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Mark Shuquan Chen

@markschen.bsky.social

Postdoc @Yale incoming AP @HarvardPsy | context, flexibility, affective psychopathology and resilience to stress/trauma

535 Followers  |  233 Following  |  30 Posts  |  Joined: 22.09.2023  |  2.0163

Latest posts by markschen.bsky.social on Bluesky

I will be at SRP in LA next week! Looking forward to seeing friends and connecting with folks working on emotion/emo reg, flexibility, internalizing psychopathology, EMA, etc!

18.09.2025 21:51 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Same! I got one request every other day on average the past 3 wks which wasn’t the case other time of the year

18.09.2025 21:41 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Post Doctoral Scholar Screen reader users may encounter difficulty with this site. For assistance with applying, please contact hr-accessibleapplication@osu.edu. If you have questions while submitting an application, pleas...

Postdoc with us in Columbus! 🌰

I'm pumped to recruit a 1-2 year postdoc working on:
- mechanisms of change in treatment
- treatment personalization
- emotion reg

With a breakdown of:
50% research
30% treatment
20% mentorship/collaboration/conferences

osu.wd1.myworkdayjobs.com/OSUCareers/j...

18.09.2025 17:47 β€” πŸ‘ 15    πŸ” 18    πŸ’¬ 1    πŸ“Œ 2
Details - Assistant Professor, Developmental Psychology CAHSS | University of Denver

Come be my colleague! We’re hiring a tenure-track assistant professor of developmental psychology at the University of Denver. Please share with anyone on the job market this year! jobs.du.edu/en-us/job/49...

17.09.2025 20:37 β€” πŸ‘ 51    πŸ” 42    πŸ’¬ 1    πŸ“Œ 1
We present our new preprint titled "Large Language Model Hacking: Quantifying the Hidden Risks of Using LLMs for Text Annotation".
We quantify LLM hacking risk through systematic replication of 37 diverse computational social science annotation tasks.
For these tasks, we use a combined set of 2,361 realistic hypotheses that researchers might test using these annotations.
Then, we collect 13 million LLM annotations across plausible LLM configurations.
These annotations feed into 1.4 million regressions testing the hypotheses. 
For a hypothesis with no true effect (ground truth $p > 0.05$), different LLM configurations yield conflicting conclusions.
Checkmarks indicate correct statistical conclusions matching ground truth; crosses indicate LLM hacking -- incorrect conclusions due to annotation errors.
Across all experiments, LLM hacking occurs in 31-50\% of cases even with highly capable models.
Since minor configuration changes can flip scientific conclusions, from correct to incorrect, LLM hacking can be exploited to present anything as statistically significant.

We present our new preprint titled "Large Language Model Hacking: Quantifying the Hidden Risks of Using LLMs for Text Annotation". We quantify LLM hacking risk through systematic replication of 37 diverse computational social science annotation tasks. For these tasks, we use a combined set of 2,361 realistic hypotheses that researchers might test using these annotations. Then, we collect 13 million LLM annotations across plausible LLM configurations. These annotations feed into 1.4 million regressions testing the hypotheses. For a hypothesis with no true effect (ground truth $p > 0.05$), different LLM configurations yield conflicting conclusions. Checkmarks indicate correct statistical conclusions matching ground truth; crosses indicate LLM hacking -- incorrect conclusions due to annotation errors. Across all experiments, LLM hacking occurs in 31-50\% of cases even with highly capable models. Since minor configuration changes can flip scientific conclusions, from correct to incorrect, LLM hacking can be exploited to present anything as statistically significant.

🚨 New paper alert 🚨 Using LLMs as data annotators, you can produce any scientific result you want. We call this **LLM Hacking**.

Paper: arxiv.org/pdf/2509.08825

12.09.2025 10:33 β€” πŸ‘ 262    πŸ” 96    πŸ’¬ 6    πŸ“Œ 20

I will share some common Q&As later. Applicants are very welcome to email me with questions not addressed on the department website, but contacting me isn’t required and doesn't impact your application.

09.09.2025 16:31 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Applicants interested in using EMA, psychophysiology, and/or computational methods to study stress, emotion/emotion regulation processes, and psychopathology are especially encouraged to apply.

09.09.2025 16:31 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Mark Chen | Department of Psychology

My website is official πŸ™Œ Excited to share that I am interested in reviewing applications for Harvard’s Clinical Science PhD program this fall as I look for the first student to join my lab! I appreciate it if you can share with your network :)
psychology.fas.harvard.edu/people/mark-...

