ABCD Study Data Documentation

ABCD Study 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, documentation for released instruments and variables, and tools for exploring and analyzing the data.

Study

Overview

Overview of the ABCD Study® and its goals.

Design

Study design, cohort structure, and longitudinal follow-up.

Open Science

ABCD's open science model, protocols, and data sharing policies.

Data Use

Data Access

How to request access to ABCD data through the NBDC Data Hub.

Data Download

Download ABCD data from the NBDC Data Hub.

Responsible Data Use

How to use the data responsibly and ethically.

Acknowledgement

How to acknowledge and cite the ABCD Study in your work.

Documentation

Curation & Structure

Data organization, curation standards, and release formats.

Non-Imaging Data

Surveys, biospecimens, neurocognitive tasks, and wearable sensors.

Imaging Data

MRI data types, derived measures, and imaging protocols.

Substudy Data

Information about ABCD substudies (e.g., Social Development; COVID-19).

Release Notes

Data quality notes and known issues by release.

Visual Release Resource

Printable graphic detailing curation standards, naming conventions, and sample details.

Tools

DEAP

DEAP Exploration and Analysis Portal for interactive data exploration.

NBDC Data Access Platform

Download and manage ABCD data through the NBDC platform.

R Packages

R packages for accessing, processing, and analyzing ABCD data.

Help

FAQ

Frequently asked questions about the ABCD data and documentation.

Report Issues

Report problems or known issues with the data or documentation.

Change Log

Track changes and updates across documentation versions.

Citation

How to cite the ABCD Study and this documentation website.