NED for June 1 in DC Seligson v5apptx (PDF)

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Democratic Values
Through the Lens of LAPOP’s
AmericasBarometer, 2004-2014

Mitchell A. Seligson
Founder & Senior Advisor of LAPOP and
Centennial Professor of Political Science
Vanderbilt University

Based on the 2014 report….

The
AmericasBarometer
2004-2014: ~232,000 interviews

• The only household survey that
includes North, Central and South
America, and key countries in the
Caribbean
• Minimum of 1,500 interviews per
country
• Nationally representative, including
rural and urban areas
2014:
28 countries,
~50,000 interviews
(min. 1,500/country, with a
~margin of error of +/- 2.5%)

• Face-to-face interviews, conducted
in at least 8 languages
• Multiple pre-tests conducted over the
course of a year

Sample
Sampling Error
Size
Mexico/Central America

Country

2014
Sample Sizes
and Confidence
Intervals
(national level)

Mexico
Guatemala
El Salvador
Honduras
Nicaragua
Costa Rica
Panama

Bahamas
Barbados
Belize
Dominican Republic
Guyana
Haiti
Jamaica
Suriname
Trinidad & Tobago

LASSO: A new technology for
sample design

Total

±2.5%
±2.5%
±2.5%
±2.4%
±2.4%
±2.5%
±2.4%

1,512
1,512
1,500
3,068
1,515
1,571
1,512
1,500
1,500
1,512

±2.5%
±2.5%
±2.5%
±1.8%
±2.5%
±2.5%
±2.5%
±2.5%
±2.5%
±2.5%

3,429

±1.8%
In progress
±2.5%

Andean/Southern Cone

Colombia
Ecuador
Peru
Bolivia
Paraguay
Chile
Uruguay
Brazil
Venezuela
Argentina

Canada
United States

1,578
1,506
1,512
1,561
1,547
1,541
1,508

Caribbean
1,534
1,520
1,558
1,512
1,506
4,000
4,207

±2.5%
±2.5%
±2.3%
±2.5%
±1.6%
±1.6%

United States and Canada
1,517
1,500

49,738

±2.5%
±2.5%

*Confidence intervals based on unweighted sample sizes. For cross-national
analysis purposes, LAPOP weights each sample to 1,500.

The only regional survey using
handheld computers, with software
developed by academic partners in
Costa Rica and Bolivia:
•
•
•
•

Reduces data entry errors
Allows for multiple languages
Is easily customized
Permits embedded experiments

Pretesting in Jamaica

LAPOP Supporters in
Recent Years
The

The LAPOP Consortium: Covering the Americas
A network of prestigious universities and research
centers in the Americas

World-Wide Release of 2014 Data: December 1, 2014
Report
Release:
December 3,
2014

World-wide free access made possible by
support from the Tinker Foundation

www.LapopSurveys.org