302 Encountering evidence Flashcards
1
Q
What is the difference between descriptive and analytic studies?
A
Descriptive describe the results
Analytic test a hypothesis
2
Q
What is prevalence?
A
Number of people with a condition in a defined population and at a given point in time Eg. Point, period, and lifetime
3
Q
What is the purpose of a cross-sectional study?
A
It establishes prevalence
advantages: cheap, quick
Disadvantages: not useful with rare diseases
