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Professor Red Owl

@profredowl.bsky.social
695 followers 547 following 74 posts

🦉Retired Professor & Univ. VP Research Design, Methods & Statistics PhD, University of Georgia Reposts & likes ≠ endorsement #statistics #rstats #mixedmethods #researchmethods #PhDhelp #EdDhelp #decisionscience #judgmentanalysis PhDhelp.redowls.net

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Reposted by Professor Red Owl
Dr. Rob Wottawa @drwottawa.bsky.social · 29/09/2026
#rwmentoringmoments Terrific Tuesday! When giving feedback, be specific so they know why they are terrific!!!! robwottawa.com/podcast
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Reposted by Professor Red Owl
Kevin M. Kruse @kevinmkruse.bsky.social · 29/09/2026
When they get back in power, Democrats need to go all-in on higher education. We need a campaign of reinvestment in public universities across the country that makes the Morrill Land-Grant Act look like nothing by comparison *and* a GI Bill of Rights-style program of tuition grants.
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Reposted by Professor Red Owl
Grant McDermott @gmcd.bsky.social · 28/09/2026
𝐭𝐢𝐧𝐲𝐩𝐥𝐨𝐭 v0.8.0 now available on CRAN 🎉 grantmcdermott.com/tinyplot/ This is another big release: new plot types, finer facet & axis control, smarter handling of categorical data, and lots more. Same tiny footprint, though. Short highlight thread below 🧵 #rstats
Heatmap of the mtcars dataset, scaled within each column. Code: https://github.com/grantmcdermott/tinyplot/blob/main/vignettes/gallery_figs/heatmap-mtcars.RHistogram of New York temperatures, with bars coloured by their own x values. Code: plt(~ Temp | Temp, data = airquality, type = "hist", theme = "classic")Hexbin plot of 20,000 bivariate normal draws. Code: https://github.com/grantmcdermott/tinyplot/blob/main/vignettes/gallery_figs/hexbin.RStacked area plot of telephones in use by world region, 1956-1961. Code: plt(WorldPhones[-1, ], type = type_area(stack = TRUE, byord = "end"))
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Troy Jackson @troyjackson207.bsky.social · 27/09/2026
We're leading Susan Collins in another poll despite the millions of dollars Elon and Republican dark money groups are dumping into this race. They can spend all they want, but they can't convince Mainers Senator Collins is on the side of working people.
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Reposted by Professor Red Owl
Jan Broder Engler @jbengler.de · 24/09/2026
This is how you can add normal data ellipses in #tidyplots 🐣 #rstats #dataviz #phd
library(tidyplots)

