Chris Schatschneider @schotz.bsky.social · 29/09/2026Yep - I had a number of panic emails yesterday asking for recertification of biosketches. Good times. 011
Chris Schatschneider @schotz.bsky.social · 06/06/2026There’s a good amount of racism sprinkled in too 040
Chris Schatschneider @schotz.bsky.social · 19/05/2026Oh it does! For me it’s about three hours of prep for one hour of lecture. And that’s in the in-class lecturing! It’s probably longer for developing an online course. 210
Chris Schatschneider @schotz.bsky.social · 18/03/2026“American Pie” sung by the guards at Gitmo karaoke style 000
Chris Schatschneider @schotz.bsky.social · 06/03/2026I’ve never turned mine. I like to keep people guessing. When will I reply? In 5 minutes? A week? It’s unknowable. 110
Chris Schatschneider @schotz.bsky.social · 06/03/2026People still give you paper copies?!? That’s kinda awesome 110
Chris Schatschneider @schotz.bsky.social · 05/03/2026The main analysis is mean change on the treated? The control group feels slighted. 110
Chris Schatschneider @schotz.bsky.social · 04/03/2026yes this is a classic! My favorite part is when the manager says he gets "better regressions" when he does this. Oh I bet he does! 140
Chris Schatschneider @schotz.bsky.social · 27/02/2026Our faculty lounge also has a microwave and full sized fridge. We cleverly named it the mail room to hide it from state officials 020
Chris Schatschneider @schotz.bsky.social · 27/02/2026I told a story at my lab meeting today about the time I met John Cougar Mellencamp…and none of my grad students had heard of him. I must be nearing the end of my days… 120
Chris Schatschneider @schotz.bsky.social · 20/02/2026It feels like all of our graduate students are defending their dissertations this spring...and I am on all of their committees. 151
Chris Schatschneider @schotz.bsky.social · 17/02/2026That's it! Makes sense to me now. Thanks - hope you've been well! 020
Chris Schatschneider @schotz.bsky.social · 17/02/2026In IRT modeling, shouldn't the 1PL model have one more degree of freedom than the Rasch model? In the 1PL I am estimating a common discrimination parameter where the Rasch model sets it to 1. But the mirt package in R is saying they have the same number of parameters. 312
Chris Schatschneider @schotz.bsky.social · 15/02/2026But not so sad that it would stop her from eating them :) 010
Chris Schatschneider @schotz.bsky.social · 14/02/2026It was and continues to be absolutely brutal for Ed Science researchers 010
Chris Schatschneider @schotz.bsky.social · 08/12/2025I’m pretty sure you want to keep that under your hat until AFTER they hire you :) 010
Chris Schatschneider @schotz.bsky.social · 04/09/2025Under Pressure duet. I thought the David Bowie parts would be easier to sing. They were not. 120
Chris Schatschneider @schotz.bsky.social · 08/08/2025OK. I guess I'll whip up some simulations to see how much violating the assumption of equilibrium and stationarity has on the model. 020
Chris Schatschneider @schotz.bsky.social · 07/08/2025Ok. I've convinced myself that the RI-CLPM model is not appropriate for modeling constructs that are systematically growing/changing over time. These data don't meet the assumptions of the model. But I keep seeing it getting recommended for developmental studies. Am I missing something? 110
Chris Schatschneider @schotz.bsky.social · 07/08/2025I love springing this fact on the first year grad students in my class just to see their reaction. 020
Chris Schatschneider @schotz.bsky.social · 25/07/2025Genius. If I could convince people of the utility of Degrees of Non-Freedom I've got a number of under-identified models that I think would work great. 010
Chris Schatschneider @schotz.bsky.social · 25/07/2025I may not know much, but I know a model with -5 degrees of freedom is not going to fly. 1100
Chris Schatschneider @schotz.bsky.social · 18/04/2025Thanks Jens! I appreciate that. It was a crazy surreal experience. 030
Chris Schatschneider @schotz.bsky.social · 18/04/2025I was teaching when the active shooter warning came. I can tell you the one thing I was not prepared for. Trying to determine if we should stay in the classroom and start building barricades vs. evacuating the classroom for a more defensible position. Was it safe to let my students in the hallway?? 3131
Chris Schatschneider @schotz.bsky.social · 12/03/2025Everything outside is just covered in a fine yellow blanket of allergens… 100
Chris Schatschneider @schotz.bsky.social · 27/02/2025I hope her neighbors are ashamed of themselves. 200
Reposted by Chris SchatschneiderDan McNeish @dmcneish.bsky.social · 29/01/2025Next week, I'm teaching a 3-day workshop on DSEM for intensive longitudinal data using Mplus and registration is still open -- more information about the topics and registration can be found here! statisticalhorizons.com/seminars/dyn...statisticalhorizons.comDynamic Structural Equation Modeling Seminar | Statistics CourseThis online course by Dan McNeish Ph.D., introduces both foundational and intermediate topics in DSEM. 01512
Chris Schatschneider @schotz.bsky.social · 20/12/2024Well the bottom picture makes it easier to see the light reflecting off the tubes from the top picture 110
Chris Schatschneider @schotz.bsky.social · 13/12/2024Are they even allowed to sell a house in that condition?!! Yikes 000
Reposted by Chris SchatschneiderCrystal Lewis @cghlewis.bsky.social · 21/11/2024Loving this paper, Getting Started with Data Sharing: Advice for Researchers in Education! #datamgmt #edresearch #datasharing @cmwhite.bsky.social @sestrera.bsky.social @schotz.bsky.social and Sara Hart osf.io/preprints/ed...osf.ioOSF 1199
Chris Schatschneider @schotz.bsky.social · 21/11/2024The end of the semester is approaching! Teaching random factors in my ANOVA course today! 1140
Chris Schatschneider @schotz.bsky.social · 18/11/2024I am here! I’ve been reading some pretty interesting discussions. But I think they could be improved with the occasional snark post :) 130
Chris Schatschneider @schotz.bsky.social · 18/11/2024Has someone made a shit-poster starter pack? A list of accounts that post snarky comments, random puns, or lighthearted statistical modeling jokes? 6111
Chris Schatschneider @schotz.bsky.social · 06/03/2024Yea I worry about that too. How many researchers undervalue data and reporting accuracy? I don’t know but I’m guessing it’s way too many. 010
Chris Schatschneider @schotz.bsky.social · 19/12/2023What I have done is gone to journals like PLOS where the data is shared (at least theoretically), found some articles that used ANOVA then I re-analyze the data and map it back to the paper 100
Chris Schatschneider @schotz.bsky.social · 13/11/2023I believe the problem is trying to disentangle growth from fluctuations from time point to time point due to the other variable. If something is at equilibrium it would mean we can disregard actual growth as a confound. At least that’s how I understand the issue. 110