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Sociologists and economists have long analyzed data sets collected by other researchers for different purposes. Since the mid-1960s, longitudinal surveys specifically designed to be publicly available to the research community have been carried out. Some of the recent ones contain much fuller measurements of children's development than do older surveys. These recents surveys present excellent opportunities for interdisciplinary collaboration involving developmental psychologists. The benefits of collaborative research are discussed in this article
Andrew J. Cherlin (Fri,) studied this question.