A new report from the U.S. National Longitudinal Lesbian Family Study (NLLFS), the longest-running and largest study of American lesbian families, has found that the 17-year-old children of lesbian mothers, all conceived through donor insemination, “were rated higher than their peers in social, academic, and overall competence, and lower in aggressive behavior, rule-breaking, and social problems, on standardized assessments of psychological adjustment.” The results were published today in the prestigious journal Pediatrics. The long-term, “longitudinal” study of the same group over many years offers a picture of lesbian families few other studies can match. The NLLFS began interviewing the mothers in 1986, when they were inseminating or pregnant, then again when the children were a year and a half to two years old, five, and ten. They directly questioned the 10-year-olds and the 17-year-olds. I had the pleasure in 2008 of interviewing principal investigator Dr. Nanette Gartrell, Associate Clinical Professor of Psychiatry