"According to Judith S.Wallerstein and Joan B. Kelly, authors of Surviving the Breakup: How Children and Parents cope with Divorce, approximately one-third of children of divorce do well five to ten years down the road. Another third show some difficulties coping, and the remaining third experience more serious problems" (Wolf).
I like the article I linked above, because it does a nice job of describing the specific effects of divorce for every stage of development. From young toddlers, to school-age children, to teenagers. As a 'tween' when my parents finally divorced, it came as no surprise to me, because they had been previously separated for six years at that point. As the Psychology textbook states, "when parents experience only mild conflict before the divorce, the seeming effects of divorce are actually more severe than when parents experience intense conflict before the divorce" (Lilienfeld 391). I would add onto that that when both parents live under the same roof as their children and than suddenly divorce, with mild conflict the child is more prone to experiencing negative effects of the divorce.
In the end, I think its important for parents to realize that no one child experiences divorce the exact same. The may have similar symptoms, yet react differently. Most children old enough have their grieving and coping period, then they begin to transition into their new family structure and then eventually come to a place of acceptance.
Some advice I would give to any parent is to one, pay attention to their child, because as much as the divorce is emotionally draining on the parents it is even more of a confusing time for some kids. Secondly, I would tell recently divorced parents to listen and talk to their children and answer any questions they may have.