Additional studies show that during the first five years of a child's life, the father's role is more influential than the mother's in how the child learns to manage his or her body, navigate social circumstances, and play. Furthermore, a 1996 study by McGill University found that the "single most important childhood factor in developing empathy is paternal involvement in childcare". Children that have a strong paternal influence have more nurturing abilities. It has been researched in "The Role of the Father in Child Development", that in general, children with stay-at-home dads develop attachments at infancy. The study further concluded that fathers who spent time alone bonding with their children more than twice per week brought up the most compassionate adults.