Rick Fitzgibbons, director of Comprehensive Counseling Services in West Conshohocken PA, has practiced psychiatry for 35 years. He writes in MecatorNet about the numerous studies that show children do best with a mom and dad. He also takes some space to point out the deep flaws that try to claim the opposing view:

Not surprisingly, there are scholars who oppose this weighty evidence [that children do best with a mother and father]. Two major studies published in 2010 are often cited by homosexual activists and the media. Nanette Gartrell and Henry Bos (10) and Timothy Biblarz and Judith Stacey (11) claim that children who were deliberately deprived of the benefits of gender complementarity in a home with a father and a mother suffer no psychological damage.

However, all data in the Gartell and Bos article are self-reports by the mother and the child. The mothers were aware of the political agenda of the research and this must have skewed the results. This defect in methodology severely weakens the report.

In the meta-study by Biblarz and Stacey, in 31 of the 33 studies of two parent families, it was the parents who provided the data, which consisted of subjective judgments. Once again, this created a social desirability bias because the homosexual parents knew the political agenda behind the study. Furthermore, of the 33 studies in two-person families, only two studies included men, although the title, “How does the gender of parents matter?” suggests that both men and women were fully represented.

Much of the research on same-sex couples tends to have serious methodological flaws. It is often argued that there is no evidence that children are harmed if they are raised by homosexual men. This is true, but the absence of evidence does not prove the case. It means that there is no evidence. Studies of children raised by homosexual men are rare. No studies have examined the long-term effects on adult males raised by homosexual men.