On Wednesday we wrote that single women believe Obama is more favorable to women than Romney. I asked myself why this might be so.
A factor contributing to this view among single women is that roughly 70% of black women are not married (45% never marry) and 90% of blacks support Obama.
In other words, black women - who are more likely than others to support Obama - are overrepresented in the subpopulation called "single women." I am not aware of anyone noting this bias factor influencing poll findings for single women.
