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Reference.org
Language expectancy theory
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<p>Language expectancy theory (LET) is a theory of <a href="/facts/Persuasion/kWj4ff3w">persuasion</a>. The theory assumes language is a rules-based system, in which people develop expected norms as to appropriate language usage in given situations. Furthermore, unexpected linguistic usage can affect the receiver's behavior resulting from attitudes towards a persuasive message. </p>