09.09.2025 16:31 β€” πŸ‘ 68    πŸ” 42    πŸ’¬ 2    πŸ“Œ 1

Very late to this but I would love to be added!

01.09.2025 23:39 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
cooper_postdoc_description_2025.pdf

🚨 Postdoc Opportunity @ UT Austin!

I’m recruiting a clinical psychologist or neuroscientist to join us in 2025/2026.

Our work: fear/threat + fMRI + EMA + HiTOP + anxiety/trauma/OC psychopathology in adults & adolescents + fancy stats!

πŸ“„ Description: tinyurl.com/2jfk8d8m
🌐 Lab: www.scoop-lab.com

14.08.2025 13:46 β€” πŸ‘ 25    πŸ” 26    πŸ’¬ 1    πŸ“Œ 1
06.08.2025 20:23 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Homepage of the Action, Computation, & Thinking (ACT) Lab, Yale department of psychology

Happy to announce that my lab @ Yale Psychology (actcompthink.org) will be accepting PhD applications this year (for start in Fall '26)!

Come for the fun experiments on human learning, memory, & skilled behavior, stay for the best πŸ• in the US.

Please reach out if you have any questions!

24.07.2025 13:29 β€” πŸ‘ 111    πŸ” 51    πŸ’¬ 3    πŸ“Œ 0

Postdoc opportunity alert!

23.04.2025 18:46 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The Associations Between Cognitive Flexibility and Suicidal Thoughts and Behaviors: A Systematic Review and Meta-Analysis - Cognitive Therapy and Research Purpose Cognitive flexibility is associated with various psychological processes and outcomes. However, its relationship with suicidal thoughts and behaviors (STBs) remains inconclusive. Clarifying th...

Are individuals with greater cognitive flexibility (CF) less likely to report suicidal thoughts and behaviors?
Our new meta-analysis found a small yet significant association, highlighting CF as a potentially protective mechanism against suicide risk.
link.springer.com/article/10.1...

23.04.2025 13:41 β€” πŸ‘ 7    πŸ” 2    πŸ’¬ 1    πŸ“Œ 1

Proud of you!!!

21.04.2025 20:01 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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One of my independent projects from my master’s is now online! @markschen.bsky.social @vnikakobrinsky.bsky.social @kaiwen bi. doi.org/10.1037/sgd0...

11.04.2025 00:41 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
11.04.2025 00:35 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Again please share our study on the executive orders in academia

iu.co1.qualtrics.com/jfe/form/SV_...

17.02.2025 14:41 β€” πŸ‘ 26    πŸ” 27    πŸ’¬ 0    πŸ“Œ 1

Elon musk is the richest man in the world, he could be funding hospitals, medical research and universities. He could be solving the climate crisis. He could be feeding, hungry children. Instead, he’s trying to make sure that your grandmother doesn’t get an extra dollar of Social Security.

17.02.2025 13:49 β€” πŸ‘ 14010    πŸ” 3955    πŸ’¬ 527    πŸ“Œ 212

Thrilled to co-chair a symposium with @yutongzhu.bsky.social on Emotion Regulation in Context: Variability, Goals, and Strategies across Temporal, Situational, and Cultural Dimensions at @psychscience.bsky.social with @tabeaspringstein.bsky.social, Sophia Capellini, Audrey Hey, and Casey Brown!!

14.02.2025 21:53 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 0    πŸ“Œ 2

The news cycle right now - even just for science & higher ed - is overwhelming. We have to do it, but fortunately, we don’t have to do it alone.

My team is focused on tracking what’s happening to research funding, jobs & salaries, shared datasets, university responses & safety of our communities

01.02.2025 15:59 β€” πŸ‘ 1350    πŸ” 270    πŸ’¬ 15    πŸ“Œ 20

Thank you Christian! All the best with your upcoming move and transition!

15.01.2025 22:28 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Thanks Shayan. Hope all’s well 😊

15.01.2025 22:26 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

YES πŸ™‹

15.01.2025 22:25 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Thank you Felicia! Excited that we can overlap for another year!!! πŸ™‹

15.01.2025 22:21 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Thanks Tapan! It was nice seeing you last year 😊 hope all’s well

15.01.2025 22:20 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Thanks Dan! I appreciate chatting during SRP, which feels like a long time ago! Looking forward to staying in touch :)

15.01.2025 22:19 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Thank you so much, Anna!!

15.01.2025 22:18 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Thank you Tabea!! Hoping that we can work on something together at some point. :D

15.01.2025 17:53 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

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