| Estimator | Purpose |
|---|---|
| Proportion difference | Estimate the difference of proportions (also known as Risk Difference). |
| Proportion ratio | Estimate the ratio of proportions (also known as Risk Ratio). |
| Odds ratio | Estimate the odds ratio. Values of the odds ratio range from zero to infinity. Values further from 1 in either direction represent a stronger association. The inverse value of an odds ratio represents the same degree of association in opposite directions. The odds-ratio does not change value when the orientation of a contingency table is reversed so that rows become columns and columns become rows. Therefore it is useful in situations where both variables are random. |
From the Statistical Reference Guide for Analyse-it 6.24.0: https://analyse-it.com/docs/user-guide/contingency/estimators
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