Rounding guidelines for post-censal surveys and the Longitudinal Survey of Immigrants to Canada

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Résumé (anglais)

Before any analytical results are released from the Research Data Centres (RDCs), RDC analysts must conduct disclosure risk analysis (or vetting). RDC analysts apply Statistics Canada’s disclosure control guidelines, when reviewing all analytical output, as a means of ensuring the protection of survey respondents’ confidentiality. For some data sets, such as the Aboriginal People’s Survey (APS), Ethnic Diversity Survey (EDS), the Participation, Activity and Limitation Survey (PALS) and the Longitudinal Survey of Immigrants to Canada (LSIC), Statistics Canada has developed an additional set of guidelines that involve rounding analytical results, in order to ensure further confidentiality protection. This article will discuss the rationale for the additional rounding procedures used for these data sets, and describe the specifics of the rounding guidelines. More importantly, this paper will suggest several approaches to assist researchers in following these protocols more effectively and efficiently.