Mark Regnerus summarizes and responds briefly to a new study done in Canada on same-sex parenting, a summary and study that will no doubt become a political flashpoint:
There is a new and significant piece of evidence in the social science debate about gay parenting and the unique contributions that mothers and fathers make to their children’s flourishing. A study published last week in the journal Review of the Economics of the Household—analyzing data from a very large, population-based sample—reveals that the children of gay and lesbian couples are only about 65 percent as likely to have graduated from high school as the children of married, opposite-sex couples. And gender matters, too: girls are more apt to struggle than boys, with daughters of gay parents displaying dramatically low graduation rates.
Unlike US-based studies, this one evaluates a 20 percent sample of the Canadian census, where same-sex couples have had access to all taxation and government benefits since 1997 and to marriage since 2005.
Almost all studies of same-sex parenting have concluded there is “no difference” in a range of outcome measures for children who live in a household with same-sex parents compared to children living with married opposite-sex parents. Recently, some work based on the US census has suggested otherwise, but those studies have considerable drawbacks. Here, a 20 % sample of the 2006 Canada census is used to identify self-reported children living with same-sex parents, and to examine the association of household type with children’s high school graduation rates. This large random sample allows for control of parental marital status, distinguishes between gay and lesbian families, and is large enough to evaluate differences in gender between parents and children. Children living with gay and lesbian families in 2006 were about 65 % as likely to graduate compared to children living in opposite sex marriage families. Daughters of same-sex parents do considerably worse than sons.