The social penetration model is used to describe which two dimensions of communication: breadth and depth.
One paradigm of interpersonal communication, known as "social penetration theory," centers on gradually opening up to a new acquaintance. A key tenet of this paradigm is that communication between partners should start with the sharing of publicly available, less personal information about each party, and then progress to more private, less common details as the relationship develops.
The origins of the idea of social penetration can be traced back to an interest in explaining the dynamics at play in people's connections with one another. Social penetration theory was created in 1973 by Irwin Altman and Dalmas Taylor, both of whom held doctoral degrees in the field of psychology. The model is widely recognized as "one of the most popular models of relationship development," according to research by Vanlear.
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