iiinova — where your digital self keeps evolving

Rich Morris @sometimesdata.bsky.social · 06/07/2026

I love your work on this and I think it could be the basis of a much wider enterprise beyond education research.

120

Reposted by Rich Morris

Hane @hane.bsky.social · 23/04/2026

I'm a mid-career researcher insofar as my research career is mid

313823

Rich Morris @sometimesdata.bsky.social · 25/04/2026

Slope would be my choice. It seems to be the key question/message: which country increased the most?

200

Rich Morris @sometimesdata.bsky.social · 25/04/2026

Great piece. Thanks for that. But you sometimes mix up happiness (“How happy are you with your life overall?”) with mental health (“How sad/anxious/depressed have you been in the last four weeks?”). These are different things and can move independently. Mental health has been improving since 2021

030

Rich Morris @sometimesdata.bsky.social · 10/04/2026

That’s why I’m grateful R function names are case sensitive :-) tho I’m sure this would be considered cheating!

100

Rich Morris @sometimesdata.bsky.social · 18/03/2026

I'm trying to find examples of replicable mistakes by Chat GPT. I seem to recall there was a thread on here about common causal inference mistakes made by AI. Does anyone have a tip? #causalsky

140

Rich Morris @sometimesdata.bsky.social · 19/02/2026

I don't think there can be any consciousness without time. #randomshowerthoughts

020

Rich Morris @sometimesdata.bsky.social · 19/02/2026

Some of the creators of Claude or other LLMs assign a greater than 0% chance the LLM is conscious. Something as high as 20 to 80%. This would be ethically problematic but I don't think this is right. Claude is non-committal on the topic but it also says it doesn't experience the passage of time.

120

Rich Morris @sometimesdata.bsky.social · 14/02/2026

“A simple comparison of means, with credible random assignment, beats a complex structural model with doubtful exclusion restrictions” - favourite quote so far

110

Rich Morris @sometimesdata.bsky.social · 14/02/2026

Great read tho! Very nice overview

100

Rich Morris @sometimesdata.bsky.social · 14/02/2026

X can cause Y without correlation, but the article only describes 3 ways this can happen. There are more! Eg Y may be multidetermined so X (and W, and Z) causes Y but the correlation isn’t detectable in the presence of other causes (or spontaneous Y occurrences)

100

Rich Morris @sometimesdata.bsky.social · 14/02/2026

Causes can exist without correlation, but they are hard to detect without a true experiment

010

Rich Morris @sometimesdata.bsky.social · 14/02/2026

“Every student learns that correlation does not imply causation. Few learn the converse: absence of correlation does not imply absence of causation. Both mistakes are common in applied work, and understanding why reveals something fundamental about what causal inference requires.”

140

Rich Morris @sometimesdata.bsky.social · 22/01/2026

Mental health interventions are now digital but over 50% of the variance in effectiveness for stress is due to differences in design and features. Expert design is needed and throwing everything at the wall is not helpful: www.jmir.org/2025/1/e71253/

jmir.org

Optimizing Workplace Digital Mental Health Interventions: Systematic Review and Meta-Analysis

Background: Digital mental health interventions (DMHIs) are widely used in workplaces to address common mental health conditions such as depression, anxiety, and stress. Their content and design vary ...

021

Reposted by Rich Morris

The R Foundation @r-foundation.bsky.social · 22/01/2026

We are responding to this call for evidence: ec.europa.eu/info/law/bet... Do you have concrete examples of the added value of #Rstats in the public or private sectors? Include the most important factors (risk, lock-in, security, innovation...) to assess the added value. Thanks!

ec.europa.eu

European Commission - Have your say

73537

Rich Morris @sometimesdata.bsky.social · 16/01/2026

I’m in this tweet and I don’t like it

030

Rich Morris @sometimesdata.bsky.social · 31/12/2025

It's coming: bsky.app/profile/hype...

000

Rich Morris @sometimesdata.bsky.social · 30/12/2025

Are young Gen Z men today becoming both more disengaged (not in education, employment or training) and more likely to desire children? How would we square that circle?

010

Rich Morris @sometimesdata.bsky.social · 27/12/2025

tagging @rkwilkins.bsky.social because #HILDA is a great resource for fertility researchers but I don't know where to find them!

000

Rich Morris @sometimesdata.bsky.social · 27/12/2025

Is there something in the water of young men today?

310

Rich Morris @sometimesdata.bsky.social · 27/12/2025

facebook was listening... facebook is always listening

100

Rich Morris @sometimesdata.bsky.social · 19/12/2025

Would you like to look into Medicare claims for mental health support over COVID - I think subsidies were extended for extra psych visits but can’t find records or dates. Other subsidies or State-specific programs might have been provided as well. Could provide nice evidence for treatment efficacy

000

Rich Morris @sometimesdata.bsky.social · 19/12/2025

Latest data from Australia indicates mental ill-health among 15-19 year olds has already peaked. But what caused it to peak? And what caused it to turn around?

Rising trend in psychological distress among school-aged youth peaked in 2022, replotted from latest results of Mission Australia Youth Survey (2012-2025)

111

Rich Morris @sometimesdata.bsky.social · 12/12/2025

Indeed. It seems with sensible immigration policies (skill/education based perhaps) we could trust the market to distribute the population where it will be most productive and avoid most of the ill-effects of rapid decline

110

Rich Morris @sometimesdata.bsky.social · 10/12/2025

Does anyone else just surf LinkedIn hoping to find a job using R, Quarto, or Shiny? #rstats

190

Rich Morris @sometimesdata.bsky.social · 28/11/2025

That makes more sense than the ANCOVA to me. But my thinking is you want the effect of time because that is the only variable in the implicit DAG which is producing the change.

