Recently started using Blimp for this, and it’s been great (especially with complex multilevel models). Their manual has applied examples for selection models, PMMs, etc.

Here’s a recent one in Psych Assessment:

psycnet.apa.org/doiLanding?d...

Or, what if brain structure doesn't play a big role in psychopathy given how little it does for personality in general?

psycnet.apa.org/record/2022-...

The construct 'personality functioning' is currently not logically defined: https://osf.io/zncr7

First PPDI Lab paper of the year, led by our amazing lab manager Sara Schwind (🚨she's on the PhD market next year🚨)! we reviewed the transparency practicesat BBI. #OpenScience 1/6

www.sciencedirect.com/science/arti...

W/ @dillonmwong.bsky.social, @courtlandhyatt.bsky.social, @drlynam.bsky.social, and @jdmiller.bsky.social

Continuing to think through the degree to which “individual difference” domains explain variance in EXT above and beyond personality traits through additive and interactive effects feels like an important first step to building stronger, empirically driven theories of EXT

Additive and Interactive Relations of Personality and Cognition With Externalizing Behaviors - Nathaniel L. Phillips, Nathan T. Carter, Kevin M. King, Courtland S. Hyatt, Max M. Owens, Donald R. Lynam... Personality and cognition offer robust frameworks to understand the individual differences associated with externalizing behaviors. However, these literatures h...

In many ways, this serves as an extension of our paper at CPS where we asked the same basic question but with personality and cognitive aptitude

journals.sagepub.com/doi/abs/10.1...

Happy to see this now out at JRP

For this one, we took a swing at integrating two historically siloed literatures that focus on the individual differences related to externalizing behaviors: personality and formidability

Paper on statistical power necessary for interaction effects
doi.org/10.1177/2515...

Tl/dr: Most estimated effects did not meet our preregistered sig. threshold, except Lack of Premeditation showed a robust, positive association with time spent gambling. Within-person momentary affect variables’ relations with gambling behaviors were weak and varied considerably among participants

Happy to share that this has just been accepted over at Journal of Psychopathology and Behavioral Assessment

w/ @vizecolin.bsky.social, Kate Collison, Michael Crowe, @drlynam.bsky.social, & @jdmiller.bsky.social

Richard McElreath: It must not be overlooked that junior researchers DO NOT TRUST US. We, the directors, are a big part of the problem. We made this system, we remake it every year, and we benefit from it. What can we do to credibly signal our commitment to reform a corrupt research culture? My conversations with junior scientists in the society has taught me that directors are too often either indifferent or hostile to science reform. We cannot hope to convince our prize winning colleagues. Their egos are immune. But we can replace retirements with researchers who care more about integrity than their own prestige. This is important both for earning the trust of the junior researchers who really do the research in the MPG and for attracting excellent future directors and starting to earn the trust of the public. So I suggest two strong signals to our junior researchers (and the public): (1) we will reform recruitment and promotion at all levels to eliminate proxies like citation counts and journal brands in favor of reliability and sustainability; (2) we will make open science skills a core part of scientific training, through the graduate schools at a minimum, as conditions for the central funding. The most ambitious thing we could do, as hinted at in item 5 above, is to meaningfully invest in metascientific research. As the largest basic research organization in the world, the MPG is uniquely suited to studying research and its products from a broad perspective that includes the humanities, the sciences, and policy. Governments are already involved in science reform. Someone should study it in an organized and sustained way.

The Max Planck Society has begun an exploratory round table for open science. We are drafting some recommendations to leadership. Still a long way to go! But here are my notes on the most recent draft, just so you all know how I am trying to steer things.

This paper is now out in print:

journals.sagepub.com/doi/10.1177/...

TLDR still holds.

Perils of Partialing: Can Scholars Predict Residualized Variables' Nomological Nets? Objective Partialing is a statistical procedure in which the variance shared among two or more constructs is removed, allowing researchers to examine the unique properties of the residualized, parti...

Excited to share a Registered Report in J. of Personality looking at the “perils of partialing” – led by the Bluesky-less Leigha Rose with @drlynam.bsky.social and me. (1)

onlinelibrary.wiley.com/doi/10.1111/...

