Question

Which of the following is TRUE about the odds ratio for an interval predictor variable? a....

Which of the following is TRUE about the odds ratio for an interval predictor variable?

a. If the odds ratio is 0, there is no association between the predictor variable and the response.

b. If the odds ratio is negative, the odds of the event happening decreases with unit increase in the predictor variable.

c. If the odds ratio is greater than 1, the odds of the event happening increases with unit increase in the predictor variable.

d. All of the above.

Math   Statistics-And-Probability   
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Answer #1

An odds ratio is an measure of association between predictor variable and response.

so, odds ratio 0 means there is no association between predictor variable and response.so,point (a) is true.

odds ratio negative means there is an negative association between two variable that is they are inversely proportionate.That is the odds of the event happening decreases with unit increase in the predictor variable.So, the point (b) is also true.

now, odds ratio greater than 1 means the odds of the event happening increases withj unit increase in the predictor variable.

So the correct answer will be option (d) that is, all of the above is correct.

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