The strongest indicator of a child's ACT score is the INCOME of the parents. Increasingly IQ tests are being revealed as being culturally-based, too. And the th

The strongest indicator of a child's ACT score is the INCOME of the parents. Increasingly IQ tests are being revealed as being culturally-based, too. And the things that you list; things like impulse control, general responsibility, mental health, are strongly influenced by the environment that the subject must contend with. Eugenics always seem so seductive, but, like phrenology, much is revealed about the outlook and tendencies of the practitioner rather than the subject.