Kristopher J. Preacher

Feel free to share your own heartfelt quantitative sentiments as we look ahead to Valentine’s Day…

We're excited to announce the launch of Vanderbilt’s M.S. in Quantitative Methods & Data Analytics for Human Behavior. More info. about our 17-month program is in today’s news article about our QMDA M.S. program. Come learn with us! peabody.vanderbilt.edu/academics/mast… news.vanderbilt.edu/2025/11/11/van…

Come learn Multilevel SEM with me! Statistical Horizons online workshop, May 13-15 and 18-20, 2026. statisticalhorizons.com/seminars/multi…

@letsnotbehayest I am always very careful to pronounce 'factanal' correctly when teaching factor analysis.

Some R package names, I swear ...

@GolinoHudson The secret is obscene levels of self-citation.

Today, I reached a very important milestone in my career. My work needs only 138,306 more citations to pass Kristopher Preacher's level of goodness. I only need 807 more years...

Join @KristopherJPre1 for Multilevel Modeling: A Second Course on Oct. 14 - Nov. 11. Learn methods to handle your complex designs & modeling objectives using a variety of extensions to multilevel modeling, including multilevel structural equation modeling (MSEM).

@wesbonifay Bud loved his job so much he would say he couldn't believe they paid him to do what he did. I have tried to emulate him for my entire career, and will always, always fall short. Such a wonderful human being, and such a loss for the rest of us.

@schotz "randomly"

Just got randomly selected for post-tenure review! Gonna have to try and remember what a "binder" is and what goes in it.

@quantitudepod Calcatraz LISRAEL SUDAAN Berlinear regression SASkatchewan North Carosplina Bavariance

STAT TRAVEL DESTINATION! For our next Quantitude summer fun contest, what would be a quant/stat-sounding travel destination? (Groan-worthy puns always welcome.) (Please post by Thursday.)

@quantitudepod The Cape of Good Hope it converges before I graduate Djiboutstrap (or maybe Beirutstrap?) Split-halfganistan Wisconcentrality French Quartile (that's in Mu Orleans, on the Missingippi River)

@GolinoHudson Thank you Hudson. What a great loss. John was the poet laureate of Quantitative Psychology -- a great wit, creative genius, inspiring writer, and a wonderful person. He will be missed by many.

Today John Nesselroade and I were supposed to have a fun afternoon with Brazilian coffee and cheesebread, and lots of laughter. When I was about to pick him up, he did not answer to the phone. His wife, Carolyn, did. And she shared the sad news. John has passed away. He was not just one of the founding fathers of Quantitative Psychology, and a living legend. He was a dear friend to a countless of people, a caring and very kind individual. And, a very, very funny person. In 2007, with the passing of Paul Baltes, he wrote a letter to celebrate his life and the LIFE academy, that Paul created and shaped. Here's my favorite part of the letter: "Finally, a few words of advice about life that obviously do come from a philosopher: "In the future, if life should give you lemons, make lemonade. Then, find someone to whom life has given Jack Daniels- blend your assets and have a party! Paul would approve -as long as you finish that manuscript first. But-hey! Thats life!" He will be missed by many, and is survived by his wife and children. His work and legacy will keep impacting our field for generations to come. Lastly, let me share a personal story. In my second year as a professor at the University of Virginia I wrote an email to John. I told him I wanted to do my PhD with him when I was applying to PhD programs (I was also interested in studying with Denny Borsboom). But I decided not to apply. He did not know that, and he replied saying that he would not take me as a graduate student because he rather have me as a colleague in the department so we could work for a longer period of time. But, he said, I was '30 years late'. I will miss him forever. And I regret not enjoying more his presence when I had the chance.

@quantitudepod GAMMlet

CLASSIC QUANT LITERATURE! Change the title of a classic piece of literature to be about stat/quantitative methods. (Groan-worthy puns welcome.) (Please post by Thursday.)

@quantitudepod The Catcher in the Riemannian Manifold

@quantitudepod No Country for Old Min()

@quantitudepod The Grapes of Rasch

Looking for more sophisticated methods to handle your complex designs and modeling objectives? Learn cutting edge Multilevel Structural Equation Modeling (MSEM) and other multilevel modeling extensions with @KristopherJPre1 on May 15-17 & 20-22.

@FredOswald I love this, and it's roughly how I explain logistic regression in my classes. Why do people still report odds ratios when plotting p(y=1) is an option??

it's logistic regression week in my class - a fun week!

@AmandaKMontoya One of my favorite articles (I have many): psycnet.apa.org/record/1994-00…

Half the consulting emails I get are “my interaction wasn’t significant but how do I still claim there is support for my hypothesis”

@AmandaKMontoya "There has never been a better time for psychology to reinvest in students' quantitative training." Yep.

For the advisors in the back.

@letsnotbehayest "...we would also ask reviewers to comment on any major methodological limitations the authors should also consider." ...Can this include comments like "The authors should elaborate at length on their statistical methods and not relegate them to footnotes and online appendices"?

Tonight in “my inbox never asked for this”: new JPSP submission guidelines. And can I say *finally.* I hate it when complex, detailed justification of statistical methods gets in the way of the important stuff … like “underlying ideas that capture the interest/imagination.”🙃