Sample characteristics: Venezuela

Census characteristics

1971

1981

1990

Title

X Censo General de Población y Vivienda,

XI Censo de Población y Vivienda

XII Censo General de Población y Vivienda

Census agency

Dirección General de Estadística y Censos Nacionales,
Ministerio de Fomento

Oficina Central de Estadística e Informática

Population
universe

—

People who usually reside in the country.

—

De jure or de
facto

—

De Jure

De Jure[1]

Enumeration unit

Dwelling

Dwelling

Dwelling

Census day

February 11, 1971

October 21, 1981

October 21, 1990

Field work period

More than one day.

October 19 to November 20, 1981. People living in
areas with 1000 or more inhabitants were interviewed on October 21
from 6AM to 7PM. Individuals were required to stay home during those
hours. People living in communities with less than 1000 inhabitants
were interviewed throughout the month.

—

Enumeration forms

Three types of enumeration forms: 1) A general
(basic) questionnaire; 2) A longer questionnaire for a sample (not
clear how the sample was chosen); 3) and an individual questionnaire
for individuals: 3.1) living in large collectivities (15 or more
people); 3.2) Visitors in family dwellings; 3.3) To complete
interviews of household members.

Single enumeration form that requested information on
dwellings, households and individuals.

A basic and a long enumeration form requesting
information on dwellings, households and individuals.

Type of field
work

Face to face interview (direct enumeration) conducted
by trained personnel.

Face to face interview (direct enumeration).

by trained personnel.

Respondent

Every member of the family individually. Otherwise,
the head of the household, his wife or an adult. Children, neighbors
and servants were only to be interviewed in the absence of the
above. Guests and boarders should be interviewed directly if
possible.

If possible, every person individually. Otherwise
anyone that claims to be able to give information on the dwelling
and the family. Children, servants, and neighbors should not provide
the information of absent people. In hotels, pensions, hospitals,
etc. every member of the dwelling should be interviewed.

If possible, every person individually (except
children). Otherwise the head of the household or the member that
can give the most reliable information.

Microdata sample characteristics

1971

1981

1990

Microdata source

Celade

Celade

Celade

Sample design

Systematic sample was drawn from the 20% stratified
sample developed by the statistical office.

Systematic sample was drawn from the 20% stratified
sample developed by the statistical office.

Systematic sample was drawn from the 20% stratified
sample developed by the statistical office.

Sample unit

Household

Household

Dwelling

Sample fraction

10%

10%

10%

Sample size (person
records)

1,158,527

1,441,266

1,803,953

Sample weights

Computed by census agency and should be used for most
types of analysis. Weights were inflated to adjust for the lower
sample fraction of the IPUMS sample.

Self-weighting.

Expansion factor = 10.

Computed by census agency and should be used for most
types of analysis. Weights were inflated to adjust for the lower
sample fraction of the IPUMS sample.

Units identified

1971

1981

1990

Dwellings

No

No (dwellings in original sample are interpreted as
households in IPUMS)

Yes

Vacant units

Yes

Yes

Yes

Households

Yes

Yes

Yes

Individuals

Yes

Yes

Yes

Group quarters

No

Yes

Yes

Unit definitions

1971

1981

1990

Dwellings

A dwelling is a place of abode for persons that is
structurally separate and independent. There are two possibilities:
(a) that it has been constructed, built, converted, or made
available for shelter for people, only if it is not being used for
entirely different purposes at the time of the census, and is
occupied by persons the night before the Census Day in the case of
an improvised or mobile shelter. The other possibility is (b) a
building that is not meant for human habitation but is being used in
that capacity at the time of the census.

every building or premises that is structurally
independent and separate and that has been constructed, built,
converted, or made available for permanent or temporary shelter for
people. Buildings not constructed for human habitation, but at the
time of the Census are found to be inhabited, temporarily or
permanently, by persons. Any type of shelter, fixed or mobile (cave,
tent, bridge, boat/vessel, trailer, etc.), that is occupied as a
place of shelter, temporarily or permanently, the night before the
Census Day.

Building constructed to provide temporary or
permanent lodging for people. Also considered as dwellings: any
building NOT built specifically for human habitation but is used for
that purpose on the Census day.

Private
Households

A dwelling used, or meant to be used, as a separate
and independent domicile or place of abode for one or more families
or other group of persons, related or not, living together in a
family-like system or a person who lives alone.

A group of people with or without family
relationships that share the same dwelling (or live under the same
roof) living together within a family lifestyle, sharing the same
services and especially sharing principal meals.

House with yard/garden, house, apartment in building,
apartment in house, tenement, ranch, peasant ranch, other.

Group Quarters

A dwelling made up of a building or group of
buildings used, or meant to be used, as a place of lodging for a
group of people, usually not related, who live together for reasons
of health, education, religion, discipline, work and others.
Collective dwellings usually have common services for the occupants
such as kitchen, toilets, bathrooms, and living rooms and
bedrooms.

A group of persons usually residing in the same
dwelling. The members are usually not related but they live together
for reasons of health, education, discipline, religion, work,
etc.

Hotel, encampment, student residence, jail-prison,
psychiatric care center, hospital-sanatorium-clinic, shelter for
disabled, religious institution, boarding school, military
institution, school -other type.

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