pca |>
  tidyplot(x = pc1, y = pc2, color = group) |>
  add_data_points() |>
  add_ellipse()
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Reposted by Professor Red Owl
Dr. Rob Wottawa @drwottawa.bsky.social · 23/09/2026
#rwmentoringmoments Work Together Wednesday! More hands makes the work lighter! Working towards a common goal together enhances the team’s effectiveness! robwottawa.com/podcast
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Reposted by Professor Red Owl
Artologica aka Michele Banks @artologica.net · 23/09/2026
There it is 😡
Nature, which previously reported on NSF’s grants shortfall, said it can “be attributed mainly” to the agency keeping more than $1 billion in an account, much of which is for the White House’s Grand Research Challenges project, which is meant to support specific fields, including artificial intelligence. The project was mentioned in one line in a Sept. 10 NSF memo: “In the coming weeks and months, NSF will announce a series of Grand Research Challenges to take thesis-driven bets that stand to unlock new frontiers of S&T [science and technology].”
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Dr. Rob Wottawa @drwottawa.bsky.social · 21/09/2026
#rwmentoringmoments Episode 23 Anniversary Episode where Dr. Jason Stanton flips the script and hosts to ask Rob the questions. Available on #spotify #applepodcasts #amazonmusic And my website: robwottawa.com/podcast
robwottawa.com
Mentoring Moments with Dr. Rob Wottawa
Build effective mentoring programs for teachers and leaders today!
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Reposted by Professor Red Owl
Allison Gill @muellershewrote.com · 21/09/2026
NEW: The Trump Administration is planning to slash human subject research regulations by redefining informed consent. My latest: www.muellershewrote.com/p/trump-plan...
muellershewrote.com
Trump Plans to Redefine Informed Consent for Human Research Subjects
The Department of Health and Human Services has noticed a forthcoming rule on the OMB regulatory information site to redefine what undue influence means for vulnerable human research subjects
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Reposted by Professor Red Owl
Dr. Rob Wottawa @drwottawa.bsky.social · 16/09/2026
#rwmentoringmoments Winning Wednesday! If we have momentum and traction we should see wins. Celebrate every win, especially the small ones!!! Small things=BIG difference!!! robwottawa.com/podcast
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Reposted by Professor Red Owl
AG Rob Bonta @agrobbonta.oag.ca.gov · 15/09/2026
After losing in the district & appellate courts, the Trump Admin has lost at the Supreme Court. Today’s decision is a victory for our democracy and a powerful affirmation of the rule of law. We’ll remain vigilant in safeguarding our elections, & urge every eligible voter to make their voice heard.
AG BONTA SECURES SUPREME COURT VICTORY BLOCKING TRUMP ADMIN'S ATTEMPT TO RESTRICT MAIL VOTING
"The stakes in this litigation could not have been higher. Voting is the fundamental right from which all other rights flow, and all 50 states allow ballots to be cast by mail in some form.
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Dr. Rob Wottawa @drwottawa.bsky.social · 13/09/2026
🎙️ NEW EPISODE! #rwmentoringmoments with Megan Diede — instructional strategy expert & founder of IntegratED. Avail 9/14 Ep. 22. “The most powerful instruction does not come from a script — it comes from intentional design.” 🎧 #spotify #applepodcasts #amazonmusic 🔗 robwottawa.com/podcast
robwottawa.com
Mentoring Moments with Dr. Rob Wottawa
Build effective mentoring programs for teachers and leaders today!
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Reposted by Professor Red Owl
Costa Samaras @costasamaras.com · 13/09/2026
This will be bad for: - the students - the research progress - the universities - the towns the universities are in - the companies hiring students - the states the universities are in - the national economy - national security - the country - the world
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Social Security Works @socialsecurityworks.org · 10/09/2026
The problem isn't boomers. The problem isn't immigrants. The Social Security actuaries say that there's one cause of the trust fund emptying 30 years sooner than it should – and it's the billionaires who do not pay in on all of their income. SOCIAL SECURITY HAS A BILLIONAIRE PROBLEM.
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Dr. Rob Wottawa @drwottawa.bsky.social · 10/09/2026
#rwmentoringmoments Thorough Thursday! After you plan, be sure the execution is thorough. Take the time to review before hitting send. robwottawa.com/podcast
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Reposted by Professor Red Owl
Jon Cooper @joncooper-us.bsky.social · 04/09/2026
👇👇
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Michael Friendly @datavisfriendly.bsky.social · 04/09/2026
Long awaited: pretty (and funky) arrows in #rstats
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Reposted by Professor Red Owl
Dr. Rob Wottawa @drwottawa.bsky.social · 03/09/2026
#rwmentoringmoments Threshold Thursday!!! Try something new! Take a risk!! If you on the threshold, take the leap to try something new!! And if we FAIL, we can learn and pivot!!! #growthmindset robwottawa.com/podcast
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Reposted by Professor Red Owl
Julia M. Rohrer @dingdingpeng.the100.ci · 03/09/2026
Very few people know that this is how it all began @celestialsem.bsky.social
Sewall Wright's guinea pig path diagram, but the guinea pigs are wearing space helmets and there's a space background
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Andrew Gelman et al. @statmodeling.bsky.social · 29/08/2026
“Why did ANOVA fall out of fashion?” statmodeling.stat.columbia.edu/2026/08/29/w...
statmodeling.stat.columbia.edu
“Why did ANOVA fall out of fashion?” | Statistical Modeling, Causal Inference, and Social Science
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Tressie McMillan Cottom @tressiemcphd.bsky.social · 22/08/2026
I remember when many of us hypothesized this during the MOOC IP grab. It sounded insane. Now:
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Jan Broder Engler @jbengler.de · 22/08/2026
This is how you can do stacked bar charts in #tidyplots 🐝 #rstats #dataviz #phd
library(tidyplots)

