Twin study suggests rationality and intelligence share the same genetic roots - the study suggests that being irrational, or making illogical choices, might simply be another way of measuring lower intelligence.

[u/mvea]

https://www.psypost.org/twin-study-suggests-rationality-and-intelligence-share-the-same-genetic-roots/

[u/ZenPyx]

"Cognitive ability was measured using a combination of tests that assessed vocabulary, numerical reasoning, and the ability to identify patterns in sequences of letters and numbers. These types of tests are commonly used to gauge different aspects of intelligence." -I mean this literally describes an IQ test

Edit - the paper literally lists the test as an IQ test. In fact, the author of the paper says the term "IQ test" 4 times in the article posted on this sub

[u/Agreeable_Cheek_7161 → u/ZenPyx]

While true, it is important to point out they explicitly aren't measuring IQ here

[u/ZenPyx → u/Agreeable_Cheek_7161]

Right, but they are just measuring all of the factors that also go into IQ test measurement? It's the same thing, they aren't measuring anything which isn't assessed by the IQ test, which is rightly not considered to be a great metric for these things

[u/Agreeable_Cheek_7161 → u/ZenPyx]

Sure, but there's very clearly a reason they aren't just using an IQ test but instead using a combination of tests to measure roughly the same thing. In theory, yeah, they measure similar things, but the method used to test it is decidedly different, even if similar in nature

[u/ZenPyx → u/Agreeable_Cheek_7161]

It's literally the same thing though... they are using the exact same testing metrics. The fact that they are so intentionally vague about what they are testing for exactly, and that they haven't mentioned what testing protocols they actually used, would lead me to believe they actually administered IQ tests, but regardless, they are conflating intelligence, which is unmeasurable, with performance on a narrow range of tests.

[u/EveningAnt3949 → u/ZenPyx]

This is not a comment on the research, but a comment on IQ tests: they tend to be bad at measuring intelligence.

And of course historically, many of the people who used IQ tests to classify children acknowledged this.

[u/ZenPyx → u/EveningAnt3949]

The research actually uses an IQ test - in fact, the author of the research talks a lot about IQ tests in the interview he has in this article. So it is a comment on the research.

[u/EveningAnt3949 → u/ZenPyx]

Please read my comment again, and this time try to use reading comprehension. Or simple logic.

Don't be that guy arguing about intelligence with showing a lack of intelligence.