DDI Lifecycle

The TREC Measurement System (TMS) study is a longitudinal study that explores the strength of linkages between work environments, best practice use and resident outcomes using staff survey data and RAI-MDS 2.0 data. The study will take place in 90 nursing homes across British Columbia, Alberta and Manitoba. Recruitment of sites will ensure representation across these locations, and that facilities of different sizes and owner-operator models (public, voluntary and private) are included.

The Consortium of European Social Science Data Archives (CESSDA) offers a data catalogue providing access to research data from archives across Europe. The catalogue includes nearly 30,000 studies (~22,000 with english descriptions) distributed by members of the CESSDA European Research Infrastructure Consortium (ERIC).

MQDS, developed by Survey Research Operations at the Institute for Social Research, University of Michigan, documents Blaise instruments and produces survey documentation on the Web. MQDS can export documentation in DDI 3 format.

This online panel survey, administered by CentERdata, a research institute located in Tilburg in the Netherlands, documents its data using DDI 3 through a backend called Questasy.