energy |> 
  tidyplot(x = year, y = energy, color = energy_type) |> 
  add_barstack_absolute()
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Reposted by Professor Red Owl
How-To Geek @howtogeek.bsky.social · 22/08/2026
This open-source app turned my old webcam into a free document scanner
ift.tt
This open-source app turned my old webcam into a free document scanner
Your old webcam can replace an expensive document scanner—here's how.
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Reposted by Professor Red Owl
Social Security Works @socialsecurityworks.org · 19/08/2026
Ken Paxton wants to hand your hard-earned benefits to Wall Street millionaires and billionaires. HANDS OFF OUR SOCIAL SECURITY.
A graphic with a photo of Ken Paxton. The text says, "NEARLY FIVE MILLION TEXANS RELY ON SOCIAL SECURITY. KEN PAXTON'S TEAM WANTS TO HAND THOSE HARD-EARNED BENEFITS OVER TO WALL STREET. HANDS OFF!"
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Prof. Feynman @proffeynman.bsky.social · 19/08/2026
The more you teach, the better you learn. Teaching is a powerful tool for learning.
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Professor Amanda Sturgill @drsturg.bsky.social · 18/08/2026
"But the educated citizen knows how much more there is to know. He knows that 'knowledge is power,' more so today than ever before. He knows that only an educated and informed people will be a free people, that the ignorance of one voter in a democracy impairs the security of all..." --JFK
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Jen Taub @jentaub.bsky.social · 17/08/2026
“A single-payer universal health care system could cover every American, save more than 100,000 lives a year, and still cost $1 trillion less than the system it would replace, according to a new preprint study led by researchers at the Yale School of Public Health.” ysph.yale.edu/news-article...
ysph.yale.edu
Universal Health Coverage Could Save $1 Trillion and 114,000 Lives Every Year, Yale Study Projects
A single-payer universal health care system could cover every American, save more than 100,000 lives a year, and still cost $1 trillion less than the system it
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Paul Hünermund @p-hunermund.com · 17/08/2026
➕➕➕ New Working Paper ➕➕➕ Fixed effects are the workhorse of management and economics for dealing with unobserved confounding. But what if they themselves create bias? 😲 A short thread 🧵 1/6
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Dr. Rob Wottawa @drwottawa.bsky.social · 17/08/2026
Thank you Dr. Teresa Grossane for your very kind review of the #rwmentoringmoments podcast and Ep. 19 reflection 4 posted. Please listen, follow, subscribe, and review! Available on #spotify #applepodcasts #amazonmusic And my website: robwottawa.com/podcast
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Reposted by Professor Red Owl
Robert Kelchen @robertkelchen.com · 16/08/2026
The Department of Education is rescinding some credits given by the Biden administration for qualifying payments toward Public Service Loan Forgiveness, adding another round of chaos to an already chaotic program.
politico.com
The path to student loan forgiveness just got longer
Trump’s Education Department is clawing back credit toward loan forgiveness due to errors it said were made during the Biden administration.
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Reposted by Professor Red Owl
Robert Reich @rbreich.bsky.social · 16/08/2026
Social Security has been America’s most effective anti-poverty program since 1935. Last year, it lifted 23.5 million people out of poverty, including 16.5 million seniors. Remember this when Republican leaders suggest raising the retirement age or cutting your benefits.
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Jan Broder Engler @jbengler.de · 15/08/2026
This is how you can save intermediate stages of #tidyplots 🦊 #rstats #dataviz #phd
library(tidyplots)

