Background Data harmonization Data output Web: Variable documentation system Web: Data extract...

Background

Data harmonization

Data output

Web: Variable documentation system

Web: Data extract system

IPUMS Dissemination System

Variable Harmonization

MARST Marital Status

code label CN82A403 CO73A411 KN89A413 MX70A402 US90A425

100 SINGLE/NEVER MARRIED 1=never married 4=single 1=single 9=single 6=never married

200 MARRIED/IN UNION

210 Married (not specified) 2=married 2=married 3=monogamous 1=married

211 Civil 3=only civil

212 Religious 4=only religious

213 Civil and religious 2=civil and religious

214 Polygamous 3=polygamous

220 Consensual union 1=free union 5=free union

300 SEPARATED/DIVORCED 3=sep. or divorced

310 Separated 6=separated 8=separated 3=separated

321 Legally separated

322 De facto separated

330 Divorced 4=divorced 5=divorced 7=divorced 4=divorced

400 WIDOWED 3=widowed 5=widowed 4=widowed 6=widowed 5=widowed

999 UNKNOWN/MISSING 0=missing 6=unknown B=blank 1=unknown

China1982

Colombia1973

Kenya1989

Mexico1970

U.S.A.1990

(Marital status)

IPUMS MicrodataHome

OwnershipRelationto Head

Age MaritalStatus

Occupation

Data extract

3. Submit extract

19212023311

19212023311

19211212211

19211214400

17051612211

17051212211

17051223310

17051214400

03241214400

03242014400

03242023310

03242013310

Pooled Data Extractssample water sex education

Argentina 20013.6 million

Chile 20021.5 million

Cuba 20021.1 million

Extract

Engine

Argentina 2001

Chile 2002

Cuba 2002

Water supply

Sex

Education

1. Select samples

2. Select variables

1 dataset

3 censuses

4 variables

6.2 million records

Harmonized codes

Q: How can we give researchers the information they need without overwhelming them?

Q: How can we best encourage comparative research?

A: Organize information by variable, not sample

A: Ability to filter out unnecessary information

A: Access to full detail when that is desired

Variable Documentation System

1. Exploring the Database

Variables Page

Variables Page

159 samples

Sample Filtering

Variables Page – Filtered

2. Variables – Codes

Variable Codes(Marital status)

Variable Codes(Marital status)

Variable Codes(Marital status)

3. Variable Descriptions

Variable Description(Marital status)

Comparability Discussion(Marital status)

4. Variables – Deep Documentation

Enumeration Text

Enumeration Text(Marital status, Cambodia)

Variable Description(Unharmonized source variables)

Unharmonized Variables(Source data for marital status)

Make it easy to get only the variables and samples that a user needs.

Pool the data across time and countries.

Provide tools to help users manage the size of the data.

Provide advanced features to empower researchers to do new kinds of research.

Data Extract System

Extract – Select Samples

Extract – Select Samples

Extract – Select Variables

1. Case selection

2. Customized sample size

3. Attached characteristics

4. Extract revisions

Advanced Extract Features

Case Selection

Customize Sample Sizes

Customize Sample Sizes

Customize Sample Sizes

Pernum Relationship Age Sex Marst Chborn

1 head 53 female separated 6

2 child 28 male single n/a

3 child 22 male single n/a

4 child 21 male single n/a

5 child 25 female married 2

6 child-in-law 28 male married n/a

7 grandchild 3 male single n/a

8 grandchild 1 male single n/a

9 non-relative 32 female separated 2

10 non-relative 10 male single n/a

11 non-relative 5 female single n/a

Location

Location

Location

0

0

0

0

0

6

5

0

0

0

0

0

0

1

1

1

1

0

5

5

0

9

9

0

0

0

6

6

0

0

0

0

0

Spouse’s Father’sMother’s

Constructed “Pointer” Variables

Attached Characteristics

Age of spouse

Employment status of father

Occupation of father

Attached Characteristics

Download or Revise Extract

END

http://international.ipums.org

Matt SobekMinnesota Population Center

sobek@umn.edu