• Study
  • Data Usage
    • Access & download data
    • Responsible use
    • Acknowledgment
  • Documentation
    • Curation & structure
    • Non-imaging
    • Imaging
    • Substudies
    • Release notes
  • Tools
    • Data tools
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ABCD Data Documentation

Welcome to the data documentation website of the Adolescent Brain Cognitive Development℠ (ABCD) Study!
Here you will find detailed information about the ABCD data resource, including

  • How to access and use the data responsibly.
  • Information about released instruments and variables.
  • Release-specific notes and known issues.
  • Tools for exploring, downloading, and analyzing the data.
  • General help and support resources.
Study Overview of the ABCD Study® and its goals.
Data usage How to request access, use the data responsibly, and cite the study.
Documentation Curated information about data structure and contents.
    Curation Data organization, curation standards, and release formats.
    Imaging MRI data types, derived measures, and imaging protocols.
    Non-imaging Surveys, biospecimens, neurocognitive tasks, and wearable sensors.
    Sub-studies Information about ABCD’s substudies (e.g., Social Development; COVID-19; etc.).
    Release notes Data quality notes and known issues by release.
Tools Tools and platforms for data exploration and analysis: DEAP, Lasso, R packages.

Additional Resources

NBDC Data Hub: For accessing ABCD data and other datasets released through the NBDC platform.
ABCD Website: Official study website proving an overview of the design, aims, and updates.
ABCD-ReproNim: This course was designed to provide a comprehensive background to the ABCD dataset while and interactive instruction to enable rigorous and reproducible data analyses.
Now I Know My ABCD: A community-run discussion forum for ABCD data users.

Note

The Now I Know My ABCD forum is managed by the research community and is not officially moderated by ABCD. For background on this initiative, see this article.

 

ABCD Study®, Teen Brains. Today’s Science. Brighter Future.® and the ABCD Study Logo are registered marks of the U.S. Department of Health & Human Services (HHS). Adolescent Brain Cognitive Development℠ Study is a service mark of the U.S. Department of Health & Human Services (HHS).