DDI-Codebook v2.5
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XML Schema namespace:
http://www.ddialliance.org/Specification/DDI-Codebook/2.5/XMLSchema/
Description
DDI-Codebook is a more light-weight version of the standard, intended primarily to document simple survey data. Originally DTD-based, DDI-C is also available as an XML Schema.
Applications
Documentation of a simple study. Basic descriptive content for variables, files, source material, and study level information. Supports discovery, preservation, and the informed use of data.