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

1,205 Followers 394 Following 680 Posts Joined Aug 2023
16 hours ago

Has he ever pet a dog; smelled a flower; walked hand-in-hand with a loved one; did something for someone else without expecting something in return; shed a tear for someone else etc.

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1 day ago

They would probably grow in your neck of the woods. We have one in our garden and it has started producing nice fruit (needs a cross pollinator).

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1 day ago

We have an orchard near us that has a few dozen trees but they go fast.

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2 days ago

Crimson crisp is obviously no 1.

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3 days ago
Preview
BallotGuessr — A political pundit litmus test GeoGuessr for politics. See a Google Street View image, guess how the county voted in the 2024 presidential election. 5 rounds, 30 seconds each. Play free — no account required.

Brilliant little game: get a google street view image and guess how that county voted in the last presidential election.
I scored 740/1000.
www.ballotguessr.com/play

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3 days ago

I can't stop thinking about this. Imagine:

- 2200 studies, as they say >2000
- 2 studies per article given piloting/multi-study articles
- No p-hacking (lol); 1 test per study (lol), 5% False Positive Rate

That's 55 significant studies that are false positives

Actual publications: 64

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5 days ago

Great. How about a reward for those people who've spent thousands of hours trying to fix the horrendous bullshit produced by our fields' "thought leaders".

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5 days ago

Record your talk, hand out ritalin to your audience, and play it back at 3x speed.

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5 days ago

I'd also add two additional CFA related issues: 1) chi-square comparisons between nested models are only appropriate when the less parsimonious model has a non-significant chi-square, 2) when model fit is poor (as you have on page 21) parameter estimates from the model should not be interpreted.

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5 days ago

Interesting, but the comparison between an orthogonal and single-factor model seems wrong. Surely, the most plausible alternative is a correlated factor model or a hierarchical model? Orthogonal models like this always fit badly.

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6 days ago

Any decade now I will have a conversation with another researcher about my work. It has to happen at some point, right?

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6 days ago

Oh, to publish in a Nature brand journal about how *checks notes* the big math changes to small math.

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1 week ago

This is so cool because even a complete R coding idiot like myself can follow along. Thank you so much!!

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1 week ago

Yup! I have an early draft of their original paper and it is nuts to read that. Carney sent it to me when I contacted her to inquire about the non-significant chi-square value that they reported as significant. That's when the whole power posing crisis started. Somehow I was framed as the bad guy.

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1 week ago
LnuOpen | Meta-Psychology

I wrote about this issue here:
open.lnu.se/index.php/me...

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1 week ago

Important to remember that neither the original power posing researchers nor almost all of the replicators could be bothered to include a neutral pose control condition and that any effective on feelings was almost entirely due to the -ve effects of a contractive pose.

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1 week ago

Ha! The original Lancet article on the dangers of reading in bed is here: doi.org/10.1016/S014...

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1 week ago

If you contact an APA journal to note that multiple papers by the same authors claim that 2+2=7 and that all of their inferences are based on this claim what will follow is a year-long "investigation" followed by a correction noting that 2+2=4 but that the inferences are unchanged.
Science!

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1 week ago

I just received an e-mail suggesting that I follow Snoop Dog on LinkedIn. Does this mean that I am cool?

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1 week ago

True but I also would not have wanted to witness Trump and the Ayatollah resolving conflict the way that Bonobos do.

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2 weeks ago

Definitely. I am very confident that other journals would publish this. I was naive enough to think that the journal that published the meta-analysis would see that they should publish what is essentially a major correction to work that they published.

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2 weeks ago

Good point! We've appealed already but asking for a retraction might not be a good follow-up.

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2 weeks ago

Today the APA journal that published that meta-analysis rejected our commentary - primarily because our findings were not interesting enough. What the actual fuck!

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2 weeks ago

We recently submitted a commentary on a very influential meta-analysis. We found that: 1) 40% of relevant literature had not been identified because of lazy search, 2) a few large N included studies did not meet stated inclusion criteria, and 3) that almost all sig. moderator findings were wrong.

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1 month ago
Preview
How can the use of different modes of survey data collection introduce bias? An introduction to mode effects using directed acyclic graphs (DAGs) Abstract. Survey data are self-reported data collected directly from respondents by a questionnaire or an interview and are commonly used in epidemiology.

Users of survey data, lovers of DAGs, and general methodological enthusiasts, gather round!

I'm so excited to share this new paper, joint work with my brilliant colleagues @rjsilverwood.bsky.social, @pwgtennant.bsky.social, and Liam Wright.

🧵

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2 weeks ago

Is there no informed consent form for this? This feels very dodgy. Is there IRB approval for this study?

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2 weeks ago

Pfft. Mathematically impossible results are not a problem at all. Simply send them to the Journal of Management. They give awards for that kind of stuff.

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2 weeks ago

i paid around $2.5 a few days ago.

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2 weeks ago
Preview
a fluffy cat is sitting on a table and says `` i 'm feeling sick '' . ALT: a fluffy cat is sitting on a table and says `` i 'm feeling sick '' .

Plan to take the next day off from work if you are going to get the pneumonia vaccine. Ask me how I know.

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2 weeks ago

Amazing!!

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