Most attachment research has focused on mother and baby attachment, and the role of the father in the development of attachment has often been neglected
But the quality of fathers' play with babies was related to the quality of adolescent attachments, suggesting fathers have a different role focused more on play and stimulation
There is no suggestion from respectable psychologists that having a single parent or two same-gender parents has any negative impact on children's development
Studies consistently show that children in single-mother and lesbian-parent families do not develop differently from children in two-parent heterosexual families
Research into the role of the father can be used to offer reassuring advice to parents, such as that fathers are capable of becoming primary attachment figures