In a(n) ____ study, groups of people are studied to examine the ...

[pepyto]

In a(n) ____ study, groups of people are studied to examine the relationship between exposure and disease.
 a. trend
 b. ecological
 c. cohort
 d. case-control

Question 2

In a(n) ____ study, exposure factors and outcomes are observed or measured at a single point in time in a sample from the population being studied.
 a. cross-sectional
 b. experimental
 c. randomized controlled
  d. cohort

[Mollythedog]

Answer to Question 1

b

Answer to Question 2

a

[pepyto]

TY

[Mollythedog]

You're welcome