Lecture 4

Question 1

What is consent

Answer 1

voluntary agreement or permission given by one who is considered capable of making an informed decision

Question 2

What is assent

Answer 2

agreement or approval given by a person who may not have the legal capacity to provide full consent (not fully competent to make informed decision)

Question 3

What are cross sectional studies

Answer 3

• best to determine prevalence
• study multiple outcomes and exposures
• usually questionnaires

Question 4

What are advantages of cross sectional

Answer 4

• can be highly generalizable
• less costly, quick, no follow up
• can give important directions for further research

Question 5

What are disadvantages of cross sectional

Answer 5

• can’t establish temporal relationship
• not incident
• rare diseases can’t be studied