Statistics Canada Research Data Centre Program* Facilities across Canada housing detailed confidential microdata and documentation files from Statistics Canada Statistics Canada released data that would otherwise not be available into “secure” sites. 1 About statistics Canada data: • • • Canadian Community Health Survey (CCHS) Ethnic Diversity Survey (EDS) General Social Survey (GSS selected cycles) – – – – – – – – • • • • • • Access to and Use of Information Communication Technology Education, Work and Retirement Family Health Social Engagement Social Support and Aging Time Use Victimization Longitudinal Survey of Immigrants to Canada (LSIC) National Longitudinal Survey of Children and Youth (NLSCY) National Population Health Survey (NPHS) Survey of Labour and Income Dynamics (SLID) Workplace and Employee Survey (WES) Youth in Transition Survey and the Programme for International Student Assessments (YITS-PISA) 2 Two ways researchers can get access to Statistics Canada Survey data: Research Data Centre • Access restricted • Must work with data within centre • Results can only be released from centre after scrutiny • Must submit proposal, be “approved,” get security clearance, sign contract Data Liberation Initative • Actual data released to researchers with minimal restrictions • Data can be downloaded via library website 3 Two sources of StatCan data: Data liberation initiative: - At just about every university and many colleges across Canada Research Data Centres - full-time centres at larger Canadian universities (UBC, Alberta, Calgary, Toronto, Western, Waterloo, Montreal, etc.) - Part-time centres at other universities, including UVic, SFU, Queen’s, Saskatchewan - No centre at smaller institutions (e.g., Vancouver 4 Island University, UNBC) DLI Restrictions • No longitudinal data (in some cases, cross-sectional waves, not linked and with unique identifiers stripped, are available, but in other cases survey not available at all) • Many variables treated as “confidential” and deleted from dataset or coarsely categorized 5 Files available RDC DLI -Those listed on RDC site -Other files if arragements can be made - Those listed on DLI site – see UVic library web page under Data Acquisition Files not available Information on files not avail. Any linked longitudinal dataset Recent waves of NCLSY Some newly available surveys Cluster numbers Cluster numbers, Geographic detail Demographic detail Other 6 RDC DLI Who may access - Faculty with approved projects -Graduate students with approved projects (+faculty co-investigator) - Any member of UVic community with NetLink ID Where files may be worked on In Data Centre only May be downloaded to be used anywhere, with agreement not to redistributed Initial contact Doug Baer or Lee Kathleen Matthews, Data Grenon (StatCan Analyst Librarian, UVic located in Vancouver at UBC) 7 censored variables Full versions of datasets with censored variables + datasets not otherwise available can be worked on in a “Research Data 8 Centre” Full versions of datasets with censored variables + datasets not otherwise available can be worked on in a “Research Data Centre” As part of the application process, you will be asked to indicate why the DLI datasets are not sufficient. - Dataset not available at all via DLI (some longitudinal datasets) - Linked longitudinal file for the dataset not available via DLI - Variables needed for the research are either (a) not available or (b) too coarsely categorized [not so with originally collected data] to be usable for research project Examples: exact income, exact age, city size, community in which respondent lives (esp. for multi-level analysis), religion, church attendance (some surveys), 9 Statistics Canada Research Data Centre Program There are RDCs across Canada at most major universities with doctoral programs: • New Brunswick (branch at Moncton), Dalhousie • Toronto , York •Waterloo branch at Guelph ( WLU participates) •McMaster (Brock participates) •Western (branch at Windsor) •Queen’s (part-time site) •U of Ottawa (Carleton and UQ-Gatineau participate) •Manitoba •U of Saskatchewan (part-time site) • 2 Alberta sites: U of Alberta; Calgary (branch at Lethbridge) • Manitoba •Consortium (U de Montreal) with branches at UQAM, Sherbrooke, Laval •McGill •BC universities consortium BC consortium: UBC, SFU, UVic, Vancouver Island Univ., UNBC 10 The UVic branch works within the British Columbia Interuniversity Research Data Centre network • “main” site is at UBC; open 9-5 M-F • UVic site has more restrictive hours (arranged termby-term in consultation with researchers). – Currently 15.5 hours/week (sometimes a bit less in summer) – Exact hours worked out in consultation with users 11 Data used most frequently at RDCs survey of labor income dynamics (SLID) Victimization GSS cycle 3, 8, 13, 18 Participation and Activity Limitation Family history GSS cycle 5, 10, 15 and 20 homicide data-pilot national graduate survey / Follow-up Survey of 2000 Graduates Canadian Health survey 1.2 Canadian Health survey 2.2 Canadian Health survey .1 12 Major Statcan surveys: (ALL VERY WELL SUPPORTED AT RDCs) • Workplace and