Marcus Crede
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%

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.

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

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
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
Ouch

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.

That's like breaking spaghetti in half.

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.
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
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

If there is a club for people like us I want to be a member. I promise to limit all meetings to five minutes and everyone gets to tell someone to STFU once a year.

RIP Daniel Naroditsky.

Go home APA - you are drunk. Just got an e-mail from an APA journal reminding me that my review was due on 25th October and that it is now -5 days late.

I've learnt far too late that the secret to being a "successful" academic is making one finding or phenomenon your entire identity and then just cudgeling that thing to death for the next 40 years. Ideally you should be able to report at least 100 p-hacked 2x2 ANOVAs.

Lovely. My dad was the same and he never had a father growing up, but somehow he knew to give us that absolute certainty in our childhood.
Next time an institution tells you how seriously it takes research misconduct, ask them if it's *this* seriously. www.bmj.com/content/297/...

Agreed but I'd also note that for many of us none of it really matters anymore. Higher ed is just broken. I can get stellar reviews on all my performance dimensions every year and still see my inflation-adjusted salary decline almost every year. I earn less now than when I started out 20 years ago.

d= -.5 when you draw your sample from the population of 5-year old boys.

Depends a bit on your sample characteristics but I'll guess d=2 just because some of those questions don't really capture "desirability" very well.

PROCESS mediation analysis shows ....
In honor of spooky month, share a 4 word horror story that only someone in your profession would understand

I'll go first: Six page commercial lease.

Power posing boosts testosterone.
In honor of spooky month, share a 4 word horror story that only someone in your profession would understand:

Manuscript Central Account Opened
In honor of spooky month, share a 4 word horror story that only someone in your profession would understand:

The football is open.
In honor of spooky month, share a 4 word horror story that only someone in your profession would understand:

Manuscript Central Account Opened
In honor of spooky month, share a 4 word horror story that only someone in your profession would understand:

The football is open.
In honor of spooky month, share a 4 word horror story that only someone in your profession would understand:

Archives banned making copies.
We have armed secret police kidnapping people off the street based on the color of their skin.

When we win: we will haul them before a Senate committee. The masks will come off. There will be consequences.

I am so pissed that these companies - who must have known about this shit - did not pull their products off the shelves.

For those regularly baking with Casava flour please be aware that many/most commercially available flours appear to be massively contaminated with lead. More than 20 times the recommended daily limit in even a quarter cup.
www.foodandwine.com/lead-contami...
Some Popular Gluten-Free Foods Contain Lead Levels 23 Times Higher Than Safe Limits, According to a New Investigation
Though touted as a gut-friendly alternative, cassava may pose hidden risks. Consumer Reports tested 27 cassava-based foods and found several with lead levels far beyond what’s considered safe. The fin...
www.foodandwine.com