Transcript Census Evaluation National Statistical Office, Thailand 2-6 December 2013 , Hanoi, Viet Nam.

Census Evaluation
National Statistical Office, Thailand
2-6 December 2013 , Hanoi, Viet Nam
Summary of
Population and Housing census
1910-1947 Conducted by Ministry of Interior,
called “Household Census”
1960-2010
Conducted by National Statistical
Office
1970
Added Housing
2010
100th Anniversary of
Thai Population Census
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“Everyone
is counted” in the 2010,
Population and Housing Census :
A big challenge in the decade
2010 Population and Housing census
100th Anniversary Population Census in Thailand
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
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2010 Population and Housing census
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
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Population Pyramid
2000
Male
2010
Female
Male
Female
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2010
Male
Female
2010 Population and Housing census
The objectives of the census data evaluation ;
Used of products of evaluation ;
 Measure accuracy of the census data
 Identify source of error (non-sampling error)
 To provide user with a level of confidence when
utilizing the data
 To explain errors in the census results
 To improve the quality of the next census
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2010 Population and Housing census
Organization of evaluation
The census evaluation program carried out by NSO. ;
Social Statistical Bureau
(Population Statistical Group)
Statistical Forecasting Bureau
(To analysis specific item)
Policy and Statistical Technique Bureau
(Statistical Evaluation Group)
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2010 population and housing census
Methods used to evaluate census data
Census data was evaluated by using
Demographic analysis of census results
● Analysis of internal consistency check
(tabulation , age-sex distribution, age pyramid)
● Using previous censuses
(population growth, balancing equation,..)
Comparison with other household surveys
Comparison with administrative record
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2010 population and housing census
Methods used to evaluate census data
Census data was evaluated by using
Post enumeration survey (PES)
● To measure level of both coverage and content errors
● Sample Design : Stratified One-Stage Sampling
(sample unit was enumeration area : EA : 2,159 EA)
● Matching results
● Listing : evaluated coverage error
● Enumeration : evaluated content error
(age, sex, marital status, completed education)
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2010 population and housing census
Main results of evaluate census data
Evaluation of age-sex structure:
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
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2010 population and housing census
Main results of evaluate census data
Evaluation of marital status data :
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.
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2010 population and housing census
Main results of evaluate census data
Evaluation of employment 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
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2010 population and housing census
Challengers in conducting census data evaluation
Developing Post - Enumeration survey Technic
● Tool for using to collect data
● Matching exercise
(manual to computer)
● Adjust census figure
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2010 population and housing census
Main results of evaluate census data
PES : Coverage error
Household
Net Coverage error rate :NCR
2.3 %
Completeness rate :CR
77 %
Population
Net Coverage error rate :NCR
4.0 %
Completeness rate :CR
72 %
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2010 population and housing census
Main results of evaluate census data
PES : Content error
Age Degree of Agreement :DA
SEX Degree of Agreement :DA
more
than
Marital status Degree of Agreement :DA 80%
Level of ED. Degree of Agreement :DA
Attainment
Less than
80%
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Thank You for Your Attention
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Census Data Collection
Data collection using (Multi Modal Method)
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
Data collection period
1-30 September 2010
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Census Publicity Materials
Wall & Table calendar, Car sticker, and others
Shopping bag
Plastic fan
New Year Card
Car sticker
Jacket, Cap,
Bag
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Planning
for 2010 PHC
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
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Planning for 2010 PHC
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
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Planning for 2010 PHC
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 completeness
and consistency
3) Scanning of the questionnaire using ICR
4) Centralized editing for data correction
(Manual and Machine Editing)
5) Post Enumeration Survey (PES)
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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.