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Tim Morris

@timpmorris.bsky.social
2.5K followers 472 following 1.6K posts

Biostatistician working on methodology at Novartis. Simulation studies, non-inferiority, missing data, estimands, covariate adjustment… He/him tpmorris.substack.com

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Tim Morris @timpmorris.bsky.social · 8h
Wonderful opportunity for academics to air their petty gripes
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Tim Morris @timpmorris.bsky.social · 10h
Yes, too uncharitable – some noble people like yours truly photograph slides for the pure purpose of ridiculing them with friends on whatsapp (or everyone on Bluesky)
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Tim Morris @timpmorris.bsky.social · 10h
😆 enjoyed your last 2 words
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Tim Morris @timpmorris.bsky.social · 07/10/2026
Ha, well there’s your advert for it 😉
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Tim Morris @timpmorris.bsky.social · 07/10/2026
<COUGH COUGH> Excerpt from chapter 1 of Multiple Imputation and its Application (2e) 😜 doi.org/10.1002/9781...
Screenshot of section 1.3:
“1.3 Patterns of missing data
It is very important to investigate the patterns of missing data before embarking on a formal analysis. This can throw up vital information that might otherwise be overlooked and may even allow the missing data to be traced. For example, when analysing the new wave of a longitudinal survey, a colleague’s careful examination of missing data patterns established that many of the missing questionnaires could be traced to a set of cardboard boxes. These turned out to have been left behind in a move. They were recovered, and the data entered.”
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Will Lowe @conjugateprior.org · 30/09/2026
What is your estimand?
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Tim Morris @timpmorris.bsky.social · 30/09/2026
I think it’s worth notifying the editors and saying you’re reasonably sure it’s AI generated and how do they want you to deal with it in responding. The first point seems worthwhile to stop them sending it back to the reviewer.
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Matt Parkes @mattyjparkes.bsky.social · 30/09/2026
Increasingly feels like 60% of my time is 'logging into systems', and 60% of my inbox is made up of verification codes from logging into systems.
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Tim Morris @timpmorris.bsky.social · 23/09/2026
Given that it doesn’t address the question a trial would, it’s completely unconvincing. Like taking a single-rep of a simulation study and claiming its results should inform patient care.
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Tim Morris @timpmorris.bsky.social · 17/09/2026
Same here and I’m literally in White City where the main BBC studios used to be
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Tim Morris @timpmorris.bsky.social · 17/09/2026
Wow, what universities send people business class?!
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Tim Morris @timpmorris.bsky.social · 15/09/2026
Makes me laugh when people don’t go to conferences for the content or the networking, but they go anyway just for the opportunity to have their calendar show “busy” so they can lock themself in a hotel room and get some work done
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Brennan Kahan @brennankahan.bsky.social · 15/09/2026
***JOB ALERT*** We are seeking to appoint 3 Statistical Methodologists to work on methods related to the statistical analysis of clinical trials, or innovative design methodology. The posts will be based within the UCL Institute of Clinical Trials and Methodology. www.ucl.ac.uk/work-at-ucl/...
ucl.ac.uk
UCL – University College London
UCL is consistently ranked as one of the top ten universities in the world (QS World University Rankings 2010-2022) and is No.2 in the UK for research power (Research Excellence Framework 2021).
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Tim Morris @timpmorris.bsky.social · 09/09/2026
Or maybe it’s: ‘The best desks are far from the window. Although I’m in first, I’ll be self-sacrificial and leave them for other people; I’ll just suck it up and sit by the window but close the blinds to emulate a good desk.’
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Tim Morris @timpmorris.bsky.social · 09/09/2026
Trying to infer what’s going on in people’s brains: ‘I’m first in… where shall I sit today… by the window will be nice… except for all that horrible natural light and those views 🙅… I know – I’ll sit there but close several blinds to block out both for me and others… that’s better.’
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Tim Morris @timpmorris.bsky.social · 04/09/2026
Why does everyone bang on about how every snowflake is unique but never apply it to popcorn
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Tim Morris @timpmorris.bsky.social · 03/09/2026
If I ever get experimental and try to get my axes to nap in a sling you can be sure it will be in private and not just walking down the street
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Tim Morris @timpmorris.bsky.social · 03/09/2026
Just passed a bloke pushing a buggy and glanced at his baby only to discover it was a loaf of sour dough. I just feel this is taking baking obsession a bit far.
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Miss Anthrope @missannthrope66.bsky.social · 02/09/2026
My grandad used to hide the proceeds of crime in an apiary. Proof that booty is in the hive of the bee holder.
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Tim Morris @timpmorris.bsky.social · 01/09/2026
The great thing is that having ‘first’ in the title means a second is being planned… which has just been announced. Munich baby!
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Tim Morris @timpmorris.bsky.social · 01/09/2026
We’re at the end of #MSMR2026 which has been superb. It’s a ‘first’ such symposium and my main criticism is the talks have been too engaging, making it difficult to plan a mental switch off. See what you missed out on here crsuzh.pages.uzh.ch/msmr/program/
crsuzh.pages.uzh.ch
index – MSMR 2026
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Tim Morris @timpmorris.bsky.social · 30/08/2026
Hope you feel better by tomorrow morning! Looking forward to it a lot
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Tim Morris @timpmorris.bsky.social · 20/08/2026
😭
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Tim Morris @timpmorris.bsky.social · 20/08/2026
Anyone else’s kids love to just open the fridge and watch if anything happens, like it’s TV? I might take a pic of the inside and print a full-size poster for each of their bedrooms to save electricity.
