Question

MARK TRUE OR FALSE FOR EACH STATEMENT

1. The total population contributes to the denominator of incidence measures

2. A report of a clinical trial of a new drug versus a placebo noted that the new drug gave a higher proportion of successes than did the placebo (70% versus 40%). The report ended with the statement that the p value associated with this finding was equal to 0.05. This means that 5 out of 100 patients did not benefit from the new drug.

3. The percent of children who develop ear infections during the first three years of life is an example of an incidence rate.           

Answer 1

1. The total population contributes to the denominator of incidence measures

Yes we have to divide by the total population.

2. A report of a clinical trial of a new drug versus a placebo noted that the new drug gave a higher proportion of successes than did the placebo (70% versus 40%). The report ended with the statement that the p value associated with this finding was equal to 0.05. This means that 5 out of 100 patients did not benefit from the new drug.

p-value is not simple probability.

3. The percent of children who develop ear infections during the first three years of life is an example of an incidence rate.

Yes, it is the measure of how many children with ear infection within 3 years are there.