For those wondering: this is the ~same analysis as in http://www.sciencedirect.com/science/article/pii/S0160289607000025 … @KirkegaardEmil
The stability of general intelligence across ~18 years. Age 18 to ~38. VES data.pic.twitter.com/NCyWcMKVIi
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I can do stats, but apparently can't do arithmetic. Interval is ~18 years, so first testing must be ~20.
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@AmirSariaslan what's the confidence numbers? -
What do you mean? Confidence intervals are given in the figure.
@MagWes@AmirSariaslan -
in iq or g points... would be interesting
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Sounds like you just want prediction error. Easy to calculate: http://onlinestatbook.com/2/regression/accuracy.html …
@MagWes@AmirSariaslan -
no, would be interesting to know how many iq points that differ between the tests. Or are the numbers in ...
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then graphics that?
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You don't need a plot for that. Just do the math. All you need in the scale + correlation, which you already have.
@MagWes@AmirSariaslan -
yeah what I don't know is if the scale is the same as iq points
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@SilverVVulpes interesting wee bit of non linearity in scatter at lower-mid range of early g -
It's almost entirely linear.
@bogglerapture@SilverVVulpespic.twitter.com/34IvcgcZVY
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absolutely! Just made me wonder if the very lowest at start may show a slight drop over time.
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These data are standardized (mean = 0). They cannot show a drop. IQ scores increased for verbal test.
@bogglerapture@SilverVVulpes -
a person can change z no? Either way - looking forward to reading more about it. Thanks for posting.
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If only 'general intelligence' was actually real, then we wouldn't have to present hypotheses as evidence of themselves...
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