The data objects in the RDC at ZPID are described in terms of the following information:
Includes the following metadata: Creator/author, contributor, title, year of publication, funder, citation
Short summary in English language
Precise description of all variables within a given dataset, including the following Information:
name, label, measurement instrument (not always included), scale level, value labels, missing values
Includes information on research questions/hypotheses, research design, measurement instruments/ apparatus, data collection method as well as a sample description, containing information on the population, the sampling method, the subject recruitment and the sample size.
Includes a listing of literature directly related to the data set, test procedures used, and further reading.
Provides references of data preparation and analysis code as well as program code for a specific research data object
Provides references of study materials for a specific research data object