Todd Jennings
toddtalks.bsky.social
Todd Jennings
@toddtalks.bsky.social
Clinical psychology PhD student at University of Nevada, Las Vegas. Studying lgbtq mental health, compulsive sexual behavior, chemsex, and psychopathology. 🏳️‍🌈🏳️‍🌈
Reposted by Todd Jennings
I will give another talk about mediation analysis and I have finally figured out what I want to say about "design-based" solutions:
- longitudinal data can help rule out certain types of confounding
- if you sequentially intervene on X and M, you need assumptions to piece the estimates together
>
November 26, 2025 at 1:24 PM
Reposted by Todd Jennings
DOGE is ending 8 months early. It will have cost us $135B to rehire workers, $21.7B in waste, a potential loss of more than $500B billion in tax revenue over 10 years & a loss of $10B in economic activity with the loss of programs that previously returned billions to taxpayers.
November 25, 2025 at 4:07 AM
Reposted by Todd Jennings
1. A landmark study was just published in The Journal of Pediatrics.

It found a 68% reduction in suicidality for trans youth getting HRT.

It also found only 7 of more than 400 stopped taking HRT... and of those that did, 4 still identified as gender-diverse.

Transgender care saves lives.
Study In The Journal Of Pediatrics Finds Trans Youth Care Lowers Suicidality, Few Detransition
The groundbreaking study found that suicidality dropped for transgender youth receiving hormone therapy by nearly 70%, with only 7 patients of 432 discontinuing treatment.
www.erininthemorning.com
November 24, 2025 at 11:01 PM
Reposted by Todd Jennings
There is no reason why systematic reviews can't be open. The data used for synthesis is *already* open and there are many excellent open source tools that can facilitate the easy sharing of analysis scripts.

Here's a nice guide for performing open systematic reviews doi.org/10.1525/coll...
November 24, 2025 at 12:10 PM
Reposted by Todd Jennings
Research Assistant Professor position at @unm.edu - join a dynamic team working with @cassie-boness.bsky.social. This position is to work on an NIH grant evaluating personalized medicine approaches for the treatment of alcohol use disorder. Submit via UNMJobs by Nov 26: unm.csod.com/ux/ats/caree...
Research Assistant Professor in Personalized Medicine for the Treatment of Alcohol Use Disorder
Seeking applicants for a Research Assistant Professor faculty position at the University of New Mexico on an NIH funded grant evaluating personalized ...
unm.csod.com
November 7, 2025 at 5:51 PM
Reposted by Todd Jennings
Next weekend, I’m giving a talk for the Sexual Health Alliance entitled “Naked and (Un)afraid: The Role of Body Image in Sexual Health, Functioning, and Satisfaction.” Join us!

Note: I was a late addition to the schedule, but I am presenting!! :)

sexualhealthalliance.com/couples-ther...
Techniques in Couples Therapy and Relationship Coaching — Sexual Health Alliance
Elevate your expertise with top experts in couples therapy and relationship coaching at our evidence-based event on techniques and research in sexual health.
sexualhealthalliance.com
October 31, 2025 at 9:08 PM
Reposted by Todd Jennings
Major win for our field: finally a large, replicable effect.
Results of the replication are in!

Chocolate is more desirable than poop:

Cohen's d_rm = 6.20, 95%CI [5.63, 6.78]

N = 486, two single item 1-7 Likert scales of desirability.

w/
@jamiecummins.bsky.social
Make an effect size prediction!

@jamiecummins.bsky.social and I are replicating Balcetis & Dunning's (2010) "chocolate is more desirable than poop" (Cohen's d = 4.52)

Let us known in the replies what effect size you think we'll find. Details of the study in the thread below.
October 15, 2025 at 11:29 AM
Reposted by Todd Jennings
Results of the replication are in!

Chocolate is more desirable than poop:

Cohen's d_rm = 6.20, 95%CI [5.63, 6.78]

N = 486, two single item 1-7 Likert scales of desirability.

w/
@jamiecummins.bsky.social
Make an effect size prediction!

@jamiecummins.bsky.social and I are replicating Balcetis & Dunning's (2010) "chocolate is more desirable than poop" (Cohen's d = 4.52)

Let us known in the replies what effect size you think we'll find. Details of the study in the thread below.
October 14, 2025 at 6:16 PM
Reposted by Todd Jennings
New blog post!

Let's say you have two measures meant to capture the same confounder. They're highly correlated. Can you still proceed with your regression analysis?

(I admit, the title is a bit of a spoiler)

www.the100.ci/2025/10/13/i...
If you have two measures of the same confounder, you can just include both of them in your regression model
Sometimes, researchers worry about multicollinearity in situations where it’s actually a non-issue. Here’s one such scenario. Imagine a situation where you are interested in the effect of X on Y (X...
www.the100.ci
October 13, 2025 at 1:14 PM
Reposted by Todd Jennings
A new take on the limitations of "psychometric networks" now out in Nature Human Behavior. You don't want to put too much confidence in individual edges. Something we cautioned against in 2017.

