Stigma associated with certain diseases and conditions can affect the accuracy of a death certificate.

Instruments, such as questionnaires and surveys, must be validated if you wish to use them in a study

Use the table below to calculate the crude death rate per 1,000 for population X. Age group Size population X Number of deaths 0-20 3000 3 20-55 11,000 110 >55 13,000 1300

An increase in daily exercise can decrease the risk of cardiovascular disease. This association is best described as:

When data are normally, a parametric test is not necessary.

A steep upslope and a more gradual downslope are characteristic of this type of epidemic curve.

Use the table below to calculate the PMR for malaria Cause number of deaths Malaria 252,350 Tuberculosis 178,700 Cancer 322,400 HIV 224,342  

The study design you choose must match the type of data you will be collecting and the questions you are asking.

Which of these helps you compare risk factors without concern about the amount of disease in a population?

When interviewing subjects in an outbreak, distance from an event makes the data