Posts Tagged ‘ measures of association ’

Example 8.39: calculating Cramer’s V

June 3, 2011
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Cramer's V is a measure of association for nominal variables. Effectively it is the Pearson chi-square statistic rescaled to have values between 0 and 1, as follows:V = sqrt(X^2 / )where X^2 is the Pearson chi-square, n...

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Example 8.39: calculating Cramer’s V

June 3, 2011
By

Cramer's V is a measure of association for nominal variables. Effectively it is the Pearson chi-square statistic rescaled to have values between 0 and 1, as follows:V = sqrt(X^2 / )where X^2 is the Pearson chi-square, n...

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Posted in SAS | Comments Off on Example 8.39: calculating Cramer’s V

Example 8.39: calculating Cramer’s V

June 3, 2011
By

Cramer's V is a measure of association for nominal variables. Effectively it is the Pearson chi-square statistic rescaled to have values between 0 and 1, as follows:V = sqrt(X^2 / )where X^2 is the Pearson chi-square, n...

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Posted in SAS | Comments Off on Example 8.39: calculating Cramer’s V

Example 8.29: Risk ratios and odds ratios

March 7, 2011
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When can you safely think of an odds ratio as being similar to a risk ratio?Many people find odds ratios hard to interpret, and thus would prefer to have risk ratios. In response to this, you can find several papers that purport to convert an odds rat...

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