Statistics Canada Statistique Canada Protecting Confidentiality in Canadian Research Data Centres Cynthia Cook Senior Research Data Centre Analyst, Statistics.

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Presentation transcript:

Statistics Canada Statistique Canada Protecting Confidentiality in Canadian Research Data Centres Cynthia Cook Senior Research Data Centre Analyst, Statistics Canada

Statistique Canada mai 2005 / 2 1.Think about multiple, complimentary modes of data access. 2.Choose between perturbing data or perturbing results. 3.Institutional costs from breeches of disclosure can influence data access. 4.Researcher Engagement can be your best line of defense against disclosure.

Statistics Canada Statistique Canada mai 2005 / 3 Greater Risk of Disclosure Public Access Restricted Access Perturbed Data Unperturbed Data Loss of Access & Utility Research Data Centre Program Data Liberation Initiative

Statistics Canada Statistique Canada mai 2005 / 4 Research Data Centres Secure computing lab Statistics Canada household surveys Unperturbed, full data files (without personal identifiers) Mostly longitudinal data Only analytical output leaves the centre after vetting for disclosure Conditional access to foreign researchers A contractual obligation to produce a product Rely on researchers to determine risk of disclosure Data Liberation Initiative Data Library Statistics Canada household surveys Perturbed, partially suppressed data files (without personal identifiers) Mostly cross-sectional data No restrictions on the release of analytical output No access to foreign researchers No contractual obligation to produce a product Rely on data to determine the risk of disclosure

Statistics Canada Statistique Canada mai 2005 / 5 The output from modeling data poses less of a risk to disclosure than the data itself. Some researchers want the output from modeling data. Invest in controlling the results, rather than controlling the data to satisfy data user needs. Eg. Gini Coefficients. Research Data Centre Program

Statistics Canada Statistique Canada mai 2005 / 6 Legally Physically Electronically Analytically → Disclosure Risk Management Protect Response Rates Of Voluntary Household Surveys

Statistics Canada Statistique Canada mai 2005 / 7 The Researcher Experience of the RDC Analyst Hard and fast rules Intuitive guidelines Statistics Canada Methodologists

Statistics Canada Statistique Canada mai 2005 / 8 Engaging researchers Keeping the volume down Keeping disclosure as a priority given time constraints and research goals Knowing when to get help Solution: Open lines of communication

Statistics Canada Statistique Canada mai 2005 / 9 Research Data Centre Program: All Data Access Mechanisms to Statistics Canada Data: