Jason Harvestdancer
Contributor
There are different types of fatherlessness.
I believe I saw some studies that showed children raised by a widow perform approximately as well as children raised by two parents. The performance goes down for those who have divorced parents, and even more for those who have an absent parent from having never married in the first place.
This did show the same trend across all races, although the incidents of each category did vary by race. That indicates that an absent father is a bad thing no matter what ones skin color.
There's a lot of assumptions being made here.
A boy who loses his father at 15 probably would be better off than one who never knew him for instance. This is something your study probably doesn't account for. I doubt the marriage in itself meant anything in the equation, more likely that the children of widowers at some point had their fathers in their lives at all and then lost them later in life is a better way to look at it.
When it compared widowed to divorced to single parenting, I think it accounted for fathers being partially there.