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Online Data Analysis

Users can perform online data analysis on our Web site without downloading files. ICPSR currently offers online analysis components for selected data collections using two data analysis systems: Survey Documentation Analysis (SDA), and Nesstar.

• View SDA studies
• View Nesstar studies
• View online analysis studies related to:
  • Aging
  • Child Care & Early Education
  • Criminal Justice
  • Education
  • Substance Abuse & Mental Health

Please note that although most online analysis components are freely available to the general public, a few online analysis components are available only to ICPSR Direct users.

Online data analysis allows users to:

• Search for variables of interest in a dataset
• Review frequencies or summary statistics of key variables to determine what further analyses are appropriate
• Review frequencies or summary statistics for missing data
• Produce simple summary statistics for reports
• Create statistical tables from raw data
• Create a subset of cases or variables from a large collection to save time and storage space when downloading to a personal computer
• Browse the electronic codebook

Data Available Through SDA

ICPSR offers a selection of data collections for online data analysis using the Survey Documentation and Analysis (SDA) system developed and maintained by the Computer-Assisted Survey Methods Program at the University of California, Berkeley. For more information, visit the SDA Web site.

ICPSR currently uses SDA Version 3.1 for all studies formatted for this analysis package. For more information about SDA capabilities, view the Online analysis using SDA page.

Data Available for Use with Nesstar

Nesstar permits online data analysis and visualization as well as subsetting and export to a variety of formats. Data collections available through Nesstar contain step-by-step instructions for each screen within each of the Nesstar data collections. The Nesstar tool was developed through a partnership between the UK Data Archive and the Norwegian Social Science Data Service. For more information visit the Nesstar Web site.

If you have any questions or suggestions about Nesstar, please contact us at netmail@icpsr.umich.edu.