What is a common problem with longitudinal designs?
A) Attrition (participants dropping out)
B) Participants may be unwilling to complete the survey several times.
C) Long-term studies are often expensive.
D) All of the above
Answer: D
Political Science
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The ________ refers to the average citizen's annual income
A. per capita net domestic product index B. consumer price index C. stock market index D. per capita gross domestic product E. gross national product
Political Science
Which of the following is NOT a foreign policy power of Congress outlined in Article I of the Constitution?
a. Define and punish piracy on the high seas b. Provide and maintain a navy c. Provide for calling forth the militia to execute the laws of the Union d. Appoint ambassadors
Political Science