3 scenarios, answer the following questions about each:

1) Is IRB approval required?Why or why not?; 2) What type of IRB approval is required - Exempt, Expedited, or Full Review?Why?There is information in this week's materials about the IRB process. There is also information about review levels in Week 1.

Scenario 1.A researcher is interested in learning whether or not participation in an exercise program improves math grades in 10th grade girls.The researcher has received permission from a local high school to do the study.

Scenario 2.A researcher will be using the census data to determine whether or not there is a correlation between the number of persons living in a household and size of the community.

Scenario 3.A researcher wants to examine the effects of a rape awareness worshop on the anxiety level of a group of college women.The researcher plans to assign a group of 50 women to the rape awareness group and 50 to a control group that receives a workshop on a non-related topic.Anxiety levels of the two groups of women will be measured 3 times -- one week before the workshop, immediately after the workshop, and 30 days after the workshop.All women must be at least 18 years of age to enroll in the study.