Mark Rubin's Avatar

Mark Rubin

@markrubin.bsky.social

social psychology ▪︎ metascience ▪︎ philosophy of science ▪︎ higher education Professor at Durham University, UK. He/him. Website: https://sites.google.com/site/markrubinsocialpsychresearch/ Substack: https://markrubin.substack.com/

19,615 Followers  |  1,908 Following  |  5,294 Posts  |  Joined: 03.07.2023  |  2.1095

Latest posts by markrubin.bsky.social on Bluesky

Anyone know of any good papers on the role of postdiction/retrodiction in theory appraisal?

#philsci

29.01.2026 09:40 — 👍 2    🔁 2    💬 3    📌 0
Before we can look into the way scientists use predictions to evaluate theories, we have to take account of an unfortunate linguistic confusion. In ordinary language “predict” means “foretell” or “prophesy,” implying a statement about future events. But physicists (and many other scientists) currently use the word to mean “deduce from a theory,” whether before or after the fact is known or has occurred. Occasionally one finds the phrase “predict in advance” used to specify prediction of a future event, and sometimes the context indicates that this is what is meant, but very little use is made of terms like  retrodiction” or “postdiction.” The physicist-philosopher Henry Margenau made this quite explicit:

The word prediction, as used in science, does not mean “forecast” in a temporal sense. Pre implies “prior to completed knowledge”; it does not contrast with post as does ante. The counterpart to prefix is not postfix but suffix. It is therefore unnecessary to coin a new word, postdiction, to denote what we should call prediction of the past. The use of this word, though it has been suggested, would seem a bit “preposterous.”

Before we can look into the way scientists use predictions to evaluate theories, we have to take account of an unfortunate linguistic confusion. In ordinary language “predict” means “foretell” or “prophesy,” implying a statement about future events. But physicists (and many other scientists) currently use the word to mean “deduce from a theory,” whether before or after the fact is known or has occurred. Occasionally one finds the phrase “predict in advance” used to specify prediction of a future event, and sometimes the context indicates that this is what is meant, but very little use is made of terms like retrodiction” or “postdiction.” The physicist-philosopher Henry Margenau made this quite explicit: The word prediction, as used in science, does not mean “forecast” in a temporal sense. Pre implies “prior to completed knowledge”; it does not contrast with post as does ante. The counterpart to prefix is not postfix but suffix. It is therefore unnecessary to coin a new word, postdiction, to denote what we should call prediction of the past. The use of this word, though it has been suggested, would seem a bit “preposterous.”

Interesting! I think it was @brianhaig.bsky.social who recommended Brush's (2015) book to me. Seems relevant here too...

global.oup.com/academic/pro...

29.01.2026 18:03 — 👍 1    🔁 0    💬 1    📌 0
Preview
Exploratory hypothesis tests can be more compelling than confirmatory hypothesis tests Preregistration has been proposed as a useful method for making a publicly verifiable distinction between confirmatory hypothesis tests, which involve planned tests of ante hoc hypotheses, and expl...

Rubin & Donkin (2024). Exploratory hypothesis tests can be more compelling than confirmatory hypothesis tests. Philosophical Psychology.

29.01.2026 17:36 — 👍 0    🔁 0    💬 0    📌 0
Preview
Novel prediction and the problem of low-quality accommodation - Synthese The accommodation of evidence has been argued to be associated with several methodological problems that should prompt evaluators to lower their confidence in the accommodative theory. Accommodators m...

Syrjänen (2023). Novel prediction and the problem of low-quality accommodation. Synthese.

29.01.2026 17:36 — 👍 0    🔁 0    💬 1    📌 0
Prediction versus Accommodation (Stanford Encyclopedia of Philosophy)

Barnes (2022). Prediction versus accommodation. Stanford Encyclopedia of Philosophy

29.01.2026 17:36 — 👍 0    🔁 0    💬 1    📌 0
An Epistemic Advantage of Accommodation over Prediction - PhilSci-Archive

Dellsén (2021). An epistemic advantage of accommodation over prediction.

29.01.2026 17:36 — 👍 0    🔁 0    💬 1    📌 0
Preview
Prediction Versus Accommodation and the Risk of Overfitting | The British Journal for the Philosophy of Science: Vol 55, No 1 Abstract When a scientist uses an observation to formulate a theory, it is no surprise that the resulting theory accurately captures that observation. However, when the theory makes a novel prediction...