study |> 
  tidyplot(x = treatment, y = score, color = treatment) |> 
  add_mean_dash() |> 
  save_plot("stage_1.pdf") |>
  add_sem_errorbar() |> 
  save_plot("stage_2.pdf") |> 
  add_data_points_beeswarm() |> 
  save_plot("stage_3.pdf")
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Reposted by Professor Red Owl
Social Security Works @socialsecurityworks.org · 05/08/2026
The Republican "solution" for Social Security is an unaccountable commission that rubber stamps benefit cuts like increasing the retirement age. Hell no! @wyden.senate.gov
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Jeffrey Wooldridge @jmwooldridge.bsky.social · 04/08/2026
Well done, Chao. It's a fact that the consistency of the Poisson quasi-MLE uses nothing other than correct specification of the conditional mean -- which is almost always taken to be exponential. Literally nothing else about the Poisson distribution needs to hold.
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Reposted by Professor Red Owl
Chao Wang @excel-wang.bsky.social · 31/07/2026
I’m not sure about that. I think @jmwooldridge.bsky.social demonstrated Poisson regression doesn’t have any distribution assumptions.
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Adam L @adam-lg.bsky.social · 04/08/2026
"Correcting Bias When Using Latent Regressors" - looks like a useful paper! arxiv: arxiv.org/abs/2507.22218 code: github.com/cjerzak/lpme... #statssky 📈📉
 Many core concepts in political science are latent and therefore can only be measured with error. Measurement error in a predictor attenuates slope coefficient estimates in regression, often biasing them toward zero. We show that widely used strategies for correcting attenuation bias -- including instrumental variables and the method of composition -- are themselves biased when applied to latent regressors, often performing worse than simple regression ignoring the measurement error altogether. We derive a correlation-based correction using split-sample measurement strategies. Rather than assuming a particular estimation strategy for the latent trait, our approach is modular and can be easily deployed with a wide variety of latent variable measurement strategies, including additive score, factor, or machine learning models; it requires no joint estimation while yielding consistent slopes under standard assumptions. Simulations and applications show stronger relationships after our correction, sometimes by as much as 50%. Open-source software implements the procedure. Results underscore that latent predictors demand tailored error correction; otherwise, conventional practice can exacerbate bias
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Reposted by Professor Red Owl
Claus Wilke @clauswilke.com · 02/08/2026
One of my pet peeves: People are obsessed with seeing/plotting error bars while also being confused about what they should represent. blog.genesmindsmachines.com/p/the-error-...
blog.genesmindsmachines.com
The error bar cargo cult
You don't need to understand error bars. You just need to draw them.
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PBS News @pbsnews.org · 02/08/2026
Americans’ Social Security benefits will have to be cut by roughly a quarter in six years due to depleted funds, according to a June report from the Social Security Board of Trustees. That’s months sooner than the group had estimated in 2025. to.pbs.org/4f39DL0
to.pbs.org
Your Social Security benefits could be cut by a quarter in 2032. Here’s what to know
Americans’ Social Security benefits will have to be cut by roughly a quarter in six years due to depleted funds, according to a June 9 report from the Social Security Board of Trustees. That’s months ...
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Jon Cooper @joncooper-us.bsky.social · 02/08/2026
Medicare and Social Security have long been the “third rail of politics.” But CMS just announced it’s ending a subsidy that stabilizes premiums for Medicare Part D drug plans — covering nearly 25 million people. The timing? Open enrollment starts Oct. 15… less than three weeks before the midterms.
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Morgan J Freeman @mjfree.bsky.social · 30/07/2026
Republicans alone slashed Medicare with zero Democratic votes and delayed the damage until after the election. A Democratic Congress will restore the cuts, expand coverage, and cap prescription drug costs for seniors. Vote blue. #RepublicansCutHealthcare
