This month yielded yet another published study — which received positive media attention — based on the National Longitudinal Lesbian Family Study. The NLLFS is about to enter its third decade of following the same 78 respondents, who were “planned†and born to lesbian mothers employing artificial reproductive technology; in nearly all the families studied, the children were being raised by their biological mother and her partner. While any sociologist worth his or her degree can appreciate the laborious task of keeping track of and reinterviewing the same group of people over many years, this particular data-collection effort probably...