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jeff jacoby

Forget the facts; our minds are made up

Do kids raised by same-sex couples turn out as well as those raised by parents of the opposite sex? The accepted answer among social scientists today is that there is no difference: Families headed by a mother and father are no better at child-rearing than those headed by two mothers or two fathers. “Not a single study,” the American Psychological Association categorically declared in a 2005 brief, “has found children of lesbian or gay parents to be disadvantaged in any significant respect relative to children of heterosexual parents.”

But was that conclusion – which has been cited many times – warranted? Loren Marks of Louisiana State University recently reviewed the 59 studies on which the APA had relied. None of them, he writes in the July issue of the academic journal Social Science Research, “compares a large, random, representative sample of lesbian or gay parents and their children with a large, random, representative sample of married parents and their children.” In the absence of high-quality data, the “strong, generalized assertions … made by the APA brief were not empirically warranted.”

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