Final answer:
The Self-in-Relation Theory, or relational-cultural theory, was developed by Jean Baker Miller and further elaborated by Judith Jordan and her colleagues at the Stone Center at Wellesley College.
Step-by-step explanation:
The Self-in-Relation Theory, now known as relational-cultural theory, was developed by Jean Baker Miller. It is often associated with the work of Judith Jordan who, along with other colleagues at the Stone Center at Wellesley College, further developed the ideas around this theory. While the theory does not appear to have been directly developed by any of the individuals listed in the student's options, Judith Jordan is most closely associated with this theory and its development through her continued work and expansion on Miller's initial concepts.