Incidence rate is defined most accurately as the number ofGroup of answer choicesnew cases of a specific problem.cases of a specific problem.cases not experiencing a specific problem.new cases not experiencing a specific problem.

What is the definition of “Incidence”?*1 pointNumber of current cases for a particular condition over the past 12 months.Number of new cases for a particular condition over the past 12 months.Number of new cases for a particular condition.The total number of cases of a disease or condition.

True or False: The formula for a rate is the number of existing cases of the disease outcome divided by the number of people studied, with a mention of the time period under observation.1 pointFalseTrue

One reason why researchers rarely examine whether prevention programs reduce incidence rates is thatGroup of answer choicesthere are no tools for measuring outcome.it is necessary to have a very large sample to detect a difference.it is unnecessary to conduct this type of research as long as high-risk samples are targeted.all of the above.

Which of the following is NOT included in the estimation of the effective contact rate (ECR) for an infectious pathogen?Select one alternative:A) Population at riskB) Contact rateC) Probability of contact with infectious individualsD) Both A and C

Cohort studies allow true determination of incidence of an outcome.Question 2Select one:TrueFalse