The MiCDA Data Enclave is funded by the Michigan Center on the Demography of Aging (NIA P30 AG12846), the Health and Retirement Study (NIA U01AG009740), and the Michigan Retirement Research Center (SSA 10 P-98358-5). The Survey Research Center and the Population Studies Center of the Institute for Social Research also provide support for the operation of this facility.
The Michigan Center on the Demography of Aging (MiCDA) Data Enclave is designed to assist:
The term "restricted data" refers to data products that cannot be distributed to the general public because of respondent confidentiality concerns, or because third-party licensing or use agreements prohibit redistribution. The Data Enclave maintains respondent confidentiality by providing a controlled, secure environment in which eligible researchers can perform analyses using restricted data resources. An example of a restricted data resource would be the administrative data files prepared for distribution by the Health and Retirement Study, which are normally available only to recipients of United States Federal grants. Another restricted data source newly available from the German Social Security system provides information on both individuals and households and employers. These data include detailed information on employment, unemployment benefit receipts, participation in labor market programs and registered job search, and a large number of socio-economic characteristics.
The MiCDA Data Enclave is housed in a secure facility maintained by the Institute for Social Research. The Data Enclave can serve a maximum of six researchers at any given time. Each Data Enclave user has access to the statistical analysis software, specialized application software, compilers, and utilities necessary to manipulate and analyze restricted data. The Data Enclave workstations communicate with a dedicated server on a network that has no physical connection to any other ISR network or to the Internet. A unique password-protected profile is created for each Enclave user which allows the user to access the restricted data files specified in the User Agreement. The Data Enclave is open during normal weekday working hours, except for University holidays.
Eligible Users. Faculty members of accredited institutions of higher education, students who are currently enrolled in an accredited graduate or undergraduate program and other researchers who wish to use MiCDA restricted data files but are unable to fulfill the contractual conditions for off-site access.
Cost Recovery. Academic (faculty members of accredited institutions of higher education) or Government (Federal/State/Local) $200/day; Student (currently enrolled in an accredited graduate or undergraduate program) $50/day; Other: $500/day. Special funding mechanisms are in place for University of Michigan students and faculty; contact Data Enclave staff for further details.
User Dataset Preparation. Enclave staff ensure that all restricted and public use datasets listed in the user's approved Research Plan are available on the Data Enclave Workstation. Enclave users are responsible for developing and implementing all data management procedures necessary to produce datasets to be used for analysis. Researchers may provide outside data for use in the Data Enclave, subject to prior approval during the application process. See User-supplied Data for details.
User Assistance. Enclave staff provide assistance with dataset installation, software installation, operating system problems, statistical package operation, backups and user interface issues. Staff members do not provide assistance in carrying out statistical analysis.
Remote Job Submission (Revised Policy). Our expectation is that Enclave users will complete their analysis work during the course of their visit to Ann Arbor. We recognize that special circumstances may arise under which researchers will need to submit analysis runs for remote processing.
Remote job submissions will be reviewed on a case-by-case basis, and will be processed as long as the following conditions are met:
Pre-Export Disclosure Review. Users are allowed to remove results of statistical analysis from the Data Enclave only after Enclave Staff have conducted a disclosure limitation review in order to protect respondent confidentiality. The review process will include examination of both printed and on-line output. Machine readable data files containing analysis results can only be exported by Enclave Staff. See Rules for Pre-Export Disclosure Review for more information on the review process.
Additional Background Information: Potential Enclave visitors as well as researchers interested in establishing a similar facility may wish to read Access to Restricted Data in a Controlled Environment: The Michigan Center on the Demography of Aging Data Enclave, a white paper presented at JSM 2001 that describes the establishment and operation of the MiCDA Data Enclave. Another paper that might be of interest is Research Use of Restricted Data: The Hrs Experience, presented at JSM 2004.
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