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the claim

People often over-estimate how much others engage in negative health behaviours such as drinking alcohol, smoking tobacco, and unhealthy snacking.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
4 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that people often over-estimate how much others engage in negative health behaviours such as drinking alcohol, smoking tobacco, and unhealthy snacking?

Yes. People consistently overestimate the prevalence of negative health behaviors among their peers, a misperception that interventions successfully target to reduce harmful habits like excessive drinking.

Verdict: SUPPORTED · 4 sources for, 0 against · Last checked

The analysis

The claim addresses the well-documented psychological phenomenon of false consensus and exaggerated social norms regarding negative health behaviors (such as drinking and gambling). Multiple retrieved papers (0, 1, 3, 5) discuss how individuals routinely misperceive peer behavior as more extreme or prevalent than it is, and how normative feedback interventions effectively correct these exaggerations. No papers refute the claim.

Evidence for · 4
Examining personalized feedback interventions for gambling disorders: A systematic review.
2016
Highlights that interventions successfully reduce inflated perceptions of peer alcohol and gambling consumption norms.
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L, M. & JL, D. (2016). Examining personalized feedback interventions for gambling disorders: A systematic review.. doi.org. https://doi.org/10.1556/2006.5.2016.006

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More for · 3
Social sampling and expressed attitudes: Authenticity preference and social extremeness aversion lead to social norm effects and polarization.
2022
Discusses how individuals infer social distribution of behaviors, connecting directly to false consensus and pluralistic ignorance regarding social norms.
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GDA, B., S, L., & Z, H. (2022). Social sampling and expressed attitudes: Authenticity preference and social extremeness aversion lead to social norm effects and polarization.. doi.org. https://doi.org/10.1037/rev0000342

Correcting exaggerated drinking norms with a mobile message delivery system: Selective prevention with heavy-drinking first-year college students.
2020
Demonstrates that college students frequently misperceive peers' drinking habits and that correcting these exaggerated descriptive norms reduces consumption.
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KB, C., JE, M., HK, B., & NP, B. (2020). Correcting exaggerated drinking norms with a mobile message delivery system: Selective prevention with heavy-drinking first-year college students.. doi.org. https://doi.org/10.1037/adb0000566

A pilot study of the acceptability, efficacy, and iatrogenic effects of a brief dynamic norms intervention for reducing young adult alcohol use.
2023
Shows that personalized normative feedback effectively corrects exaggerated perceptions of peer drinking quantities and frequencies.
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S, G., AE, J., JA, B., JC, D., & CA, S. (2023). A pilot study of the acceptability, efficacy, and iatrogenic effects of a brief dynamic norms intervention for reducing young adult alcohol use.. doi.org. https://doi.org/10.1111/acer.15202

What does the evidence say?

The claim addresses the well-documented psychological phenomenon of false consensus and exaggerated social norms regarding negative health behaviors (such as drinking and gambling). Multiple retrieved papers (0, 1, 3, 5) discuss how individuals routinely misperceive peer behavior as more extreme or prevalent than it is, and how normative feedback interventions effectively correct these exaggerations. No papers refute the claim.

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