IPUMS Work Process

1
IPUMS-International Data Series http//internati
onal.ipums.org
Matt SobekMinnesota Population
Centersobek_at_pop.umn.edu
2
IPUMS-International Stages
1) Sample processing
2) Integration
3) Dissemination
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Sample Processing
1) Reformatting and diagnostics

• Standardize data structure
• Run tests on data

2) Sampling and donation

• Draw sample
• Correct structural errors in data

3) Confidentialize

• Suppress low level geography
• Swap households across geographic units
• Suppress sensitive variables
• Recode very small categories and top-code

Result scientific-use dataset
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IPUMS-International Stages
1) Sample processing
2) Integration

• Data harmonization
• Variable descriptions
• XML-tagged metadata
• Constructed variables

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Data Harmonization Marital Status
China 1982
Colombia 1973
Kenya 1989
Mexico 1970
U.S.A. 1990
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Variable Description Marital Status
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Enumeration Form Text (English)
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XML-Tagged Enumeration Form
MX00_BEDROOMS
MX00A_ROOMS
MX00A_WATER
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Family Interrelationship Variables
(Simple household)
Spouses
Pernum Relate Age Sex Marst Chborn
1 head 46 male married n/a
2 spouse 44 female married 3
3 aunt 77 female widow 7
4 child 15 female single 0
5 child 13 female single n/a
6 child 11 male single n/a
Location
 
 
 
 
 
 
2
1
0
0
0
0
Mothers
Fathers
Pernum Relate Age Sex Marst Chborn
1 head 46 male married n/a
2 spouse 44 female married 3
3 aunt 77 female widow 7
4 child 15 female single 0
5 child 13 female single n/a
6 child 11 male single n/a
Location
 
 
 
 
 
 
Location
 
 
 
 
 
 
0
0
0
0
0
0
2
1
1
2
1
2
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Family Interrelationship Pointers
13 censuses include data on location of parent or
spouse
Agree Disagree
Spouse 99.5 0.5
Mother 98.7 1.3
Father 99.4 0.6
Mother 97.5 2.5
Father 98.7 1.3
Under age 18
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IPUMS-International Stages
1) Sample processing
2) Integration
3) Dissemination
Dynamic metadata system a) Documentation
b) Data extraction
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Variables Page
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Variables Page
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Variables Page
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Sample Filtering
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Variables Page
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Enumeration Text Marital Status
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Enumeration Text Marital Status
(Cambodia)
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Data Extract System
Select Samples
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Data Extract System Select Variables
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Data Extract Download
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END
Thank you
Matt SobekMinnesota Population
Centersobek_at_pop.umn.edu