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cghlewis.bsky.social
Crystal Lewis
@cghlewis.bsky.social
5.6K followers 1.7K following 1.4K posts
Research Data Management Consultant | cghlewis.com

Co-organizer @r-ladies-stl.bsky.social‬
Co-organizer POWER Data Management Hub | https://osf.io/ap3tk/

Author of DMLSER: https://datamgmtinedresearch.com/
RDM Weekly: https://rdmweekly.substack.com/
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cghlewis.bsky.social
Crystal Lewis @cghlewis.bsky.social · Oct 21
Re-introduction for new followers!
Hello! 👋
I am currently a freelance research data management consultant. I also co-organize R-Ladies St. Louis. I mostly post about data management and #rstats data wrangling tips. I also recently wrote this book.
datamgmtinedresearch.com
Welcome | Data Management in Large-Scale Education Research
This is the in-progress version of Data Management in Large-Scale Education Research.
datamgmtinedresearch.com
cghlewis.bsky.social
Is someone trolling my data?
November 26, 2025 at 3:04 AM
cghlewis.bsky.social
Staying curious has saved me from bad data more times than I can count. I always have a validation plan when wrangling data, but it's still always possible to miss something. Time again, the unplanned "Hmmm, I wonder if I should also check this" moment, illuminates a new unexpected issue.
November 25, 2025 at 5:17 PM
cghlewis.bsky.social
RDM Weekly Issue 23 is out! 📬

➡️ QA Without Spreadsheets @statsrhian.bsky.social
➡️ Libraries and Open Science: Overlaps and Gaps with the Research Community @cos.io
➡️ Quality Dimensions and Evaluation Framework for Machine-Actionable DMPs
and more!

rdmweekly.substack.com/p/rdm-weekly...
RDM Weekly - Issue 023
A weekly roundup of Research Data Management resources.
rdmweekly.substack.com
November 25, 2025 at 2:13 PM
cghlewis.bsky.social
My cousin and his wife made this board game. I’m so amazed and proud of them. If you like quick, fun games with really sweet art, definitely check their game out!

www.thegamecrafter.com/games/nautic...
November 24, 2025 at 2:30 PM
cghlewis.bsky.social
If you want your work to be reproducible, you have to remember that others don't have the insider knowledge you have. You have to be explicit.

This morning I was able to recreate a file made by someone else because they explicitly documented their definitions, calculations, and their assumptions. 🫶
November 24, 2025 at 2:09 PM
cghlewis.bsky.social
😍
A list of files consistently named
November 21, 2025 at 8:36 PM
Reposted by Crystal Lewis
tladeras.bsky.social
Trying out #Posit Databot on a dataset I know pretty well (NHANES). I do like how it helps me in my wondering about the data. It's been a while since I've recorded a video, so be gentle. #datascience #R

youtu.be/qs2GozYUUOk (Part 1)
Databot on NHANES
YouTube video by Data Snacks
youtu.be
November 21, 2025 at 6:13 PM
Reposted by Crystal Lewis
antoinevernet.com
Why is this piece of code that was fine now throwing an error? Why would it do that on a Friday afternoon? #rstats
November 21, 2025 at 4:31 PM
Reposted by Crystal Lewis
kaitlynmwerner.bsky.social
The Stanford Psychophysiology Lab (PI: James Gross) is hiring a new lab manager! If you have a superstar student interested in emotion, please share this ad with them! Applications are reviewed on a rolling basis.

Job ad: careersearch.stanford.edu/jobs/social-...

#psychjobs
Social Science Research Coordinator in School of Humanities and Sciences, Stanford, California, United States
The Department of Psychology’s Psychophysiology Lab is seeking a full-time Social Science Research Coordinator (RC) position. The RC will be an...
careersearch.stanford.edu
November 20, 2025 at 8:18 PM
Reposted by Crystal Lewis
simonpcouch.com
Do you use Positron?😉
November 20, 2025 at 4:20 PM
cghlewis.bsky.social
Yes, ChatGPT can help you write #rstats code, but so can this old Wiki I created with example code used for common data wrangling needs. Who knows, you might find some gems in there.🤷‍♀️

github.com/Cghlewis/dat...
Home
Functions used for wrangling education research data - Cghlewis/data-wrangling-functions
github.com
November 20, 2025 at 3:18 PM
cghlewis.bsky.social
I make a Data Sources Catalog for every project I work with and I can't tell you how often the project team refers to this document to remember what measures are being collected and when. I highly recommend summarizing your plan in a simple format like this.

datamgmtinedresearch.com/dmp#dmp-cata...
November 19, 2025 at 2:49 AM
Reposted by Crystal Lewis
wesbonifay.bsky.social
Announcement: I am excited to be co-editing (with Li Cai) an upcoming Special Issue of the Journal of Mathematical Psychology on "Advances in Statistical Model Evaluation." Proposals due Feb 1. Details: www.sciencedirect.com/special-issu...

Please repost!

