re: Do school guidance counselors have aptitude test?

quote:

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G, as you know, is correlated with ability across fields. It could be used to identify a range or limit of things to do

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Of course, and Gc and Gf (math; engineering) could provide some specificity.

The problem isn't in the predictive validity of G, as that's long been established; the problem is using that information to provide specific recommendations and plans that will maximize an individual's ability, whatever it may be.