Core Trust Seal of Approval

Archiving your public opinion data at the Roper Center ensures that your data will be professionally curated, increases the impact and visibility of your work, and guarantees that your data will be easily accessible to users now and in the future. Become a data provider today.

Deposit Data

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Professional Curation

Professionals experienced in survey data processing add value to archived data by enhancing them with meaningful information to make them complete, usable, and independently understandable for future researchers.

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Accessibility and Exposure

Sharing data via the Roper Center ensures widespread visibility of public opinion data and increases the productivity of public opinion research. The Roper Center promotes new acquisitions in newsletters and website announcements, features data providers on individualized data provider web pages, and makes data available via the state-of-the-art access tools iPOLL, RoperExplorer, and RoperExpress.

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Backup and Preservation

The Roper Center is a respected data repository with a wealth of expertise in long-term preservation planning and processing. Our core mission is to ensure that public opinion data remain accessible to depositors and secondary users in perpetuity.

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Data Deposit Materials

Data deposits should contain the following:

  • Survey data file(s) in SPSS, Stata, SAS, and/or ASCII formats *
  • Methodological description or report **
  • Questionnaire(s)
  • Codebook(s)
  • Interviewer instructions
  • Weighting information
  • Completed Data Deposit Form, granting the Roper Center permission to archive and redistribute survey data

Data deposits could also contain survey reports, press releases, or other publications whose findings are based on the deposited data. If available, a list of resulting academic citations would complete the documentation submission.

To deposit your data, email all data deposit materials, including a completed Data Deposit Form,
to For large file transfers, please contact us with a request for SFTP access.

View a sample agreement for ongoing data providers.

* If your data are in a format outside our preferred list, please contact us to discuss options for archiving.
** The Roper Center is committed to promoting transparency in methodological disclosure and supports the American Association of Public Opinion Research’s Transparency Initiative.