week 4 study designs

Question 1

what is the time span of a cross-sectional study

Answer 1

one point in time : snapshot

Question 2

what is a cross sectional study

Answer 2

1. define a population
2. gaher data on exposure and disease
3. see who get the disease and who does not and if exposed or not
   exposure and outcome happen at the same time

Question 3

cross sectional studies are the best way to the determine the….

Answer 3

prevalence of a disease

Question 4

can a cross section study multiple outcomes and exposures

Answer 4

yes

Question 5

main method of cross sectionals

Answer 5

surveys

Question 6

Advantages of cross sectionals

Answer 6

highly generalizable
population estimate
less costly and quick

Question 7

limitations of cross sectionals

Answer 7

cannot establish a temporal relationship between the exposure and outcome
- difficult to separate cause and effect
- cannot study rare conditions

Question 8

often cross sectionals are the first look at the association between

Answer 8

an exposure and outcome