epidemiology

Which of the following is not a measure of central tendency?

• Mean

• Median

• Mode

• Standard deviation

Which of the following is a measure of the spread of disease in a population?

• Incidence

• Prevalence

• Mortality rate

• Case fatality rate

Which type of study design is best suited to determine the cause-effect relationship between an exposure and an outcome?

• Cross-sectional study

• Case-control study

• Cohort study

• Randomized controlled trial

Which of the following is an example of a vector-borne disease?

• Tuberculosis

• Hepatitis B

• Malaria

• Influenza

Which of the following is a characteristic of a good screening test?

• High cost

• Low sensitivity

• High specificity

• High false positive rate

What is the purpose of randomization in a randomized controlled trial?

• To ensure that the treatment group and the control group are similar

• To increase the power of the study

• To ensure blinding of the study participants

• To reduce the risk of bias in the study

Which of the following is a measure of association used in a case-control study?

• Odds ratio

• Relative risk

• Attributable risk

• Incidence rate

Which of the following is a characteristic of a good surveillance system?

• Low sensitivity

• High cost

• Timely reporting

• Lack of feedback to stakeholders

The incidence of a disease is the number of _______________ cases of the disease in a defined population during a specified time period.

The process of identifying and characterizing the distribution of a disease in a population is known as _______________.