Where IQ scores correlate, it's at the very-low-score end. It doesnt correlate with independent objective performance measures at average-and-above.
The people writing those papers are psychologists, not statisticians, and often the most poorly trained. Most of it is either circular pseudoscience or unreporducible. Indeed, for much of the IQ literature to be "unreporducible" would be a great credit, since it would mean it had a testable thesis -- which, largely, it never does.
The beginning and end of IQ research is, largely, just that straight-line rulers can draw straight lines in any dataset you put them against.
Fit a straight line, find a straight line.
Where IQ scores correlate, it's at the very-low-score end. It doesnt correlate with independent objective performance measures at average-and-above.
The people writing those papers are psychologists, not statisticians, and often the most poorly trained. Most of it is either circular pseudoscience or unreporducible. Indeed, for much of the IQ literature to be "unreporducible" would be a great credit, since it would mean it had a testable thesis -- which, largely, it never does.
The beginning and end of IQ research is, largely, just that straight-line rulers can draw straight lines in any dataset you put them against.