The United States gives a country monetary assistance to help run free and fair elections. This is an example of which type of aid?

Why does a good experiment include a control group?

a. it increases the number of people in the study, and hence, the generalizability of the results b. it gives us information about how participants would perform without experiencing the experimental treatment c. it eliminates the effects of external validity d. control groups have been an established part of scientific tradition for many decades

Nearly all of the developed countries of the Global North have __________.

A. strong social market systems B. mixed economies C. export economies D. low rankings in the Human Development Index