The Wisconsin Longitudinal Study

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The Wisconsin Longitudinal Study is part of the Center for Demography of Health and Aging at the University of Wisconsin, Madison.

Over the years, the Wisconsin Longitudinal Study has been supported by several government agencies and by private foundations, as well as by the University of Wisconsin.

Since the early 1990s, the WLS has been supported mainly by the National Institute on Aging, which is part of the National Institutes of Health and also by the Vilas Estate Trust, the National Science Foundation and the Spencer Foundation.


Welcome to the website of the Wisconsin Longitudinal Study, one of the most extensive and successful studies ever conducted in the social sciences. Click on "News and Findings" for interesting research based on WLS data.

New round of interviews to begin in July 2019.

WLS is very pleased to announce that a new round of interviews with Graduates and their selected Sibling will begin in July 2019 and continue until approximately 2024. As in past years, the University of Wisconsin Survey Center (UWSC) will be contacting participants for interviews. Most interviews will be by phone, while some participants will be invited to do a follow-up in-person interview. If you have any questions about this new round of interviews, please contact UWSC toll-free at 1-866-891-2492 or by email at study@uwsc.wisc.edu

WLS receives grant to analyze donated DNA and has been accepted into the database of Genotypes and Phenotypes!

When we began collecting your saliva samples to extract DNA the science that combines genetic data with interview data was in its infancy. WLS correctly anticipated the value of this combination.  Today we are proud to announce an award from the National Institute of Health to analyze the saliva and include the results in the database of Genotypes and Phenotypes otherwise known as dbGaP.  Because of this award, your saliva donation became much more valuable for scientists looking to link genetic markers and health outcomes. Our first pass at analyzing your saliva allowed us to study about 80 genetic markers. Now with the additional funding, we can study hundreds of thousands of genetic markers.  Additionally you donated enough saliva that we still have some left for future analyses.   

For important information on this project please read this.

If you are looking to download reports for participants please click on the links below.

WLS Participant Report April 2021 [PDF]

Participant Report May 2014 [PDF]

Brothers and Sisters: Findings from the Wisconsin Longitudinal Study  (January 2008)

The Class of 1957 at Age 65: A First Look (September 2006)

Wisconsin's Class of 1957 and their Families in the 1990s

The Class of 1957 - Eighteen Years after High School Graduation

If you have trouble viewing these reports you may need to first download a copy of Adobe Reader.


Enjoy the site, and thank you again for your time and participation.

- The staff and researchers at the Wisconsin Longitudinal Study.


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