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.