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Chronicle of Higher Education @chronicle.com · 29/07/2026
Is there any part of teaching that causes more stress than grading? We talk to professors who say their alternative formats make the process of assessing student work clearer and more meaningful. chroni.cl/4vVUdgW
chronicle.com
Is It Time to Change How You Grade?
Points-based systems are the coin of the realm, but other approaches are drawing interest.
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Dr. Rob Wottawa @drwottawa.bsky.social · 29/07/2026
#rwmentoringmoments Episode 18 with first-year teacher Julie Cooke available 8/3 Julie shares her thoughts after completing year 1. Available on #spotify #applepodcasts #amazonmusic And my website: robwottawa.com/podcast
robwottawa.com
Mentoring Moments with Dr. Rob Wottawa
Build effective mentoring programs for teachers and leaders today!
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Reposted by Professor Red Owl
Frank Harrell @f2harrell.bsky.social · 28/07/2026
Another new blog article, elaborating on ordinal regression within the cumulative probability model family. One general model contains an amazing array of special cases used all the time. Do we need to keep teaching special cases&assuming so much? www.fharrell.com/post/cpm/ #Statistics #StatsSky
fharrell.com
The Unifying Capabilities of Cumulative Probability Semiparametric Models – Statistical Thinking
Ordinal semiparametric regression models in the cumulative probability model (CPM) family, of which proportional odds, proportional hazards, and probit regression are examples, contain virtually all r...
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Inside Higher Ed @insidehighered.com · 28/07/2026
New Options Emerge for Disenrolled Howard Students @sunyofficial.bsky.social, @cuny.edu, and University of the District of Columbia are offering support and enrollment opportunities to those affected by Howard’s decision to unenroll 502 incoming students. bit.ly/3RGka67 #EDUSky #HigherEd
The Howard University Interdisciplinary Research Building
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Joshua Bay @joshuabay.bsky.social · 28/07/2026
My latest for @insidehighered.com: SUNY, CUNY and the University of the District of Columbia are offering support and enrollment opportunities to those affected by Howard’s decision to unenroll 502 incoming students
insidehighered.com
New Options Emerge for Howard Students
SUNY, CUNY and U of the District of Columbia are offering support and enrollment opportunities to those affected by Howard’s decision to unenroll 502 incoming students.
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Reposted by Professor Red Owl
Mother Jones @motherjones.com · 28/07/2026
Police documents show a DHS task force officer tracing protesters' cars, identities, and whereabouts without alleging any wrongdoing.
motherjones.com
Records reveal how Homeland Security agents surveilled ICE protesters
Spokane police documents show a DHS task force officer tracing protesters' cars, identities, and whereabouts without alleging any wrongdoing.
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Jan Broder Engler @jbengler.de · 27/07/2026
This is how you can adjust colors in #tidyplots 🌈 #rstats #dataviz #phd
library(tidyplots)
library(patchwork)

p1 <- 
  energy |> 
  tidyplot(x = year, y = energy, color = energy_type) |> 
  add_barstack_absolute() |> 
  adjust_colors(colors_discrete_apple)

p2 <- p1 |> adjust_colors(colors_discrete_metro)

wrap_plots(p1, p2, ncol = 1)
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Reposted by Professor Red Owl
Aaron Parnas @aaronparnas.bsky.social · 25/07/2026
www.nytimes.com/2026/07/24/a...
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Biggie @biggienotsmalls.bsky.social · 23/07/2026
Trump does nothing good for Americans yet MAGA idiots still praise the man.....make it make sense....
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AlternativeTo @alternativeto.net · 23/07/2026
OBS Studio 32.2 has been released, featuring an easier way to add new sources, a new filter to compose SDR into HDR, delete hotkey on macOS, dynamic bitrate support for multitrack videos, better Apple Silicon compatibility, and much more. alternativeto.net/news/2026/7...
OBS Studio logo displayed prominently against a blue background, indicating a focus on broadcasting and streaming software updates.
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