Employment Survey • Canadian Community Health Survey • Health Services Access Survey • General Social Survey Longitudinal: • National Population Health Survey • Survey of Labour & Income Dynamics • National Longitudinal Survey of Children and Youth • Longitudinal Survey of Immigrants to Canada • Youth in Transition Survey • Workplace & Employment Survey Census (presently 1991,1996,2001,2006) 13 & other data can be arranged • There is presently a project involving BC Administrative Health data (to be linked to Stats Can survey data) • For a very large list of StatCan Surveys, see the DLI website (UVic library) http://gateway.uvic.ca/data/default.html click on “DLI collection” future plans: see below 14 What is the process for gaining access? http://www.statcan.ca/english/rdc/application.htm 15 Application process works through SSHRC Graduate students must have faculty member as coinvestigator 16 Project proposal • Proposal evaluation by SSHRC peer review and Statistics Canada • Very few are turned down… though must establish that confidential data are required to complete project – Does project have scientific merit? is access to confidential microdata necessary? Does researcher have expertise to conduct research? – Takes 5-8 weeks • Proposals that are part of SSHRC or CIHR grants forgo the SSHRC peer review process – Approvals typically 3-4 weeks 17 Process: • • • • Submit proposal Proposal approved Security check on applicant oath, investigator becomes “deemed employee” of statistics canada • Orientation session at UVic • Issued access card for card reader 18 UVic facilities: 6 workstation lab with room for expansion to up to 10 workstations workstations now have widescreen monitors or dual screen configuration Server for data Most commonly used statistical software packages Some highly specialized software packages Hours are worked out to suit the needs of active researchers. Currently: 16 hrs/week (slightly reduced Feb 2011 due to staff transition) We try to be open at least 4 hours on 3 different days of the week. 19 Software Standard stats packages: SPSS (19), SAS (9.2) STATA (11) [Stata/SE on 2 machines) Open-source stats: R Multilevel models: HLM, LISREL, MPlus SEM models: LISREL, MPlus Specialized (Bayesian, MCMC etc.): WinBugs Other software can be obtained if demand exists. 20 Security process • No output or notes can be taken out of the room • Users have file drawers and access to printer inside the centre • Output listings and notes (if typed into a computer file) can be released after they are “vetted” by a Statistics Canada Analyst at the main BC site •Files are sent via high security network to Vancouver •Files that are approved for release are emailed back to researcher •Pass card works only during centre hours (swipe in, swipe out protocol) 21 Can I work at other RDCs too? Can I work with other researchers? What about other researchers at other universities? • Access is “network wide” • Files are stored on a “project” basis (researchers, RAs, etc. have own account but access to shared files) • UVic researchers are part of the BC consortium and could go to the UBC site if more intense periods of research are required (35 hrs/week vs. 15); project files can be sent to and from the branch via the security intranet 22 Preparation: • Check to see if dataset is one of standard RDC datasets: check the national RDC website (see handout) – Extensive data documentation provided for listed datasets – If what you are interested is not on the list, check with Doug Baer • Is a public use file available? Check with Kathleen Matthews kmatthew@uvic.ca or on library web site. • Verify that variables needed for research are not on public use file. If possible, use public use file to explore data, etc. • If further dataset documentation required, ask Doug Baer • Go to SSHRC web page to put together application. Don’t hesitate to consult Doug Baer for help. Be prepared to specify variables to be used. Where a public use version of the dataset is available, be prepared to make clear why RDC access is needed (e.g., “a needed variable is suppressed on the public use file”). 23 Statistics Training • Summer Institutes: – SPIDA (York University) – ICPSR (U Michigan) – University of Western Ontario – Population Health BC • Likely workshop on Structural Equation Models June 2011 – Seminar at the Congress for the Humanities & Social Sciences (none this year) • Special workshops and seminars (Baer): – Possible: Statistics Canada bootstrap weights24 Contact information: More numbers on handout Doug Baer, Academic Director (Sociology) baer@uvic.ca (721) – 7581 Cornett, A365 RDC (853) 3196 (rdc@uvic.ca) RDC Analyst at UBC: Geoff 604-822-0263 (bcirdc@interchange.ubc.ca) Centre web site (shows hours): web.uvic.ca/rdc 25 Future: • Plans are in development to add the following to RDC dataset collection: – – – – Cancer Registry (pilot project in progress at BCIRDC) HRSDC administrative data CPP-disability data Homicide data (Cdn. Centre for Justice Statistics) [under review: pilots only] – Census – Business data: (selected datasets from Small Business & Special Surveys Division) 26