Considering the difficulties, the Census Bureau does a remarkably good job at counting people. This article discusses techniques for adjusting the census. If there is a large undercount, these techniques may be accurate enough for adjustment. With a small undercount, adjustment could easily...

Ecological regression is a statistical mainstay in litigation brought under the Voting Rights Act of 1965. The technique is discussed in the context of a suit against the County of Los Angeles that came to trial in 1990. Ecological regression depends on very strong assumptions about political...

A sample covering 204,394 blocks from the 1990 U.S.Census permits measurement of residual heterogeneity from local area to local area after controlling by stratification for demographic characteristics such as race, ethnicity, age, sex as well as geographic characteristics such as region and...

One form of error that can affect census adjustments is correlation bias, reflecting people who are doubly missing—from the census and from the adjusted counts as well. This article presents a method for estimating the total national number of doubly-missing people and their distribution...

Considering the difficulties, the Census Bureau does a remarkably good job at counting people. There are two current techniques for evaluating or adjusting the census: (a) demographic analysis uses administrative records to make independent population estimates, which can be compared to census...