ACAD Training and Quality Assurance Core ABSTRACT The ACAD Training and Quality Assurance (TQA) core is tasked with building precise and uniform procedures in the collection of data and its management. The TQA core emphasizes 1) Quality Assurance (QA), which concentrates on developing and enforcing measures to prevent errors in data collection and management and 2) Quality Control (QC), which focuses on building infrastructure to effectively identify and correct errors. To accomplish its aims, the TQA core will establish QA procedures to educate and train ACAD team members and develop multiple QC measures such as double scoring and identification of outliers to identify and rectify errors. By reliably collecting and managing data in a standardized manner, ACAD will produce high-quality harmonizable data that can generate replicable scientific findings. In addition, the TQA core intends to investigate population-specific error susceptibilities of ACAD measures using quantitative and qualitative analyses. Finally, by making ACAD training materials for administration of cognitive measures available to qualified clinicians and research scientists, the ACAD TQA core will increase participation of diverse populations in research and reduce healthcare disparities.