Social penetration theory

Interpersonal communication theory

The social penetration theory (SPT) proposes that as relationships develop, interpersonal communication moves from relatively shallow, non-intimate levels to deeper, more intimate ones. The theory was formulated by psychologists Irwin Altman of the University of Utah and Dalmas Taylor of the University of Delaware in 1973 to understand relationship development between individuals. Altman and Taylor noted that relationships "involve different levels of intimacy of exchange or degree of social penetration". SPT is known as an objective theory as opposed to an interpretive theory, meaning it is based on data drawn from actual experiments and not simply from conclusions based on individuals' specific experiences.

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