The US Census Bureau, the Center for Disease Control, and the the U.S

Multiple Choice

The U.S. Census Bureau, The Center for Disease Control, and The U.S. Citizenship and Immigration Services, all collect statistical information. Dr. Hysock conducts her research program by analyzing these already available sources of information. Dr. Hysock is using ______.

A) secondary data sources
B) participant observation
C) ethnographic research design
D) nonrandom sampling