IMPORTANT NOTES ABOUT THE DATA SETS:

Users of the LAPOP data sets should carefully read the corresponding reports and/or articles for details of the sample designs of these surveys. Each data set has a brief explanation included within it, that can be found by opening the file in any version of SPSS 13 or higher, and going to "utilities," and then to "file comments." These comments will help the user understand the nature of the sample weights, if any, and other relevant issues.

The AmericasBarometer weighting scheme applies to each year of the AmericasBarometer data. Users of the LAPOP data sets should carefully read the corresponding reports and/or articles for details of the sample designs of these surveys. Some of the samples are weighted, others are not. To obtain correct results, for weighted data sets, the appropriate weight variable, normally called “WT”, must be applied in both SPSS or STATA. To see technical information including sample design information, please go here.

The use of these data files is subject to U.S. Federal regulatory mandates pertaining to research involving the protection of human subjects. Users should be certified to work with de-identified data and should fully comply with their institutions' human subjects requirements.

All those who use the data must agree to adhere to these human subjects protection rules.

De-identified survey data files are available in SPSS and STATA formats.

Tabulations of the data bases:

Tabulations of AmericasBarometer data sets can be found at: Online Data Analysis

About data sets prior to 2004*

You or your institution are welcome to become a data repository for any data sets prior to 2004 (these are not available with the AmericasBarometer annual subscription). As a repository, your ownership is permanent, except that you may not distribute to third parties (who need to obtain their own access). The cost per country/year is $250 for the data set in SPSS and STATA formats plus the questionnaire and technical information as .pdf files, or $300 if you also want ASCII files. You can become a repository for any of the data sets, including the AmericasBarometer series, although access to data sets prior to 2004 is only available through the data repository alternative. Please see: Become a Repository

We ask that all users of the data cite it as follows:

Source: The AmericasBarometer by the Latin American Public Opinion Project (LAPOP), www.LapopSurveys.org.

We also ask that all users include the following acknowledgement in their research and publications:
"We thank the Latin American Public Opinion Project (LAPOP) and its major supporters (the United States Agency for International Development, the United Nations Development Program, the Inter-American Development Bank, and Vanderbilt University) for making the data available."