What about all the claims that it is a best performance predictor we have? [0] [0] - https://en.wikipedia.org/wiki/G_factor_(psychometrics)#Practical_validity

What about all the claims that it is a best performance predictor we have? [0] [0] - https://en.wikipedia.org/wiki/G_factor_(psychometrics)#Practical_validity https://en.wikipedia.org/wiki/G_factor_(psychometrics)#Pract...