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Yi Feng

@yifeng.bsky.social

She/her; Assistant professor in Quant Psych at UCLA; PhD in Quant Methodology from UMD; Into SEM & Causal Graphical Models | Too school 4 cool.

563 Followers  |  53 Following  |  18 Posts  |  Joined: 23.09.2023
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Posts by Yi Feng (@yifeng.bsky.social)

We’ll keep updating it and more features to come in the near future. Feedbacks welcome. Happy planning! πŸ’ͺ🏼

27.02.2026 19:18 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Particularly for contextual meta-collinearity, which is less intuitive as a meta parameter, you may follow the step-by-step interactive process to get a recommended value.

27.02.2026 19:18 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Additionally, we provide detailed guidelines on setting the focal effect γ and the contextual meta-collinearity ρ_c.

27.02.2026 19:18 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Based on your inputs, it automatically generates a write-up template that you can conveniently adapt to justify nmax as the planned sample size for your proposed study.

You can also see how nmax value changes with the standardized focal effect Ξ³.

27.02.2026 19:18 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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In the published paper we detailed the steps to get the target sample size using our nmax equation.

Now with the Shiny app, you can easily obtain the target nmax value by simply sliding the inputs. No code or math equation needed! Everything you need, in one place.

27.02.2026 19:18 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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A few weeks ago you’ve heard about nmax as the insurance policy for sample size planning on @quantitude.bsky.social

Today we’re excited to launch the nmax Shiny app. Sample size planning with nmax can now be done in just a few button clicks!

πŸš€ yifeng-quant.shinyapps.io/nmax/

27.02.2026 19:18 β€” πŸ‘ 12    πŸ” 5    πŸ’¬ 1    πŸ“Œ 0

Thanks Tom! πŸ˜† We had a lot fun doing the project (after being β€œfired” for too many times due to budget cuts…)

25.02.2026 22:08 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Seeing our shadow tomorrow…

02.02.2026 12:56 β€” πŸ‘ 12    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0

So excited to share our new paper! πŸ₯³ We introduce a new method and a new perspective for sample size planning, to ensure statistical power despite the great uncertainty. It greatly simplifies the planning process too! Check it out! πŸ‘‰πŸΌ

19.08.2025 21:23 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Thanks Willa! I was missing Jiffy too!

28.02.2024 15:24 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
S5E17 Classification and Regression Trees with Yi Feng - Quantitude In this week's episode Greg and Patrick are honored to visit with Yi Feng, a quantitative methodologist at UCLA, as she helps them understand classification and regression tree analysis. She describes...

I’ve had a wonderful opportunity to be part of this fun (and hopefully) informative conversation on CART. Check it out! 🌟

www.buzzsprout.com/639103/14566...

27.02.2024 19:57 β€” πŸ‘ 7    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

Thanks Sirui!

09.01.2024 20:36 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I’m starting as a new Assistant Professor in Quantitative Psychology at UCLA. Thrilled to be teaching a course on SEM this winter quarter. Really looking forward to a full quarter of excitement diving into SEM with the students!

09.01.2024 19:52 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
Analysis of Complex Survey Data (from NCES) 2023 - Center for Integrated Latent Variable Research

ONLINE SHORT COURSE 🌟
Analysis of Complex Survey Data (from NCES)

Taught by Dr. Laura Stapleton @lauramstapleton.bsky.social, University of Maryland
November 9-10, 2023

umd-cilvr.catalog.instructure.com/courses/anal...

01.11.2023 20:10 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Oh sorry I must misread it didn’t I lol. My brain was toasted being getting stuck in the airport after a terrible delay since midnight! 😴

07.10.2023 21:11 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

lol Thanks Laura! The dressing code in the dissertation guidelines does sound very serious. πŸ˜‰

07.10.2023 15:34 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Thanks, Wes! 😊

06.10.2023 03:06 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Personal update: I’ve defended my dissertation!

05.10.2023 20:37 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

Hey #highered #iopsych network, our team has a job opening! We have a great group of colleagues and exciting work involving #data in #academia. I-Os, this may not be a traditional career path, but I'm happy to share re: my journey in this path if you're interested!
careers.purdue.edu/job/West-Laf...

29.09.2023 22:38 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

My department is hiring a tenure track assistant professor in clinical psychology! I am search committee chair! Help us find a new excellent colleague - please share!

uofl.wd1.myworkdayjobs.com/en-US/UofLCa...

29.09.2023 18:52 β€” πŸ‘ 33    πŸ” 27    πŸ’¬ 1    πŸ“Œ 1
Welcome! You are invited to join a meeting: QMMS information session . After registering, you will r... Welcome! You are invited to join a meeting: QMMS information session . After registering, you will receive a confirmation email about joining the meeting.

QUANTITATIVE METHODOLOGY GRADUATE PROGRAMS at
University of Maryland

Information session October 4, 2023, 12-1pm

Come to learn more about us! Please feel free to share with students who are interested! 😊

RSVP: umd.zoom.us/meeting/regi...

27.09.2023 16:53 β€” πŸ‘ 9    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0