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Sample characteristics: Philippines

Census/survey characteristics
Type Census
Title 1990 Census of Population and Housing
Statistical agency National Statistics Office
Population universe 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.
De jure or de facto De jure
Census/survey day May 1, 1990
Field work period 20 days
Questionnaire 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)
Type of fieldwork House-to-house visit and personal interview
Microdata sample characteristics
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.
Sample fraction 0.1
Sample size (person records) 6013913
Sample weights Calculated by national statistical office.
Units identified in microdata
Dwellings Yes
Vacant units Yes
Households Yes
Collective dwellings Yes
Smallest geography Municipalities with 20,000+ population combined by IPUMS
Unit definitions
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.
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.
Collective dwellings 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.