Epi

Question 1

Case-control

Answer 1

patients w disease (cases) and without that disease (controls)
- determining their previous exposure status.

Question 2

Cross sectional

Answer 2

prevalence study.

• measurement of exposure and outcome.
• snapshot study design that frequently uses surveys.

Question 3

RCT

Answer 3

directly compares two or more treatments.

subjects are randomly assigned to an exposure (e.g., a medication) or placebo and then followed for the development of the outcome of interest.

Question 4

Prospective cohort

Answer 4

selecting a group of individuals (i.e., cohort), determining their exposure status, and then following them over time for development of the disease of interest.

Question 5

Values consistent

Answer 5

Precise/ reliable

Question 6

Values close to the test values

Answer 6

Accurate / valid