in…

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The uncanny mountain: p-values between .01 and .10 are still a problem

February 15, 2018 Julia Rohrer 8 Comments

[Update: After this post had been published, Uli Schimmack and I had a quick chat and Uli was very surprised…

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Posted in: Statistics
Life is like a box of chocolates

Scientific Cuddles vs. Criticism

June 22, 2017 Julia Rohrer 30 Comments

A bit more than a month ago, I arrived in Ann Arbor, Michigan, to spend my summer working with some…

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Posted in: Uncategorized

What’s an age-effect net of all time-varying covariates?

April 21, 2017 Julia Rohrer 8 Comments

TL;DR: What’s an age-effect net of all time-varying covariates? The sound of one hand clapping. Recently, we submitted a paper…

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That one weird third variable problem nobody ever mentions: Conditioning on a collider

March 14, 2017 Julia Rohrer 22 Comments

Scroll to the very end of this post for an addendum.[1]If you only see footnotes, you have scrolled too far. Reading…

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