concepts
type: Collection
type: ConceptGroup
member: self-expansion theory

interpersonal relationships
type: Concept
narrower: self-expansion theory

self-expansion theory
type: Concept
broader: the self
broader: interpersonal relationships
definition: Definition Close relationships open up new worlds to people. As you interact with roommates, close friends, and relationship partners in college, you will probably start to notice small parts of yourself changing to become a little more like them and vice versa. [Source: Encyclopedia of Social Psychology; Self-Expansion Theory]

the self
type: Concept
narrower: self-expansion theory