They both could be the same variable. If "Wealth doesn't matter once you factor ...

		mathattack on June 6, 2014 \| parent \| context \| favorite \| on: Who Gets to Graduate? They both could be the same variable. If "Wealth doesn't matter once you factor in parental education" and "Parental education doesn't matter once you factor in wealth" are both true, then it's probably the same effect.