jiversen / analysis-nda

Collection of scripts to analyze ABCD release data

A collection of analysis scripts for NDA-18

The NDA-18 data release contains data for the full baseline 11,875 participants of the Adolescent Brain, Cognitive Development study. This repository contains a collection of scripts developed at ABCD's Data Analysis and Informatics Center (DAIC, UC San Diego) to process data that is part of this release of ABCD data.

The data for this release can be downloaded from NDA using a pre-generated package "ABCD-RELEASE-2" using the Download Manager tool provided by NDA. Place the data into the data folder of this project.

Create a single data spreadsheet

• Merge individual spreadsheets (using R)

Recode values

• Recode some core demographic variables (using R)

Recover variable types

• Recover categorical variables (using R)

Create a single data dictionary

• Merge individual data dictionaries (using R)

Other

• Impute missing core demographic variables (using R)
• Quality control metrices for image data (using R)

Let us know if you have a script that you think should be part of this project.