UCLA Social Science Data Archive (part of the UCLA Library Data Science Center)SSDA collection consists of surveys, enumerations, public opinion polls, and de-identified administrative records. Topics of studies include political attitudes and behavior; social and economic attitudes and behaviors; studies of health status and health outcomes; families, children, and women; international surveys of occupational and social mobility; the Los Angeles County Social Surveys; California Polls; and, census data for the United States and other countries.