Final answer:
The United States Census Bureau and the National Center for Education Statistics (NCES) are two organizations that provide extensive secondary data available for downloading and use in a variety of research studies.
Step-by-step explanation:
Secondary Data Sources for Research Studies
Two prominent organizations that provide secondary data suitable for a variety of research studies include:
- United States Census Bureau: An agency that provides data about the people and economy of the United States. Their data includes population demographics, economic indicators, and more.
- National Center for Education Statistics (NCES): The primary federal entity for collecting and analyzing education-related data in the U.S. This includes information on educational institutions, student assessments, and more.
Secondary data, such as population statistics or educational outcomes, can be instrumental in many study areas, from public health to economic analyses. The availability of such data online makes it accessible for researchers around the world.