Have you ever played a video game breaking the all-time high score only to find that you were never able to duplicate that performance? This is an example of _________, which is a threat to internal validity

a. history
b. maturation
c. regression to the mean
d. selection


C

Political Science

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According to archeologists, populations began to settle in fertile places

a. because of increased population density. b. because of slavery. c. during the 5th century B.C.E. d. in Europe first.

Political Science

Which of the following is a component of standard operating procedures?

A. applying what you know of general principles B. ensuring efficient outcomes C. reconsidering goals D. challenging policy precedents

Political Science

What are the features of Social Security and the income security programs in the United States? Why was this structure created, and what are the benefits? Specifically, what are the problems with Social Security, and what solutions are available to

government to solve them? What will be an ideal response?

Political Science

Dag Hammarskjöld, secretary general of the United Nations from 1953 to 1961, was a major architect of ________.

a. arbitration b. collective security c. trusteeship d. preventive diplomacy

Political Science