Eh, I wish we could retire socioeconomics as a valid term. It can mean just about any factor and for it to be used it scientific publications and even normal discourse that goes beyond Facebook level discussion, feel a little counter-productive.

What, exactly, did you mean though?

I thought I was being clear. Access to education, which is a function of wealth, race segregation, and/or cultural expectations, or in other words, economic + social factors.

For example, if a family encourages their child to work from the earliest allowed age at the expense of schooling, that's a manifestation of both economic and social pressures.