We just preprinted a huge meta-meta-analysis examining the effects of exercise on cognition, memory, and executive function

In short
- 2239 effect sizes
- extreme between-study heterogeneity
- extensive publication bias
- some subgroup/exercise-specific effects

More below (doi.org/10.31234/osf...)

Very useful table of insufficient examples vs. best-practices for statistical reporting!

Will definitely point some of my colleagues to it! 📈

Massive and important undertaking by @andrew-cast.bsky.social, @drlynam.bsky.social, and co in estimating when interaction effects stabilize in linear regression

Tldr: Under realistic conditions for psych research, N = 3,800

When do interaction/moderation effects stabilize in linear regression?: https://osf.io/35t84

Exciting news from the Academy of Psychological Clinical Science--a joint effort to enhance open science training in clinical psychology!

If you are interested, you can the papers mentioned in the email here:
Van Til et al. osf.io/h34jg/files/...
OSC paper (Lynam et al.) osf.io/preprints/ps...

Hey Philipp, what’s your email? I can send it your way

Love to see a registered report that reinforces why the registered report is such a valuable tool

Interactions are difficult to detect in field studies as they are typically tiny--very small to start with and made smaller by the joint unreliabilities of the components. Here, we find some but the contribution to explained variance is negligible. Call off the search. It is not worth the effort.

Pretty excited about this one. In this paper, we discuss the replication/credibility crisis, the factors that contribute to it, and clinical psychology's slow (really slow) progress in dealing with it. We offer a competency-based fraemwork for improving our training of future scholars.
1/2

Rigorous science is transparent science.

New paper led by @drlynam.bsky.social on the need for more training in and engagement with open science practices in clinical psych programs. It has been difficult to make progress due to a variety of barriers, including students working in labs uninterested or hostile to these approaches.

Just accepted from @vizecolin.bsky.social and myself. We coded Open Science practices (preregistration, RRs, open data, and open code) from 2021 to 2024 in two personality disorder journals (JPD, PDTRT) and three personality journals *JOP JRP, and EJP).
osf.io/preprints/ps...
1/5

Lol 100 percent. I feel similarly when diving into this literature and posted this a little while ago hoping for some clarity (and got crickets)

bsky.app/profile/nphi...

A review of spline function procedures in R - BMC Medical Research Methodology Background With progress on both the theoretical and the computational fronts the use of spline modelling has become an established tool in statistical regression analysis. An important issue in splin...

Not sure if this is the type of work you're looking for, but I read this one recently and found it helpful! Interested to see what other folks recommend bmcmedresmethodol.biomedcentral.com/articles/10....

Additive and Interactive Relations of Personality and Cognition With Externalizing Behaviors - Nathaniel L. Phillips, Nathan T. Carter, Kevin M. King, Courtland S. Hyatt, Max M. Owens, Donald R. Lynam... Personality and cognition offer robust frameworks to understand the individual differences associated with externalizing behaviors. However, these literatures h...

𝐀𝐝𝐝𝐢𝐭𝐢𝐯𝐞 𝐚𝐧𝐝 𝐈𝐧𝐭𝐞𝐫𝐚𝐜𝐭𝐢𝐯𝐞 𝐑𝐞𝐥𝐚𝐭𝐢𝐨𝐧𝐬𝐨𝐟 𝐏𝐞𝐫𝐬𝐨𝐧𝐚𝐥𝐢𝐭𝐲 𝐚𝐧𝐝 𝐂𝐨𝐠𝐧𝐢𝐭𝐢𝐨𝐧 𝐖𝐢𝐭𝐡𝐄𝐱𝐭𝐞𝐫𝐧𝐚𝐥𝐢𝐳𝐢𝐧𝐠 𝐁𝐞𝐡𝐚𝐯𝐢𝐨𝐫𝐬 | "Although interaction effects were detected, they were small and practically negligible in their explanation of variance in externalizing behaviors" journals.sagepub.com/doi/10.1177/...