Deck 3: Study Designs

Question 1

Name and explain three concepts that form a basis for epidemiological research.

Answer 1

Person, place, and time-the who, where, and when of the cases in a study

Question 2

Explain what is meant by a descriptive study.

Answer 2

It does as the name suggests, it describes. Inferences can't be drawn from the results.

Question 3

What is the difference between a case report and a case series?

Answer 3

A case report provides the relevant features of a particular case; for example, signs and symptoms. A case series concerns a number of related cases.

Question 4

What is meant by a cross-sectional study design?

Question 5

What are some advantages and disadvantages of a case-control study?

Question 6

What are some advantages and disadvantages of a cohort study?

Question 7

What is the main difference between a cohort study and a case-control study?

Question 8

Describe a prospective cohort study.

Question 9

Describe a retrospective cohort study.

Question 10

What is a key characteristic of a meta-analysis?

Question 11

What is meant by the term ecological study?

Question 12

What does single-blinded mean in an RCT?

Question 13

What does double-blinded mean in an RCT?

Question 14

How is an odds ratio helpful in a case-control study?

Question 15

How is a relative risk helpful in a case-control study?

Question 16

Assume that you have an RR of 5.9 in cohort study. What does that mean?

Question 17

Explain the term crude in the concept of a crude death rate.

Question 18

What is the meaning of attack rate?

Question 19

Differentiate between external and internal validity.

Question 20

Explain what confounding is.

Question 21

Define bias in the context of an epidemiologic study.

Question 22

What is selection bias?

Question 23

What is publication bias?

Question 24

What is information bias?

Question 25

What is recall bias?