Two new peer-reviewed studies show that family structure matters and children do best when reared by their married biological mother and father. The widely circulated claim that parents engaged in same-sex relationships do just as well as other parents at raising children—a claim widely known today as the “no differences†thesis—is not settled science. Two new peer-reviewed studies released this week by the academic journal Social Science Research challenge the claim that there are no differences in outcomes between children raised by parents who have same-sex relationships and those raised by their biological mother and father in intact, stable marriages.In...