[Excerpt] About the study: The Adolescent Brain Cognitive Development (ABCD) cohort was analyzed, including large sample size, a diverse range of psychopathology measures, and an extensive cognitive task battery. The Parent-Child Behavioral Checklist (CBL) was used to extract dimensional mental health ratings. This checklist includes specific DSM-oriented symptoms and sum scores for attention deficit hyperactivity disorder (ADHD), depression, anxiety, and other dimensions. The measures were rated by parents based on their frequency and accuracy in testing their children.