How Much More Likely ? The Implications of Odds Ratios for Probabilities

  title={How Much More Likely ? The Implications of Odds Ratios for Probabilities},
  author={Akiva M. Liberman},
Binary outcome data are common in research and evaluation. They are often analyzed using logistic regression, and results of these analyses are often reported in the form of odds ratios (ORs). However, ORs are not directly interpretable in the metric commonly used in policy-relevant discussions, which concerns probabilities. ORs are unfamiliar to nonresearchers, and their relationship to probability implications is not well understood by researchers. For example, the common practice of taking… CONTINUE READING

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