What changes did the Bureau make to the conceptualization and operationalization of race in the 2000 census?

First, provide a definition of the terms conceptual definition and operational definition.
Next, conceptualize and operationalize the variable race.
Read the Census Bureaus report on race at: http://www.census.gov/prod/2001pubs/c2kbr01-1.pdf
Answer the following questions after reading the report:
What changes did the Bureau make to the conceptualization and operationalization of race in the 2000 census?
Why did the Bureau make these changes?
Could the difference in operationalization produce different conclusions about race?
Does the Bureaus conceptualization and operationalization of race coincide with yours? If so, how? If not, what is different?
NEEDS TO BE IN APA FORMAT and at least 2.5 PAGES not including the title page and reference page