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Tim Morris @timpmorris.bsky.social · 17/08/2026
Oh no. I didn’t dare check.
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Tim Morris @timpmorris.bsky.social · 17/08/2026
Statos love using the substantive when going for the meaning of substantial Only if you learn the difference are you entitled to take swipes at people for saying “multivariate” when they mean “multivariable”, “quartiles” when they mean “fourths”, etc
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Tim Morris @timpmorris.bsky.social · 17/08/2026
In this week’s “grammar the way statos use it”, I wonder if at some point dictionaries will extend the definition of substantive to include substantial, like when they extended the definition of literally
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Tim Morris @timpmorris.bsky.social · 17/08/2026
Ooh this make me want to rewatch it
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Tim Morris @timpmorris.bsky.social · 12/08/2026
OMG thank you!
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Tim Morris @timpmorris.bsky.social · 12/08/2026
It’s a genetic thing but we are proof it’s not infectious
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Tim Morris @timpmorris.bsky.social · 12/08/2026
At some point I also started noting every fiction author I’d read who had “bRoKeN” the “rule” and it’s like every single one. Seems a bit odd that statisticians would know this rule when these great writers and their editors don’t, doesn’t it? 🤷
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Tim Morris @timpmorris.bsky.social · 12/08/2026
Anyway, I was trying to understand it years ago. My wife studied English at Oxford and about 10 years ago I thought I would ask her and her cohort about it. None of them had ever come across it.
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Tim Morris @timpmorris.bsky.social · 12/08/2026
I first heard it from a reviewer (statistician) and have since traced it to people who worked with Don Rubin. Rod Little even tries – unsuccessfully – to explain it the weird tips-on-writing section of his book on seminal ideas and controversies in statistics.
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Tim Morris @timpmorris.bsky.social · 03/08/2026
BBC finally explaining what that per cent means on the weather and that they’re frequentists www.instagram.com/reel/DZfGNFU...
instagram.com
BBC Weather on Instagram: "What does an 80% chance of rain really mean? 🤔 The BBC Weather app tells you “the percentage chance of precipitation” each day - but it's sometimes misunderstood. Here's...
50K likes, 1,117 comments - bbcweather on June 12, 2026: "What does an 80% chance of rain really mean? 🤔 The BBC Weather app tells you “the percentage chance of precipitation” each day - but it's so...
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Tim Morris @timpmorris.bsky.social · 26/07/2026
Exactly. It makes clear that ‘uninterpretable’ is a pretty lazy/thoughtless criticism but you also don’t have to like them & use them.
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Tim Morris @timpmorris.bsky.social · 26/07/2026
I don’t love or hate them but think this is nice bsky.app/profile/noah...
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Jonathan Bartlett @jonathan-bartlett.bsky.social · 24/07/2026
Research Fellow post at LSHTM. Come and work with Njeru Njagi, Matteo Quartagno, Wende Clarence Safari, Aurélien Belot, Bernard Rachet and myself on extending multiple imputation methods, in particular for analyses of electronic health records in cancer. jobs.lshtm.ac.uk/vacancy.aspx...
jobs.lshtm.ac.uk
Job Opportunity at LSHTM: Research Fellow in Statistics
The London School of Hygiene & Tropical Medicine (LSHTM) is one of the world’s leading public health universities. Our mission is to improve health and health equity in the UK and worldwide; working i...
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Tim Morris @timpmorris.bsky.social · 23/07/2026
Was once involved in a trial application where the working title was Severe Haemorrhage In Trauma (acronym: SHIFT) Made me laugh to wonder what the F stood for
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Tim Morris @timpmorris.bsky.social · 20/07/2026
It feels like the antithesis of humility, and the opposite of how I’d want to come across when writing. Essentially: you’ve been thinking about it wrong all this time but I’m here to save you.
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Tim Morris @timpmorris.bsky.social · 20/07/2026
Do you get wound up when you read stuff like “Warning: what you are about to read may change your mind about [x]”?
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Tim Morris @timpmorris.bsky.social · 17/07/2026
Agree. Also, Cox and Efron’s comments were so good. Especially emphasised by Breiman’s prickly responses.
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Tim Morris @timpmorris.bsky.social · 16/07/2026
I recently noticed Pauline Baynes is the only illustrator brave enough to have thought this through. I think that’s a centaur top left.
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Tim Morris @timpmorris.bsky.social · 15/07/2026
It should be: many.analyst
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Tim Morris @timpmorris.bsky.social · 15/07/2026
I’m glad you raised this because I was recently wondering how centaurs do push-ups
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Darren Dahly @statsepi.bsky.social · 14/07/2026
🤩 bingkaiwang.github.io/RCT_Bench-ma...
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Tim Morris @timpmorris.bsky.social · 14/07/2026
New post. People often invoke the idea of the estimands patients want. A laudable aim, but not straightforward to learn. Here are a couple of thoughts. ‘What estimands do patients care about? How can patients/researchers know? Is it a reasonable ask?’ open.substack.com/pub/tpmorris...
open.substack.com
What estimands do patients care about?
How can patients/researchers know? Is it a reasonable ask?
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Tim Morris @timpmorris.bsky.social · 09/07/2026
New rule, results now go in supplementary material and methods in the main text
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Tim Morris @timpmorris.bsky.social · 07/07/2026
😆
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Tim Morris @timpmorris.bsky.social · 07/07/2026
Did you like the breathless pace where I didn’t even have time to spell “critical” properly and self-labelled as “seminal”?
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Tim Morris @timpmorris.bsky.social · 07/07/2026
Oh no you’re way behind Jack (Can’t believe you made me dig out ttespoof.pdf)
Spoof paper titled ‘Extending target trial approaches to case series,
case reports and opinions shared on facebook’
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