Hitchcock & Sober (2004). Prediction versus accommodation and the risk of overfitting. The British Journal for the Philosophy of Science.

29.01.2026 17:36 — 👍 0    🔁 0    💬 1    📌 0

Note sure if the following are the sorts of papers you're after here, but...

29.01.2026 17:36 — 👍 1    🔁 0    💬 2    📌 0

Paywall: doi.org/10.1038/s441...

Read-only Access: rdcu.be/e0eCb

29.01.2026 11:32 — 👍 1    🔁 0    💬 0    📌 0
Preview
Towards a habit-rupture model of intergroup contact in everyday settings - Nature Reviews Psychology The literature assumes that intergroup contact is naturally occurring, positive and consistently associated with positive outcomes, but these premises are inconsistent with everyday intergroup contact...

Paywall: doi.org/10.1038/s441...

Read-Only Access: rdcu.be/e0eCb

29.01.2026 11:31 — 👍 2    🔁 0    💬 0    📌 0

Interesting thread that touches on issues I have tried to address in my articles about replication and well as my book (especially chapters 7 and 8).
#psychology #philsky

29.01.2026 07:07 — 👍 13    🔁 3    💬 0    📌 0

Oh thanks Boryslaw! Appreciate that! 🙂

29.01.2026 07:00 — 👍 1    🔁 0    💬 0    📌 0

Yeah, I suppose the word "new" does its fair share of the work too. Nonetheless, I get his point, as I get yours!

29.01.2026 06:53 — 👍 1    🔁 0    💬 1    📌 0
"The purpose of deductive processes is to reveal, or uncover the latent consequences of the axiomatic basis adopted. Nothing essentially new can be discovered, but the coherence of the whole structure can be usefully demonstrated, and its consistency to some extent tested. In the future these processes will perhaps be carried out better by machines than by men."

"The purpose of deductive processes is to reveal, or uncover the latent consequences of the axiomatic basis adopted. Nothing essentially new can be discovered, but the coherence of the whole structure can be usefully demonstrated, and its consistency to some extent tested. In the future these processes will perhaps be carried out better by machines than by men."

I realise I was sort of parroting Fisher (1956, p. 108) with that last comment BTW!

29.01.2026 06:46 — 👍 1    🔁 0    💬 1    📌 0
Preview
Save time with format-free manuscript submission - Author Services You can now submit work to your chosen Taylor & Francis journal without needing to worry about formatting your manuscript.

Also...

"Over 850 of our journals now accept manuscript submissions using any consistent text and citation format, with no need to follow formatting rules.
This can save you time when preparing your article for submission and allows you to focus on your priority: the research."

28.01.2026 21:57 — 👍 0    🔁 0    💬 0    📌 0
Preview
Guide for authors - Your Paper Your Way We’ve developed a comprehensive, easy-to-use guide for authors that tells you everything you need to know about publishing your Next article.

Oh yeah!

"There are no formal length or formatting requirements. Authors are welcome to structure articles in the manner they need to best convey their research."

28.01.2026 21:57 — 👍 0    🔁 0    💬 1    📌 0
Preview
The Industrialisation of Science Comment on Mel Andrews' Recent Essay

I like the word "mechanical" here. You can't discover novel info with a mechanical process. Reminds me of the factory metaphor for replications and the industrialization of science.

28.01.2026 21:32 — 👍 3    🔁 1    💬 1    📌 0

But also, yes, "too much robustness" is a really interesting point...

"A good paper *should not* be robust. There must be assumptions whose alteration will alter the results. If it did not, the paper would be uncovering something mechanical."

28.01.2026 21:32 — 👍 1    🔁 0    💬 1    📌 0

So, I agree there's definitely a grey area when considering what's the "correct" single specification as well as for what's the "correct" multiverse analysis!

28.01.2026 21:32 — 👍 0    🔁 0    💬 2    📌 0

Thanks Ingo! Glad Nicholas' post triggered such interesting thoughts.

The thing I kept thinking about was the word "correct" and what it means when applied to test assumptions. I found this paper is very good when thinking about that...