110

Rich Morris @sometimesdata.bsky.social · 27/11/2025

Devils advocate if there is no treatment group ANCOVA is the wrong choice. It answers if pre predicts post. You want if measure changes over time. Second model does that.

220

Rich Morris @sometimesdata.bsky.social · 27/11/2025

That's a tough decision to go through, but getting a PhD can sometimes be an albatross around your neck. It can be hard to know what the good and bad choices are while you are making them - bad luck now can look like a good choice in a few years time and we are all navigating by the rear view mirror

030

Reposted by Rich Morris

Danger, Bees! @foolishhoomans.bsky.social · 12/10/2025

America is great when kids can't play soccer because the secret police may steal their parents

0234

Rich Morris @sometimesdata.bsky.social · 02/10/2025

That’s what drove me to always declare the method!

010

Rich Morris @sometimesdata.bsky.social · 01/10/2025

Major depressive episodes among US teenagers peaked in 2021 and have been declining since. More evidence challenging simplistic theories of teen mental health

Trend line plot showing major depressive episodes in US teenagers peaked in 2021 and have declined since then (Source data: National Survey on Drug Use and Health)

100

Rich Morris @sometimesdata.bsky.social · 09/09/2025

I did not plan to read all 240 posts on observational evidence today. I did not WANT to read all 240 posts on observational evidence today. What did you do today? Sigh…

000

Rich Morris @sometimesdata.bsky.social · 06/09/2025

The trouble with being an #rstats celebrity is that everything you post about statistics will be taken veeeery seriously :-P

000

Rich Morris @sometimesdata.bsky.social · 05/09/2025

that seems like an odd design for an RCT (would it really be an RCT?). Do you have any real world examples in mind or were you just offering a thought experiment to challenge my (our?) assumptions?

100

Rich Morris @sometimesdata.bsky.social · 04/09/2025

If we distinguish along those lines, then ANCOVA is always preferred when we have a clear expectation the groups do not differ at baseline (eg RCT). Where I'm unclear is the observational case when groups may differ and we want to decide whether to equate differences with ANCOVA (or matching etc)

100

Rich Morris @sometimesdata.bsky.social · 04/09/2025

this would also help me understand @f2harrell.bsky.social position on this issue better. (Frank have you ever written anything on Lord's paradox I could read somewhere?)

000

Rich Morris @sometimesdata.bsky.social · 04/09/2025

(I actually thought the paper in the op was really helpful but found the more subtle logical inferences too difficult to follow)

000

Rich Morris @sometimesdata.bsky.social · 04/09/2025

I think someone posted earlier that medicine is concerned with the expected effect of an intervention in the population (so ANCOVA), while education/etc is concerned with compensatory effects among subgroups (so change scores). Would like to hear if that is explained somewhere

200

Rich Morris @sometimesdata.bsky.social · 04/09/2025

is there an easy distinction between the questions to help understand the differences here? e.g., Does strength training compensate for differences between men and women? vs does training increase strength in men and women?

100

Rich Morris @sometimesdata.bsky.social · 03/09/2025

I'm trying to understand the wrinkles you mention here. Taking your off-the-cuff eg, using ANCOVA with baseline strength would potentially introduce regression-to-the-mean (RTM) effects right? Because ANCOVA would compare post score strength in weak men to strong women... and so produce a biased ATE

100

Rich Morris @sometimesdata.bsky.social · 02/08/2025

That's a good point. However so far that has been mostly unsuccessful hasn't it? I recall it broke grok and they had roll back the changes...

010

Rich Morris @sometimesdata.bsky.social · 01/08/2025

I feel like we are in a golden age of AI right now, like when google first appeared and you could get your search results without adverts. How long before AI results start incorporating ads?

210

Rich Morris @sometimesdata.bsky.social · 30/07/2025

how on earth does anyone search up for details for useR! ??? Google just returns a list of results about user groups etc...

100

Rich Morris @sometimesdata.bsky.social · 28/07/2025

"Either politics throws open the doors, or it won’t be long before they’re kicked in by angry citizens as they smash every last stick of furniture and walk out with the chandelier of power" -this was released two years before Jan 6th open.spotify.com/track/4Sw9Xa...

open.spotify.com

Steve And Fatima

Deadbeat · Wax Poetic For This Our Great Resolve · Song · 2018

020

Rich Morris @sometimesdata.bsky.social · 11/07/2025

Further evidence of my assertion that most of the useful information on the internet is still text. Just need a browser which presents text

000

Reposted by Rich Morris

Coach Finstock @coachfinstock.bsky.social · 03/07/2025

Yeah so there's no way anyone is coming here for World Cup or Olympics. if you can bag up the son of one of the most famous boxers to ever live, you can do that to anyone.

221050368

Rich Morris @sometimesdata.bsky.social · 03/07/2025

protip for Gen Z working with older colleagues: if discussing data or studies which occurred entirely after the year 2000, you can refer to them as *21st Century*. It will sound futuristic and sci-fi to anyone who grew up on Buck Rogers, Flash Gordon (i.e., Gen X, Boomers) - very impressive!

020