Sample characteristics: Philippines

Census characteristics

1990

1995

2000

Title of census

1990 Census of Population and Housing

1995 Census of Population

2000 Census of Population and Housing

Census Agency

National Statistics Office

National Statistics Office

National Statistics Office

Population

Filipino nationals regardless of whether they are
residing in Philipines at the time of the census and citizens of
other countires having their usual residence in the Phillipines or
those whose temporary residence will exceed a year from the time of
their arrival.

Filipino nationals regardless of whether they are
residing in Philipines at the time of the census and citizens of
other countires having their usual residence in the Phillipines or
those whose temporary residence will exceed a year from the time of
their arrival.

Filipino nationals regardless of whether they are
residing in Philipines at the time of the census and citizens of
other countires having their usual residence in the Phillipines or
those whose temporary residence will exceed a year from the time of
their arrival.

Universe

Microdata are available for 100% and 10% samples

Microdata are available for 100%

Microdata are available for 100% and 10%
samples

De jure or de
facto

De jure

De jure

De jure

Enumeration unit

Households

Households

Households

Census day

May 1, 1990

September 1, 1995

May 1, 2000

Field work period

20 days

—

Original plan 20 days. Only 30% of the provinces
finished the enumeration on the May 24th.

Enumeration forms
used

Three forms were used; the nonsample households were
interviewed using the Common Household Questionnaire (CPH Form 2)
while the Sample Household Questionnaire (CPH Form 3) was used for
the sample households, Institutional households were enumerated
using the Institutional Population Questionnaire (CPH Form 4)

Form 1: Listing Sheet, Form 2: Household
Questionnaire, and Form 3: Institutional Population Questionnaire

Three used: CPH Form 2- Common Household
Questionnaire; 3- Sample Household questionnaire;and 4 -
Instituttional Population Questionnaire

Type of field
work

House-to-house visit and personal interview

House-to-house visit and personal interview

House-to-house visit and personal interview

Coverage

100%

—

100%

Microdata sample characteristics

1990

1995

2000

Microdata source

National Statistics Office

National Statistics Office

National Statistics Office

Sample design

The sampling rate, or the proportion of households to
be selected as samples within each enumeration area (EA), varies
from one city/municipality to another. It can be either 100%, 20% or
10% depending on the 1990 expected population of the municipality or
city.

Systematic sampling

Systematic cluster sampling

Sample unit

Household

Household

Household

Sample fraction

10%

10%

10%

Sample size (person
records)

6,013,913

6,864,758

7,417,810

Sample weights

Calculated by national statistical office.

Self-weighting (expansion factor=10)

Calculated by national statistical office.

Units Identified in Microdata

1990

1995

2000

Dwellings

Yes

Yes

Yes

Vacant units

Yes

Yes

Yes

Households

Yes

Yes

Yes

Individuals

Yes

Yes

Yes

Group quarters

Yes

Yes

Yes

Settled/Unsettled
Population

No

No

No

Unit Definitions (Census)

1990

1995

2000

Dwellings

A housing unit is a structurally separate and
independent place of abode which, by way it has been constructed,
converted or arranged, is intended for habitation by one
household.

A housing unit is a structurally separate and
independent place of abode which, by the way it has been
constructed, converted, or arranged, is intended for habitation by a
household.

A housing unit is a structurally separate and
independent place of abode which, by the way it has been
constructed, converted or arranged is intended for habitation by one
or more households. Structures or parts of structures not intended
for habitation such as commercial, industrial, and agricultural
buildings, or natural and man-made shelters such as caves, boats,
abandoned trucks, culverts, etc., but used as living quarters by
households are also considered as housing units.

Households

A household is a social unit consisting of a person
living alone or a group of persons who (1) sleep in the same housing
unit and (2) have a common arrangement for the preparation
and
consumption of food.

A household is a social unit consisting of a person
living alone or a group of persons who sleep in the same housing
unit and have a commong arrangement in the presparation and
consumption of food.

A household is a social unit consisting of a person
living alone or a group of persons who (1) sleep in the same housing
unit and (2) have a common arrangement for the preparation
and
consumption of food.

Group quarters

Institutional living quarters are those structurally
separate places of abode intended for habitation by large groups of
individuals. Some examples are in operation such as hotels, motels,
dormitories, lodging houses, seminaries, mental hospitals, etc.

Institutional population comprises persons who are
found living in institutional living quarters. They may have their
own families or households elsewhere but at the time of the census
they are committed or confined in institutions, or they live in
institutional living quarters and are usually subject to a common
authority or management, or are bound by either a common public
objective or a common personal interest.

Institutional population comprises persons who are
found living in institutional living quarters. They may have their
own families or households elsewhere but at the time of the census
they are committed or confined in institutions, or they live in
institutional living quarters and are usually subject to a common
authority or management, or are bound by either a common public
objective or a common personal interest.

Unsettled
population

n/a

n/a

n/a

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