Chapter 4

population registers

a list of all people in a country on which are recorded all vital events for each individual , typically birth, death, marriage, divorce, and change of residence

population registers

a list of all people in a country on which are recorded all vital events for each individual, typically birth, death, marriage, divorce, and change of residence.

sample surveys

a method of collecting data by obtaining information form a sample of the total population, rather than by a complete census.

dual-system estimation

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

demographic analysis

a method of evaluating the accuracy of a census by estimating the demographic components of change since the previous census and comparing it with the new census count.

geo-referenced

a piece of information that includes some form of geographic identification such as precise latitude-longitude coordinates, a street address, Zip code, census tract, county, state, or country.

Public Use Microdata Samples

a random sample of individual census records that have been stripped of personally identifying information.

non sampling error

an error that occurs in the enumeration process as a result of missing people who should be counted, costing people more than once, respondents providing inaccurate information, or recording or processing information inaccurately.

content error

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

American Community Survey

an outgoing "continuous measurement" survey conducted by the U.S. Census Bureau to track the detailed population characteristics of every American community; designed to allow the long form to be dropped from the decennial census in 2010.

geodemographics

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

spatial demography

any analysis of population data that takes location into account by using georeferenced information.

geographic information systems

computer based system that allows the user to combine maps with data that refer to particular places on those maps and then to analyze those data and display the results as thematic maps or some other graphic format.

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

administrative data

demographic information derived from administrative records, including tax returns, utility records, school enrollment, and participation in government programs.

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 (the percentage of a particular group or total population that is inadvertently not counted more than once in the census) and overcoat (people who are counted more than once in the census)

usual residence

the concept of including people in the census on the basis of where they usually reside.

net census undercount

the difference between the undercount and the 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 and 2, plus the in-migrants between time 1 and 2, minus the out-migrants between time 1 and 2.

Census of population

the official enumeration of an entire population, usually with details as to age, sex, occupation, and other population characteristics; defined by the United Nations as "the total process of collecting, compiling, and publishing demographic, economic and social data pertaining, at a specified time or times, to all persons in a country or delimited territory."

de facto population

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

de jure population

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

intercensal

the period between taking of censuses

differential undercount

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

administrative records

with respect to migration, this refers to forms filled out for each person entering the U.S. from abroad that are then collected and tabulated by the U.S. Citizenship and Immigration Service.