1. Research Methods
Quiz 5

2. 1. Which kind of observation design should I do for each of these
1. Which kind of observation design should I do for each of these? Explain briefly. (2 points each)
a. I want to know how people would react if an accident happened in front of a crowd versus just one person.
b. I want to know how door holding behavior differs as a function of the gender of the person going through the door.
I want to know how people who use heroin support one another in their addiction.

3. 2. What is random sampling
2. What is random sampling? Which kind of validity (internal/external) does it help to increase and how does it do that? (2 points)
3. What is random assignment? Which kind of validity (internal/external) does it help to increase and how does it do that? (2 points)

4. Get out your grading pens/pencils…