Marcus Crede
@marcuscrede.bsky.social
Grumpy IO psychologist with an interest in research methods, meta-science and personality. Views are my own and not those of my employer.
Begrawe my hart op Klein Tambotieboom en strooi my as oor die Bosveld horison
Psychology
54%
Business
15%
A method that seems designed to allow researchers to draw causal conclusions from single-source, concurrent observational data is a problem. The management literature is awash with this nonsense. Sure, the users are to blame but PROCESS seems almost designed to facilitate this nonsense.
Supply chains are completely insane. Here I am, in a small town in central Iowa in November, and I can buy a perfectly ripe Pomegranate for $1 at a store that is a block away from my house.
At some point Harvard will surely figure out if they just keep hiring awful people or if they also turn previously non-awful people into awful people.
One of the giants of social psychology was a serial sexual harasser.
This new report reveals how Miles Hewstone touched, bullied, and sexual harassed numerous women during his 18 years at the University of Oxford. It's amazing how often bullying and sexual harassment go together in academia.
This new report reveals how Miles Hewstone touched, bullied, and sexual harassed numerous women during his 18 years at the University of Oxford. It's amazing how often bullying and sexual harassment go together in academia.
Observational data? ✅
Nonsensical moderated mediation model? ✅
Complete absence of open science practices? ✅
Sample size of 44? ✅
impossible standard deviations? ✅
Publication in management journal? ✅
Exorbitant salary to all involved? ✅
Nonsensical moderated mediation model? ✅
Complete absence of open science practices? ✅
Sample size of 44? ✅
impossible standard deviations? ✅
Publication in management journal? ✅
Exorbitant salary to all involved? ✅
So sorry for your loss Simine. 😢 We don't deserve dogs and yet they put up with us.
Reposted by David J. Hughes, Marcus Credé
The effect of teaching strategies on student achievement: An analysis using TALIS-PISA-link
The present study investigates the effects of different teaching strategies on student achievement using data from the so-called TALIS-PISA link creat…
www.sciencedirect.com
#AcademicSky
Using PISA data, analysis shows that:
✳️ traditional teaching methods (lecturing, memorization & repetition of tasks) ==> better math learning.
✳️ "Innovative" teaching ==> worse math learning.
Effects amplified among low SES kids.
www.sciencedirect.com/science/arti...
Using PISA data, analysis shows that:
✳️ traditional teaching methods (lecturing, memorization & repetition of tasks) ==> better math learning.
✳️ "Innovative" teaching ==> worse math learning.
Effects amplified among low SES kids.
www.sciencedirect.com/science/arti...
Why Is Larry Summers Still Employed?
The revelations about the economist’s attempts to pressure a women into a “relationship”—with guidance from Jeffrey Epstein—should finally disqualify him from teaching students.
www.thenation.com
I know that at this point it's a subplot in the Epstein files drama, but I feel compelled to point out, once again, that Larry Summers HAS NO BUSINESS teaching students at ANY university ever again!
My latest cries into the abyss, in @thenation.com
www.thenation.com/article/soci...
My latest cries into the abyss, in @thenation.com
www.thenation.com/article/soci...
R - how do I hate thee? Let me count the ways. I hate thee to the depth and breadth and height my soul can reach ...
There are so many types of skullduggery - why limit yourself to research on just one?
Reposted by David J. Hughes, Jill A. Jacobson
I am hoping to recruit a graduate student for next year. That person would help conduct research on leadership, individual differences, and methodological skullduggery. Please forward to any potentially interested students.
Reposted by Marcus Credé
Aging Out of Fucks: The Neuroscience of Why You Suddenly Can’t Pretend Anymore
Your brain's middle finger to people-pleasing
www.blog.lifebranches.com
I’ve been out of fucks for a very long time but if you’re not quite there… give this article a read!
“Aging Out of Fucks: The Neuroscience of Why You Suddenly Can’t Pretend Anymore”
www.blog.lifebranches.com/p/aging-out-...
