Presumably they mean 'g factor' [1] Although somewhat ironically, the person who proposed 'g factor' was specifically reporting correlations between student pe

Presumably they mean 'g factor' [1] Although somewhat ironically, the person who proposed 'g factor' was specifically reporting correlations between student performance in latin, french, english, maths and music. [1] https://en.wikipedia.org/wiki/G_factor_(psychometrics) https://en.wikipedia.org/wiki/G_factor_(psychometrics)