Chapter 4 population

Dual-system estimation

A method of evaluating a census by comparing respondents in the census with respondents in a carefully selected postenumeration survey or through a matching with other records.

Vital Statistics

Data referring to the so-called vital events of life, especially birth and death, but usually also including marriage, divorce, and sometimes abortion.

De facto population

The people actually in a given territory on the census day.

De jure population

The people who legally "belong" in a given area whether or not they are there on census day.

Content error

an inaccuracy in the data obtained in a census; possibly an error in reporting, editing, or tabulating.

Census of population

an official enumeration of an entire population, usually with details as to age, sex, occupation and other population characteristics.

American Community Survey

an ongoing "continuous measurement" survey conducted by the U.S Census Bureau to track the detailed population characteristics of every American Community.

Geodemography

analysis of demographic data that have been georeferenced to specific locations.

Sampling error

error that occurs in sampling due to the fact that a sample is rarely identical in every way to the population from which it was drawn.

Coverage error

the combination of undercount and overcount.

Demographic balancing equation

the formula that shows that the population at time 2 is equal to the population at time 1, plus the births between time 1 and 2, minus the deaths between time 1&2, plus the in-migrants between time 1&2

Differential undercount

the situation that occurs in a census when some groups of people are more likely to be underenumerated than other groups.