#quantpsych #mathpsych #philsci #statsky
Advances in Statistical Model Evaluation Submission deadline: 31 December 2026 The Special Issue accepts theoretical, methodological, applied, and philosophically oriented research on frequentist, Bayesian, and information-theoretic advances in statistical model evaluation. Topics of interest for this call for papers include but are not restricted to: • Methodological advances in fit assessment, parametric bootstrapping, cross-validation, and/or other frequentist model evaluation methods • Methodological advances in prior and/or posterior predictive model checking, specification and use of informed priors, Bayes factors, and/or other Bayesian model evaluation • Methodological advances in minimum description length, normalized maximum likelihood, and/or other information-theoretic model evaluation methods • Practical applications and tutorials of advanced model evaluation methods • Philosophy of science issues underlying statistical model evaluation • Critiques/perspectives/commentaries on statistical model evaluation
November 18, 2025 at 6:18 PM
cghlewis.bsky.social
Issue 22 of RDM Weekly is out! 📬

- FAIR Data Cheatsheet @w-u-r.bsky.social
- Open Research: Examples of Good Practice, and Resources Across Disciplines @ukrepro.bsky.social
- 3 Myths About Open Science That Just Won’t Die @syeducation.bsky.social
and more!

rdmweekly.substack.com/p/rdm-weekly...
RDM Weekly - Issue 022
A weekly roundup of Research Data Management resources.
rdmweekly.substack.com
November 18, 2025 at 2:22 PM
Reposted by Crystal Lewis
r-ladies-stl.bsky.social
Hello #rstats! 👋 Do you have an #rstats package or skill or strategy you love and would be willing to share with the @rladies.org community? We are looking 👀 for a couple more speakers 🔊 for the 2025–2026 R-Ladies St. Louis season. Reply here and we will contact you to find a date! 💜 💜 💜
Meme that says "add a small function to working code" "everything completely breaks" "remove all your changes" "code is still broken"
November 17, 2025 at 11:06 PM
Reposted by Crystal Lewis
ukdataservice.bsky.social
⏰ One week to go until our Introduction to anonymisation techniques for social sciences research data workshop!

For more information and to book a place, please follow the link below:

📅 24 November 2025
⏰ 10:00-11:30
📍 Online
🧷 ukdataservice.ac.uk/events/intro...
Introduction to anonymisation techniques for social sciences research data
November 17, 2025 at 4:02 PM
Reposted by Crystal Lewis
andrew.heiss.phd
I recently discovered Conventional Comments (conventionalcomments.org) for providing a pseudo-standard set of labels for feedback and just tried it for an article review and it was really helpful to specify issues vs. thoughts vs. suggestions, etc. Hopefully it's helpful for the authors too!
We strongly suggest using the following labels: praise: Praises highlight something positive. Try to leave at least one of these comments per review. Do not leave false praise (which can actually be damaging). Do look for something to sincerely praise. nitpick: Nitpicks are trivial preference-based requests. These should be non-blocking by nature. suggestion: Suggestions propose improvements to the current subject. It’s important to be explicit and clear on what is being suggested and why it is an improvement. Consider using patches and the blocking or non-blocking decorations to further communicate your intent. issue: Issues highlight specific problems with the subject under review. These problems can be user-facing or behind the scenes. It is strongly recommended to pair this comment with a suggestion. If you are not sure if a problem exists or not, consider leaving a question. todo: TODO’s are small, trivial, but necessary changes. Distinguishing todo comments from issues: or suggestions: helps direct the reader’s attention to comments requiring more involvement. question: Questions are appropriate if you have a potential concern but are not quite sure if it’s relevant or not. Asking the author for clarification or investigation can lead to a quick resolution. thought: Thoughts represent an idea that popped up from reviewing. These comments are non-blocking by nature, but they are extremely valuable and can lead to more focused initiatives and mentoring opportunities. chore: Chores are simple tasks that must be done before the subject can be “officially” accepted. Usually, these comments reference some common process. Try to leave a link to the process description so that the reader knows how to resolve the chore. note: Notes are always non-blocking and simply highlight something the reader should take note of.
November 17, 2025 at 3:52 PM
cghlewis.bsky.social
Game Nite! MTG time.
a cat laying on a table playing a game of magic the gathering with cards on it
ALT: a cat laying on a table playing a game of magic the gathering with cards on it
media.tenor.com
November 16, 2025 at 12:43 AM
Reposted by Crystal Lewis
smurph.bsky.social
Time once again to be linking to @cghlewis.bsky.social when I do my winter class that involves data analysis
November 15, 2025 at 5:12 PM
cghlewis.bsky.social
Long overdue shout out for @libbyheeren.bsky.social! Recently we had some issues at one of our meetups, and being the meetup guru, Libby didn’t hesitate for a second to reach out to offer helpful advice and even make a recording of tips for future meetups for myself and co-organizers. 🙏 ❤️
November 15, 2025 at 2:47 AM
cghlewis.bsky.social
Great resources in this list!
And I'd like to add that Data Management in Large-Scale Education Research (an open access book that also addresses data management specifically for researchers) is another good one to check out! 😊
datamgmtinedresearch.com
November 14, 2025 at 9:06 PM
Reposted by Crystal Lewis
damiepak.bsky.social
What's up everyone! I'm doing a Workshop for Ukraine in #rstats, I finally finished up a flyer. We'll be working on the Lotka-Volterra predator prey model. Just doing some math, coding, and making some nice visualizations. Some thoughts (1/n)

#academicsky
November 14, 2025 at 5:56 PM
cghlewis.bsky.social
A Friday morning reminder to always review your raw data before you start using it (check variable types, counts, summary stats, etc.) so that you can catch fun things like rows that have been shifted. 😉
November 14, 2025 at 2:46 PM
cghlewis.bsky.social
A picture of a woman reviewing a sketchpad that shows a data dictionary. With the text "The documentation we always hope we'll see when we open a repository."
November 14, 2025 at 12:27 AM
Reposted by Crystal Lewis
jennajordan.me
I've got a question for the #medlibs...

I'm currently getting a crash course in medical claims data courtesy of Out of Pocket, and in learning about this claims process - the shape of the data via the forms, the rules that need to followed between different code systems - I'm left with the thought
November 13, 2025 at 1:09 AM