Bernhard Schieber

Mehrabian’s Experiments: Diagnose Incongruence, Not Communication Percentages

Communication · Executive Insight Brief · 081

Check the contradiction, drop the percentages

Tone and facial expression can dominate judgments of attitude when affective cues conflict—but the finding is not a universal 7–38–55 rule

Premise

Few communication claims are repeated more confidently or inaccurately than “93 percent of communication is nonverbal.” Albert Mehrabian’s two 1967 studies with Morton Wiener and Susan Ferris do not support that proposition. They examined a narrow problem: how observers infer liking or disliking when minimal verbal, vocal, and facial cues about attitude are inconsistent.

The responsible executive lesson is congruence, not arithmetic. When a leader’s words express approval while tone or facial behavior signals irritation, recipients may rely heavily on the nonverbal cues to judge attitude. That does not make language unimportant for facts, reasons, commitments, deadlines, or instructions.

Mehrabian’s Studies of Inconsistent Attitude Communication — Check the contradiction, drop the percentages. Executive Insight Brief 494 by Bernhard Schieber.

Continue in the series

  • The essential model
  • Why this matters
  • Risks and limits
  • Executive takeaway
  • Key questions
  • Selected sources

The full brief is in its volume, with the other works of the series.

See the books →

Need the full brief now? Request it under NDA →

New works are announced in The Debrief. Subscribe →

Brief 0Axiom 0: Communication is EverythingRead the axiom →
What these mean

Editorial orientation · Family

Model

In this series, Model names the editorial family primarily used to understand and explain communication: theories, frameworks, effects, traditions, principles and other conceptual resources. It is an umbrella for a route into the field, not a claim that every included object is a predictive model.

Editorial orientation · Category

Effects, Biases & Phenomena

Identifies a bounded pattern in judgment, behavior or communication and the conditions under which it appears. Naming the pattern makes a recurring difficulty recognizable; it does not make the pattern inevitable or supply a complete explanation.

Browse the Communication premises · Knowledge