Manuel Rausch boosted:
2022-12-19

I looked at 325 psychology study replication results today, and the best simple rule I found for telling if a study would replicate is this:

When the original study's p-value was at most 0.01, about 72% of the papers replicated.

Whereas when p>0.01, only 48% replicated.

Others have found similar results.

For instance, @uebernerd has suggested p=0.005 as a cutoff:

replicationindex.com/2021/05/1

Manuel Rausch boosted:
2022-12-12

The {purrr} package is a powerfull way to replace loops. The {furrr} package takes this approach one step further by parallel execution: furrr.futureverse.org/index.ht #rstats #parallel

Manuel Rausch boosted:
Felix Schönbrodtnicebread@scicomm.xyz
2022-11-28

Now out in Psychological Medicine: Our paper demonstrating a ‘leapfrog’ trial as a method to accelerate the development and optimization of psychological interventions:

💰cambridge.org/core/journals/ps
:cc: psyarxiv.com/dvzn4/

#OpenScience: #Preregistered, with #openData and #openMaterial.
(Posts taken from @Blackwell_SE@twitter.com)

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Manuel Rausch boosted:
2022-11-26

The Bayesian One-sample t-Test Supersedes Correlation Analysis as a Test of Validity share.osf.io/preprint/E0200-82

2022-11-10

@nicebread
Gronau et al. doi.org/10.1037/xge0000324 estimate that 40% of all significant p-values published in Psychonomic Bulletin & Review stem from the H0. This is not want because it's conditioned on being significant and published. 60% could be regarded as upper limit for p(H1), though.

Manuel Rausch boosted:
Daniel HeckDaniel_Heck
2022-11-08

Bad news: Collecting data on may essentially boil down to asking a crowd of for their opinion:

Too Good to Be True: Bots and Bad Data From Mechanical Turk
(by Margaret A. Webb & June P. Tangney)
journals.sagepub.com/doi/abs/1

Quotes:

"at best, I had gathered valid data from 14 human beings—2.6% of my participant sample (N = 529)"

"This article is not meant as an empirical assessment of the validity of all MTurk data; rather, it is an illustration of an individual experience. "

2022-11-07
Manuel Rausch boosted:
Iris van Rooij 💭Iris@scholar.social
2022-11-07

Vacancy in our AI Department! -- Assistant Professor of Cognitive Robotics at the Donders Centre for Cognition ru.nl/werken-bij/vacatures/ass

Manuel Rausch boosted:
Paul Goldsmith-Pinkhampaulgp@econtwitter.net
2022-11-05

Added a bunch of custom program language emojis!

:rstats: -- : rstats :

:stata: -- : stata :

:python: -- : python :

:julia: -- : julia :

Manuel Rausch boosted:
Daniel Lakenslakens
2022-11-04

I've made a bot that toots preprints from PsyArXiv: botsin.space/@PsyArXivBot I liked it on the birdapp, and I missed it here. Hope it is useful for people.

It is fast, but the hyperlink goes to the SHARE meta-data. You need an extra click to go to the actual preprint. If you know how to fix this (I am using IFTTT) let me know.

Client Info

Server: https://mastodon.social
Version: 2025.07
Repository: https://github.com/cyevgeniy/lmst