Is there a source for that factoid? I haven’t really heard of any comprehensive study being done about how the adopted children of same-sex couples turn out?
I’ve seen and heard anecdotes of such children turning out perfectly normal, but nothing covering hundreds or thousands of such families. With all the same-sex couples adopting, we truly are in the midst of a great (as in large) experiment, and I’d like to see the results from an unbiased source (not from NARTH, FRC, GLAAD, or the Human Rights Campaign, who all have agendas).
It's all part of the agenda.
There is a scientific research study, published in the book "My Genes Made Me Do It". The chapters dealing with homosexual parenting and their influence on their adoptive children is in chapters 22-25.
Link to an article about the book.
It's a cached google page, so it might only be a valid link for a short while.