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EXW 344 Module 1 Review Exam Questions and Answers
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EXW 344 Module 1 Review Exam Questions and Answers
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EXW 344 Module 1 Review ExamQuestions and Answers
Which of the following describes prevalence?
a. The number of new cases within a certain time period
b. The number of deaths or remissions of disease within a certain time period
c. The number of person-vears within a given observation period
d. The number of cases within the population at given point in time or time window -
Answers -c
In a retrospective cohort study, the exposure and outcomes have already happened.
True
False - Answers -True
An exposure is also known as the explanatorv variables or independent variables. An
example would be exercise.
True
False - Answers -True
A retrospective case-control study requires researchers to find people with the outcome
or disease and people without the outcome and to retrospectively ask those people
about or somehow examine their past exposure to the independent variable, for
instance exercise.
True or false - Answers -True
Cohort studies have a higher potential for reverse causality influencing the outcomes
than case-control or cross-sectional study designs. - Answers -False
Cohort studies have less potential for reverse causality because the long follow up time
all deaths in the first 10 ears can be discounted
Incidence refers to the number of new cases within a given time period. - Answers -True
What kind of study design is this:
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