national statistical office, thailand 2-6 december 2013, hanoi, viet nam census evaluation
TRANSCRIPT
National Statistical Office, Thailand
2-6 December 201 3 , Hanoi, Viet Nam
Census Evaluation
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1910-1947 Conducted by Ministry of
Interior, called “Household Census”
1960-2010 Conducted by National
Statistical Office
1970 Added Housing
2010 100100thth Anniversary of Anniversary of
Thai Population Thai Population
CensusCensus
Summary of Population and Housing census
“Everyone is counted” in the 2010,
Population and Housing Census :
A big challenge in the decade
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1. Improve field operation in big cities
2. Increase local people and organizations
participation
3. Solve the problem on international migration
4. Improve data capturing/processing/
dissemination system
5. Improve quality control
100100th Anniversary Population Census in th Anniversary Population Census in
ThailandThailand
2010 Population and Housing census
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Census Objective
To collect basic information on
population and living quarters
To provide data for small administrative units
To measure changes of population and
living quarters over 10 years
2010 Population and Housing census
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Population Pyramid
20102000
Male Female Male Female
2010
Male Female
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To provide user with a level of confidence when utilizing the data
The objectives of the census data evaluation ;
Measure accuracy of the census data
To explain errors in the census results
To improve the quality of the next census
Used of products of evaluation ;
Identify source of error (non-sampling error)
2010 Population and Housing census
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The census evaluation program carried out by NSO. ;
Organization of evaluation
Social Statistical Bureau
Statistical Forecasting Bureau
Policy and Statistical Technique Bureau
(Population Statistical Group)
(Statistical Evaluation Group)
2010 Population and Housing census
(To analysis specific item)
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Methods used to evaluate census data
Demographic analysis of census results
Census data was evaluated by using
● Analysis of internal consistency check
Comparison with other household surveys
(tabulation , age-sex distribution, age pyramid)
● Using previous censuses
(population growth, balancing equation,..)
Comparison with administrative record
2010 population and housing census
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Methods used to evaluate census data
Post enumeration survey (PES)
● Sample Design : Stratified One-Stage Sampling
● Matching results ● Listing : evaluated coverage error
● Enumeration : evaluated content error
● To measure level of both coverage and content errors
(age, sex, marital status, completed education)
(sample unit was enumeration area : EA : 2,159 EA)
Census data was evaluated by using
2010 population and housing census
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Report of Population Projections for Thailand, 2010-2040 ; estimated base on the 2010 census results
There was a significant improvement in the reporting of the age-sex structure of the population used in related products
Main results of evaluate census data
Evaluation of age-sex structure:
2010 population and housing census
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Internal evaluation of marital status data showed high consistency in the distribution of the population by marital status (which represented by the population who were single, married, widowed and divorced).
External evaluation of marital Status data showed consistency of marital status data in the 2010 census with the data of 2009 Reproductive Health Survey.
Evaluation of marital status data :
Main results of evaluate census data
2010 population and housing census
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Evaluation of employment data:
Main results of evaluate census data
There was consistency between employment data in the 2010 census and the labor force survey according to the different characteristic of
Employed, Unemployed person
Work status
Industry sector
2010 population and housing census
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Challengers in conducting census data evaluation
Developing Post - Enumeration survey Technic
● Matching exercise
● Adjust census figure
2010 population and housing census
● Tool for using to collect data
(manual to computer)
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2010 population and housing census
PES :
Main results of evaluate census data
Net Coverage error rate :NCR
Coverage error
Completeness rate :CR
Household
Net Coverage error rate :NCR
Completeness rate :CR
Population
2.3 %
77 %
4.0 %
72 %
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2010 population and housing census
PES :
Main results of evaluate census data
Degree of Agreement :DA
Content error
Age
Degree of Agreement :DALevel of ED. Attainment
Degree of Agreement :DAMarital status
Degree of Agreement :DASEX
mor
e
than
80%Less than
80%
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Thank You for Your
Attention
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Data collection usingData collection using
Data collection periodData collection period
1-30 September 2010
Census 2010 : the first time that NSO has several channels for people to fill in their information 1. Face-to-face interview
2 . Self-enumeration
(Drop off and Pick up or mail back)
3 . Internet
4 . Phone interview
(Multi Modal Method)
Census Data Collection
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Census Publicity Materials
Wall & Table calendar, Car sticker, and others
New Year Card
Car sticker
Shopping bagPlastic fan
Jacket, Cap,
Bag
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Solve the problem on international migration
• Developing a survey technique and outreach strategy for incorporating migrant population in Thailand’s National Census,2010.
: Pilot study under technical
assistance(2008) by World Bank and IOM
Planning for 2010 PHC
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Improve Data Capture/ Processing &Dissemination System
• Increse the use of ICR• Develop more user-friendly system : Census Info, Data Warehouse
• Publish more analytical papers : collaborate research with academic institutions
• Establish network with academic institutions :create more in-depth analysis of PHC results
• Promote the use of PHC at national, provincial
and local levels
Planning for 2010 PHC
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Quality Control
1) Intensive training: theoretical and practical ( 4 days)
2 ) Field supervisors monitor the data collection process- Re-interviews (2 households/EA)
- Field edit checks of the data for completenessand consistency
3 ) Scanning of the questionnaire using ICR
4 ) Centralized editing for data correction(Manual and Machine Editing) 5 ) Post Enumeration Survey (PES)
Planning for 2010 PHC
After the completion of the census data collection,
a post enumeration survey (PES) was carried
out by the National Statistical Office (except
Bangkok, Nonthaburi, Samut Prakan, and Samut
Sakhon).
A stratified one-stage sampling was adopted in each
area (systematic sampling) ; the selected samples
were 2,159 enumeration areas. The purposes of the
PES were to determine the completeness and the
accuracy and to evaluate the coverage error and the
content error of the census data.