8. What is a double-blind experiment? (p.150) Why is it necessary? (p.150) (book)
9. **What is the Solomon four-group design? (p.153-154) What major threat to internal validity does it specifically address? (book and lecture)-Can use picture from Slides
10. Be able to define key terms for the chapter. (the rest of the terms are in the previous questions)
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Chapter 7 Survey Research
13-15, 18, 21-25
13. What special problemsdo you have to plan for in the design of a web-based survey?
