DDA - Danish Data Archive

Your access point to quantitative research data in the Danish National Archives, providing information on ordering, depositing and using quantitative research data.

Find quantitative research data

DDA Search provides the largest collection of survey-based research data in Denmark to researchers and students.

Find research data

Register data for research

Digital public records (register data, etc.) contain information that may be of great value in a research context.

In the National Archives database, Daisy, you can find a variety of public records.

Read more about using digital public records at National Archives

Search in Daisy

Depositing research data

Do you wish to deposit data from your research project at the National Archives?

Fill out the notification form

Research Data Management

As a researcher, it is crucial to manage your research data in a safe and proper manner throughout the research process.

Read the National Archives guidance and recommendations for data documentation, data management plans and data management policies.

Analyze online

DDA Online makes it possible for you to use a large part of the research data at DDA for analysis online. You do not need access to analysis tools such as SPSS, SAS and STATA for working with data.

Use DDA Online

DDA Newsletter

The newsletter DDA Info gives you news and perspective on the use of research data and digital public records in social and health sciences.

Sign up for DDA Info

Methodology & Research Design

DDA’s Open Access journal Methodology & Research Design presents articles on methodology, data collection, analysis and presentation, and more.

The journal is based on survey research in the social sciences, but the intention is to be inclusive in terms of methods and scientific disciplines.

The articles in Methodology and Research Design are peer-reviewed.

Read Methodology & Research Design

DDA Health

DDA Health is dedicated to encouraging and facilitating the use of research data within health science.

Read more on DDA Health

International cooperation

DDA is part of a large international network of data archives.

Read more about DDA’s international cooperation

KOR - The Coordinating Body for Registerbased Research

The National Archives acts as secretariat for the Danish Coordinating Body for Registerbased Research (KOR), whose task it is to strengthen registerbased research in Denmark.

Visit KOR’s website