The famous 7-38-55 Rule from Albert Mehrabian’s research is often misquoted, especially when people try to apply it to public speaking or keynote addresses. Let’s set the record straight.
What the 7-38-55 Rule Really Means
Mehrabian’s research, from which the 7-38-55 Rule is derived, was actually about a particular kind of communication: situations where a person is expressing feelings or attitudes, and there is a mismatch between the verbal message (the words) and the nonverbal cues (tone of voice and facial expressions).
This rule is often summed up as:
7% of communication is through words
38% through tone of voice
55% through facial expressions
However, this research was conducted in a controlled environment. Participants evaluated short phrases expressing emotions, like “I like you” or “I don’t like you,” while the tone and facial expressions were manipulated to create ambiguity.
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