Which section of that very long article are you claiming supports your assertion?
Here's a bit from the start of the "Concept" section:
>> In a famous research paper published in 1904,[8] English psychologist Charles Spearman observed that children's performance measures across seemingly unrelated school subjects were positively correlated. The consistent finding of universally positive correlation matrices of mental test results (or the "positive manifold"), despite large differences in tests' contents, has been described as "arguably the most replicated result in all psychology".[9]
>being intelligent in one thing does correlate with being intelligent at other things
vs
>The consistent finding of universally positive correlation matrices of mental test results (or the "positive manifold"), despite large differences in tests' contents, has been described as "arguably the most replicated result in all psychology".[9]
How are they contradictory? Did the first part of my comment make you think there was a negation?
> Contrary to popular belief, being intelligent in one thing does correlate with being intelligent at other things[1].
> [1] https://en.wikipedia.org/wiki/G_factor_(psychometrics)
Which section of that very long article are you claiming supports your assertion?
Here's a bit from the start of the "Concept" section:
>> In a famous research paper published in 1904,[8] English psychologist Charles Spearman observed that children's performance measures across seemingly unrelated school subjects were positively correlated. The consistent finding of universally positive correlation matrices of mental test results (or the "positive manifold"), despite large differences in tests' contents, has been described as "arguably the most replicated result in all psychology".[9]
That explicitly contradicts your assertion.