1/2

www.nature.com/articles/s41...
Statistical evidence in psychological networks - Nature Human Behaviour
Psychometric network models have become increasingly popular in psychology and the social sciences. Huth et al. show that a large proportion of reported network findings are based on weak or inconclusive evidence inviting caution when interpreting results.
www.nature.com
October 12, 2025 at 11:08 AM
Reposted by Todd Jennings
I have a full course on R for Psychology and Neuroscience, which includes sample programs and lecture videos. Also has some recommended books on R programming. Perfect for beginners!
rworkshop.missouri.edu
October 9, 2025 at 4:25 PM
Reposted by Todd Jennings
Would love some recommendations for biostats texts! Especially biostatistics using R. Feeling a little out of my depth with this, but hoping to find a great resource for self-teaching.
October 7, 2025 at 9:37 PM
Reposted by Todd Jennings
We’ve just published another video on HiTOP that tries to flesh out a bit more how the framework can be helpful in research: youtu.be/q0jOi_Nl1yo

We hope it’s useful, and are keen to hear any feedback

Thanks again so much to @tashtc.bsky.social for all of her hard work creating this video series ✨
Using HiTOP in Research
YouTube video by HiTOP
youtu.be
October 7, 2025 at 11:37 PM
Reposted by Todd Jennings
🚨 Position Alert! 🚨
I am looking for a full-time Research Scientist 1 to join my lab in Albuquerque, NM at the Center on Alcohol, Substance Use, and Addiction (CASAA). We will be studying how stress and trauma influence cannabis and substance use. 🧠🌿 (1/5)
October 2, 2025 at 10:33 PM
Reposted by Todd Jennings
Had missed this absolutely brilliant paper. They take a widely used social media addiction scale & replace 'social media' with 'friends'. The resulting scale has great psychometric properties & 69% of people have friend addictions.

link.springer.com/article/10.3...
Development of an Offline-Friend Addiction Questionnaire (O-FAQ): Are most people really social addicts? - Behavior Research Methods
A growing number of self-report measures aim to define interactions with social media in a pathological behavior framework, often using terminology focused on identifying those who are ‘addicted’ to engaging with others online. Specifically, measures of ‘social media addiction’ focus on motivations for online social information seeking, which could relate to motivations for offline social information seeking. However, it could be the case that these same measures could reveal a pattern of friend addiction in general. This study develops the Offline-Friend Addiction Questionnaire (O-FAQ) by re-wording items from highly cited pathological social media use scales to reflect “spending time with friends”. Our methodology for validation follows the current literature precedent in the development of social media ‘addiction’ scales. The O-FAQ had a three-factor solution in an exploratory sample of N = 807 and these factors were stable in a 4-week retest (r = .72 to .86) and was validated against personality traits, and risk-taking behavior, in conceptually plausible directions. Using the same polythetic classification techniques as pathological social media use studies, we were able to classify 69% of our sample as addicted to spending time with their friends. The discussion of our satirical research is a critical reflection on the role of measurement and human sociality in social media research. We question the extent to which connecting with others can be considered an ‘addiction’ and discuss issues concerning the validation of new ‘addiction’ measures without relevant medical constructs. Readers should approach our measure with a level of skepticism that should be afforded to current social media addiction measures.
link.springer.com
October 1, 2025 at 11:33 AM
Reposted by Todd Jennings
Intervening on a central node in a network likely does little given that its connected neighbors will "flip it back" immediately. Happy to see this position supported now.

"Change is most likely [..] if it spreads first among relatively poorly connected nodes."

www.nature.com/articles/s41...
Transformation starts at the periphery of networks where pushback is less - Scientific Reports
Scientific Reports - Transformation starts at the periphery of networks where pushback is less
www.nature.com
September 29, 2025 at 9:16 AM
Reposted by Todd Jennings
“Not only is change from baseline a very problematic response variable; the very notion of patient improvement as an outcome measure can even be misleading. A patient who starts at the best level and who does not worsen should be considered a success.”
I am sickened that journals are still letting authors compute change from baseline in parallel group studies. hbiostat.org/bbr/change
September 27, 2025 at 12:39 PM
Reposted by Todd Jennings
So excited to share my first, first-author publication where we used EMA to examine the prospective relationship between momentary positive and negative affect and an “I don’t know” response option when asked about motives for use. www.sciencedirect.com/science/arti...
Tell me why: An ecological momentary assessment study of “unknown” substance use motive endorsement and the predictive utility of affect
Theoretical models of substance use motives emphasize the role of affect when making decisions about use and propose that there are moments during whi…
www.sciencedirect.com
September 18, 2025 at 6:27 PM
Reposted by Todd Jennings
@drandreahoward.bsky.social, hold my beer..

Latent class growth models are worse than useless, and we've known this for more than 20 years.

(See Bauer 2007)
i’m not going to write a thread today about problems with latent class growth analyses nope nope NOPE i won’t do it
June 20, 2025 at 7:05 PM
Reposted by Todd Jennings
oh noooo
September 6, 2025 at 3:15 PM
Reposted by Todd Jennings
Our latest paper is out in JAMA Pediatrics, discussing the upcoming Supreme Court case that aims to overturn conversion therapy bans.
jamanetwork.com/journals/jam...
Chiles vs Salazar—Conversion Efforts Bans and Free Speech
This Viewpoint discusses an upcoming US Supreme Court case that will examine whether Colorado’s ban on conversion efforts for minors appropriately regulates substandard clinical practice or is a viewp...
jamanetwork.com
September 3, 2025 at 8:31 PM
Reposted by Todd Jennings
The psych job market may not be dead... but it is gravely injured 😬 So far it's looking like the Trump administration's attacks on higher ed/research are going to have more than 2x the impact on the job market as the covid-19 pandemic. #psychjobs #neurojobs #academicjobs
September 3, 2025 at 6:27 PM
Reposted by Todd Jennings
JUST IN: Harvard won summary judgment against the Trump administration with the court finding that the admin violated Harvard's 1st amend. rights. The court has vacated the funding freeze orders and termination letters and issued a permanent injunction.

storage.courtlistener.com/recap/gov.us...
September 3, 2025 at 8:35 PM
Reposted by Todd Jennings
Ever stared at a table of regression coefficients & wondered what you're doing with your life?

Very excited to share this gentle introduction to another way of making sense of statistical models (w @vincentab.bsky.social)
Preprint: doi.org/10.31234/osf...
Website: j-rohrer.github.io/marginal-psy...
August 25, 2025 at 11:49 AM