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"Data and documentation for the first of three waves of the UCNets - UC
Berkeley Social Networks Study - are now available for download on NACDA
(National Archive of Computerized Data on Aging), part of ICPSR.  The URL
These ego-centric data consist of a primary sample of egos (n=1,159) and
alters (n~12,000).  UCNets  is a five-year panel study funded by the National
Institute on Aging
R01 AG041955-01.  People in two age groups (cohorts) – 21-30 year-olds and
50-70 year-olds — are interviewed three times, beginning  in Winter-Spring
2015, allowing us to test how changes in social connections happen and
affect health.  We draw participants from 6 Bay Area counties:  San
Francisco, Marin, Alameda, Contra Costa, San Mateo and Santa Clara. During
2015-2016 we interviewed most respondents in person, while the other
participants filled out a self-administered web survey.  In the second and
third waves, some of the participants who were interviewed in person will
do the survey online.  Two waves have been completed: the third wave is
currently in the field (as of March 2018).

Please note that the we are constantly cleaning the data, and the cleanest
data are not necessarily available through NACDA."

Claude S. Fischer
Professor of the Graduate School, Sociology
University of California, Berkeley

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