“Aging Out of Fucks: The Neuroscience of Why You Suddenly Can’t Pretend Anymore”
www.blog.lifebranches.com/p/aging-out-...
I think that a prior editor often signed onto COPE but subsequent editors were not informed.
Many journals are members of COPE and their flowcharts and guidelines would supposedly apply but in my experience these are often ignored - sometimes because editors have no idea that their journal is a COPE signatory.
It's been more than 7 months since I alerted an APA editor to serious statistical impossibilities and discrepancies in papers published in their journal by the same set of authors. How can it take 7 months to "investigate" something that can be confirmed on the back of napkin in 5 minutes?
I just wish that grad programs would follow the evidence and not base admissions decisions on personal statements at all - because we have good meta-analytic data showing that they are not predictive of success and because we can't even know who wrote them.
I struggle to think of a statistical "method" that has been more damaging to psychology (and related disciplines) than mediation analysis based on observational data. IMHO all such manuscripts should be desk rejected.
And, of course, such a model would have even worse fit.
Perhaps I am not following correctly but the authors seem to show that a model with two higher-order factors does not fit data very well and then rely on a model with a single higher-order factor for most other analyses without ever showing (or even testing) that this model exhibits adequate fit.
proquest.com
The only systematic review that I know of has also demonstrated that personal statements offer no incremental validity in the prediction of success indicators in grad school.
proquest.com/docview/225605798?pq-origsite=gscholarcbl=1059mod=article_inline&fromopenview=true
proquest.com/docview/225605798?pq-origsite=gscholarcbl=1059mod=article_inline&fromopenview=true
It’s grad school application season, and I wanted to give some public advice.
Caveats:
-*-*-*-*
> These are my opinions, based on my experiences, they are not secret tricks or guarantees
> They are general guidelines, not meant to cover a host of idiosyncrasies and special cases
Caveats:
-*-*-*-*
> These are my opinions, based on my experiences, they are not secret tricks or guarantees
> They are general guidelines, not meant to cover a host of idiosyncrasies and special cases
I appreciate the intention but I really wish that faculty paid much less attention to these personal statements. You have no idea who wrote them (esp. in the age of LLMs) and applicants for whom English is not their primary language may be stellar but not be able to ace these types of nuances.
It’s grad school application season, and I wanted to give some public advice.
Caveats:
-*-*-*-*
> These are my opinions, based on my experiences, they are not secret tricks or guarantees
> They are general guidelines, not meant to cover a host of idiosyncrasies and special cases
Caveats:
-*-*-*-*
> These are my opinions, based on my experiences, they are not secret tricks or guarantees
> They are general guidelines, not meant to cover a host of idiosyncrasies and special cases
Horrifying. Of course, many psychologists simple "forget" to even include a control group. In one notable instance that led to about 100 million viewers being misled about the efficacy of power posing.
Hard to tell without means, standard deviations, and correlations among variables. Pretty surprising that none of that is reported anywhere.
Interesting, although I do so wish that they did not rely on a difference score to operationalize racism in study 1. I also wonder how much of their finding is simply regression to the mean (low racism and good mental health at baseline regressing to higher racism and poorer mental health later).
I have the mathematical ability of a marmot and yet my Erdös number is apparently 4.
Marcus Crede
@marcuscrede.bsky.social
· Oct 26
That's like breaking spaghetti in half.
Marcus Crede
@marcuscrede.bsky.social
· Oct 25
That merely being “under review” by a Nature family journal is offered as a quality proxy for a paper is a tragic illustration of the extent to which academia is addicted to brands and outsources evaluation
This. Most "high impact factor" journals publish some absolute BS nonsense and "low impact factor" journals publish stellar stuff. If you want to base your evaluations of an article on citations (please don't) then base it on the citations that the article garners - not on those of other paper.
Richard Sever
@richardsever.bsky.social
· Oct 25
That merely being “under review” by a Nature family journal is offered as a quality proxy for a paper is a tragic illustration of the extent to which academia is addicted to brands and outsources evaluation