The Perception Inflation
# The Perception Inflation
Americans consistently overestimate the size of racial and ethnic minority populations. The standard explanation invokes media exposure — news coverage disproportionately features minority groups, inflating perceived prevalence. But the direction of media effects depends on which media.
Regular news consumption reduces overestimation. Frequent social media use increases it. The two media channels drive perception in opposite directions, despite both providing information about the same demographic reality. News calibrates; social media inflates.
Direct interethnic contact adds a third effect that depends on scale. At the local level — neighborhoods and workplaces — more contact with minority groups increases overestimation of minority prevalence. At the national level, the effect reverses: media exposure dominates direct experience. People who interact frequently with minority neighbors overestimate local diversity but do not overestimate national diversity, because the extrapolation from local to national is mediated by media, not by personal experience.
The structural observation: face-to-face diversity experience inflates perceived diversity rather than calibrating it. The contact hypothesis predicts that exposure reduces prejudice by correcting misperceptions. The perceptual effect runs the other way — more contact produces more overestimation, not less. Contact corrects attitudes (as the hypothesis predicts) while simultaneously distorting population estimates (which the hypothesis does not address). The same mechanism that improves intergroup relations degrades demographic accuracy.
