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.
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.