1. What is self-selection bias? How might we avoid this?

2Give an example of each type of error listed in Exhibit 9.1."

3 Name some common objectives of cross-sectional surveys.

(Discussion question 1) True or False? Explain. "When asking survey questions about socially desirable behaviors, it is possible to eliminate social desirability bias."

(Discussion question 2) The wording of time frames can help reduce social desirability bias in survey responses. Read the following questions and then discuss when it might be beneficial to use short vs. long time horizons in the framing of questions.

Have you ever received a speeding ticket?

Within the last year, have you received a speeding ticket?

Within the last month, have you received a speeding ticket?

Within the last week, how often did you exercise for one hour or longer?

Within the last year, how often do you exercise for one hour or longer?

Have you ever exercised for one hour or longer?