Though American parents are with their children more than any parents in the world, many feel guilty because they don’t believe it’s enough. That’s because there’s a widespread cultural assumption that the time parents, particularly mothers, spend with children is key to ensuring a bright future.

Now groundbreaking new research upends that conventional wisdom and finds that that isn’t the case. At all.

In fact, it appears the sheer amount of time parents spend with their kids between the ages of 3 and 11 has virtually no relationship to how children turn out, and a minimal effect on adolescents, according to the first large-scale longitudinal study of parent time to be published in April in the Journal of Marriage and Family. The finding includes children’s academic achievement, behavior and emotional well-being.