Is a reduction in the number of research participants as some drop out of the study over time.
a) attrition
b) experimenter bias
c) single blinding
d) generalizability

In the kingdom of saudi arabia the government controls every aspect of oil production which makes up the majority of the country's economy. while other businesses are owned by individuals, the biggest segment of saudi arabia's economy is oil production. saudi arabia's economy would best be described as a) entirely market. b) almost entirely command. c) a mixture between just market and traditional. d) a mixed economy with large amounts of command.

Explain the correlation between industrialization and urban areas

How did nationalism transform the identity of africans