A closed adoption is the type where there is totally no contact between the birth parents and the adoptive parents as well as the child. There is also no classifying information shared between families about each other, thereby effectively cutting possible contact between the two. Before the child joins the family, the adoptive parents are provided with non-identifying data about the child and his or her birth family. Once the adoption is concluded, all records are sealed. These sealed records may or may not become accessible to the adopted child once he or she turns 18, but this is dependent on the signed paperwork and local law.
The social stigma of unmarried mothers, particularly during the Baby Scoop Era (1945-1975) rendered them social outcasts. By the 1980s the situation improved greatly and the vast majority of unwed mothers kept their babies. In a mother driven society after WWII infertile couples were also seen as deviant due to their inability to bear children. The social experiment of taking the children from "unmarried mothers" and "giving them" to adoptive parents became the norm during the BSE. These adoptions were predominantly closed. The records were sealed, biological mothers were told to keep their child a secret, and adoptive parents told to treat the child "as if born to".
A 1996 study reported in Child Development found that all the children studied “reported positive levels of self-esteem, curiosity about their birthparents, and satisfaction with the openness situation” regardless of whether their adoptions were closed, semi-open, or open. What this seems to mean is that the child's sense of security in his adoptive family is more important than contact with the birth family.
“It removes the mystery, but it doesn’t remove the grief,” said Claude Riedel, a psychologist and family therapist who co-directs the Adoptive Family Counseling Center in Minnesota. “The reality is that, at certain stages, it’s normal to have questions: why did you choose not to parent me, not to keep me? And there may be complexities: have you kept your other children, but not me?”
In all adoption searches, it is uncommon to find both the birth mother and father at the same time. A separate search, if desired, can be done afterwards for the father. Since males seldom change their surnames, and the mother might have additional information, it is usually easier than the initial search for the birth mother. In many cases, adoptees are able to do this second search for their birth father by themselves (or they try before paying for assistance).