Communication · Executive Insight Brief · 044
The average can hide a widening gap
Equal distribution can widen inequality when groups differ in prior knowledge, skills, networks, exposure, and information access
Premise
Communication campaigns are often judged by distribution, reach, or aggregate awareness. The Knowledge Gap Hypothesis warns that overall learning can rise while inequality grows. Phillip J. Tichenor, George A. Donohue, and Clarice N. Olien proposed that as mass-media information enters a social system, higher socioeconomic-status groups tend to acquire it faster than lower-status groups.
For executives, the relevant outcome is differential acquisition. Sending identical information does not create equal understanding when audiences begin with different vocabulary, prior knowledge, social support, navigation skill, and channel access. A campaign can therefore meet its average target while leaving the people most dependent on the information further behind.
What the model is: Knowledge Gap Hypothesis in Knowledge →
Continue in the series
- The essential model
- Why this matters
- Risks and limits
- Executive takeaway
- Key questions
- Selected sources
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- FamilyModel
- CategoryTheories & Explanatory Models
- DomainMedia, Publics & Society
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
Theories & Explanatory Models
Explains how or why a communication process works by relating mechanisms, conditions or variables. Its value is an account that can guide inquiry into what produces an outcome, rather than a name for the outcome alone.