A variable that measures education in number of years is an example of the _________ level of measurement.

American unemployment reached _____ by 1933, in the depths of the Great Depression

A) 5% B) 10% C) 25% D) 50% E) 65%

Like the vote, public opinion has its political effect as an aggregate phenomenon, but it also shares which of the following similarities to the vote?

A. It cannot be measured at the individual level. B. It is no more than the sum of its individual parts. C. It rarely factors in policy decisions. D. There is no need to understand the basis of individual opinions.