It can be incredibly confusing to children when parents do not present a unified front - especially in terms of discipline. In addition to causing uncertainty to the child it also causes friction between parents because you can guarantee that children can and will find out how to work parents to get what they desire.....that is what children do!
Furthermore, there are significant implications for children living in a household where parents frequently argue. Research has shown that children who are in conflict-ridden homes experience decreased school performance and increases in delinquency, behavior problems and depressive feelings (Boyd & Bee, 2008).
What advice would you give to a couple that has two different parenting styles?