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MENTAL MODEL · M7479

Odds Ratio

Odds Ratio
DecideHigh supportDecision Science
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

The ratio of the odds of an event occurring in the exposed group to the odds in the control group, used to measure the strength of association between a factor and an outcome.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Quantify the influence of a factor. Transform "Is this factor important?" into a comparable numerical value, supporting evidence-based decisions. (Combined: Test of superiority)

anchor

Anchor fast decisions

OR = (odds in exposed group) / (odds in control group); OR > 1 indicates increased risk with exposure, < 1 indicates protection, = 1 indicates no association; commonly used in case-control studies (since incidence rates cannot be directly calculated).

MINIMUM ACTION

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Source support: Explicit

  • link
    en.wikipedia.orghttps://en.wikipedia.org/wiki/Odds_ratioZH · Explicit
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