Diff for "FAQ/OddsRa" - CBU statistics Wiki
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         Sober Drunk
Complied 106 9
Refused 59 56
||||||||<style="TEXT-ALIGN: center"> '''Group''' || '''Sober''' || '''Drunk''' || || ||
||||||||<style="TEXT-ALIGN: center"> Complied || 106 || 9 || || ||
||||||||<style="TEXT-ALIGN: center"> Refused || 59 || 56 || || ||
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You can obtain a confidence interval for thso dds ratio [FAQ:oddsr:using some simple calculations] or by clicking on risk under statistics in the crosstabs procedure in SPSS. You can obtain a confidence interval for thso dds ratio [FAQ/oddsr:using some simple calculations] or by clicking on risk under statistics in the crosstabs procedure in SPSS.

Odds Ratios are useful in summarising the effect size or magnitude of a difference in a 2x 2 table.

For example

Group

Sober

Drunk

||||||||<style="TEXT-ALIGN: center"> Complied || 106 || 9 || || || ||||||||<style="TEXT-ALIGN: center"> Refused || 59 || 56 || || ||

Odds Ratio = (106/9) / (59/56) = (106x56) / (9x59) = 11.18

The compliers were 11 times more likely to be sober than the refusers.

You can obtain a confidence interval for thso dds ratio [FAQ/oddsr:using some simple calculations] or by clicking on risk under statistics in the crosstabs procedure in SPSS.

None: FAQ/OddsRa (last edited 2013-03-08 10:17:58 by localhost)