[JRandomFreeper]

The weights assigned to the two parts were chosen so that the average scores of boys equals the average scores of girls

That's dumb. How can a test be predictive if it's weighted to support a particular outcome?

/johnny

[Redmen4ever]

With regard to the weights of the SAT that produce a total score: there is no good argument for any weight, and - logically - no good argument against any weight. In such a case as this “the rule of insufficient reason” says apply equal weights.

Also: the component scores are made available, along with the combined score. So, if anybody wanted, they could apply a different weighting scheme.