Expectancy Violations Theory

Expectancy violations theory predicts and explains the effects of nonverbal behavior violations on interpersonal communication outcomes such as attraction, credibility, persuasion, and smooth interactions. Human interactions are strongly governed by expectations which, if violated, are arousing and trigger an appraisal process that may be moderated by the rewardingness of the violator. Violation interpretations and evaluations determine whether they are positive or negative violations. Positive violations are predicted to produce more favorable outcomes, and negative violations less favorable outcomes, than positive and negative confirmations respectively. Many of the theory's propositions have been supported empirically. Some contrary findings have led to revision of the theory. The theory has also been expanded to several kinds of nonverbal violations, including personal space, eye contact, posture, touch, involvement, and immediacy violations. The theory also spawned the investigation of the meanings associated with violations and the kinds of arousal that violations provoke.