A securely attached child will store an internal working model of a responsive, loving, reliable care-giver, and of a self that is worthy of love and attention, and will bring these assumptions to bear on all other relationships.
This passage delivers the canonical formulation of IWMs, showing how attachment security generates paired self-and-other representational models that generalize to all subsequent intimate relationships.
, John Bowlby and Attachment Theory (Makers of Modern, 2014thesis