The Wall Street Journal:
There is no question among researchers that fathers who spend time with their children instill self-control and social skills in their offspring.
Exactly how dads do that, however, is largely a mystery.
Thousands of studies have sliced and diced the benefits for children of a close, nurturing bond with Mom. Researchers have a harder time analyzing the ways fathers interact with children, such as rough-and-tumble play.
Read the whole story: The Wall Street Journal