Final answer:
Attachment theory by John Bowlby and Erik Erikson's psychosocial theory of development reveals parallels in the formation of identity through attachment-linked working models.
Step-by-step explanation:
Attachment theory, developed by John Bowlby, and Erik Erikson's psychosocial theory of development reveal parallels in the formation of identity through attachment-linked working models. Bowlby's theory emphasizes the importance of forming a secure attachment bond between caregiver and child, while Erikson's theory focuses on the social nature of personality development. These theories suggest that attachment history influences not only one's approach to identity formation but also one's contributions to the identity formation of others. By bridging Bowlby and Erikson's theories, new hypotheses can be generated that enrich our understanding of attachment and identity formation.