28.01.2026 21:32 — 👍 0    🔁 0    💬 1    📌 0
Preview
Mum says Glasgow University ‘failed’ son who took his own life after grade error Geography student Ethan Brown should have been awarded a 2:1 degree but was wrongly told he could not graduate.

"The QAA report described the university's code of assessment as 'convoluted' and said there was a risk of inconsistent interpretation and decision-making at exam boards throughout the institution."

#UKHE #AcademicSky

28.01.2026 18:43 — 👍 3    🔁 1    💬 0    📌 0
Preview
Non-adjustment for multiple testing in multi-arm trials of distinct treatments: Rationale and justification - Richard A Parker, Christopher J Weir, 2020 There is currently a lack of consensus and uncertainty about whether one should adjust for multiple testing in multi-arm trials of distinct treatments. A detail...

Great paper! Another good one is Parker and Weir (2020):

"If a type I error rate is of great concern for a given treatment, then this should be addressed by the individual α-levels themselves – not indirectly via controlling the overall FWER [familywise error rate]."

28.01.2026 17:40 — 👍 3    🔁 0    💬 0    📌 0
Preview
Save time with format-free manuscript submission - Author Services You can now submit work to your chosen Taylor & Francis journal without needing to worry about formatting your manuscript.
28.01.2026 07:51 — 👍 1    🔁 0    💬 1    📌 0
Preview
A causal theory of suppositional reasoning - Philosophical Studies Philosophical Studies - Suppositions can be classified as indicative versus subjunctive and full versus partial. We propose a causal account of suppositional reasoning that naturally unifies all...

New paper distinguishes between four types of suppositional reasoning

#PhilSky

28.01.2026 07:39 — 👍 16    🔁 1    💬 0    📌 0

All for it! From memory, something like this was adaopted by some journals previously. Forgot what they called it.

28.01.2026 07:30 — 👍 2    🔁 0    💬 2    📌 0
Preview
Stop Formatting Before the Desk Reject: A Proposal for Staged Submissions Many flagship journals reject most manuscripts at the desk-review stage, with rates of 40–80% being common

Stop Formatting Before the Desk Reject

Proposal from @bnbakker.bsky.social and @jakobkas.bsky.social for a staged submission process when submitting manuscripts to academic journals.

#AcademicSky #PhDSky #AcWri

28.01.2026 07:16 — 👍 19    🔁 6    💬 3    📌 0
Preview
NIH Director Jay Bhattacharya talks 'replication crisis' at Duke panel, omits funding cuts Throughout the second Trump administration, the NIH has frozen billions of dollars in research funding to universities. Those cuts were not the topic of discussion at a Duke Clinical Research Institut...

NIH - "The research arm of MAHA”

Director of the National Institutes of Health, Jay Bhattacharya, calls for a greater emphasis on applied research, especially in connection with Make America Healthy Again.

#AcademicSky #MetaSci 🧪

28.01.2026 06:54 — 👍 6    🔁 6    💬 1    📌 0
MSc Psychology (Conversion) C8K809 - Durham University In this degree, you'll explore the core areas of psychology, including biological, clinical, cognitive, developmental, and social, while gaining the skills to design, conduct, analyse, and write up ex...

Do you have a 2:1 Bachelor (Honours) degree or international equivalent in a non-psychology subject but an interest in studying psychology?

Consider joining us at Durham University - UK Times 2026 University of the Year - for a one-year MSc Psychology (Conversion).

#AcademicSky #EduSky #HigherEd

27.01.2026 22:35 — 👍 7    🔁 6    💬 0    📌 0

Call for metascience grants has a focus on three areas:

🔸️ The impact of artificial intelligence on scientific practice and the research landscape

🔸️ The effective design and leadership of research organisations

🔸️ Scientometrics approaches to understanding research excellence, efficiency and equity

27.01.2026 17:15 — 👍 3    🔁 1    💬 0    📌 0
Preview
High-resolution map shows dark matter's gravity pulled normal matter into galaxies Scientists have created the highest resolution map of the dark matter that threads through the universe—showing its influence on the formation of stars, galaxies and planets.

Dark Matter Map

"Scientists have created the highest resolution map of the dark matter that threads through the universe—showing its influence on the formation of stars, galaxies and planets."

#News #Science 🧪

27.01.2026 07:17 — 👍 180    🔁 42    💬 5    📌 5

@markrubin is following 20 prominent accounts