The goal of the current project is to combine two evidence- based treatments for school-aged children with ADHD: Central Executive Training (CET) and Behavioral Parent Training (BPT). CET is a computerized training intervention that improves ADHD symptoms and academic functioning by improving children's working memory abilities. BPT is a therapeutic intervention that improves family functioning and child oppositional-defiant (ODD) symptoms by changing parenting behaviors. Their combined use is expected to provide complementary and additive benefits, particularly if CET is delivered before BPT.

Inclusion:

1. Children ages 8-12 with principal ADHD diagnoses (via K-SADS); and
2. parent AND teacher ratings in clinical/borderline range based on age and sex on ADHD Rating Scale (ADHD-5) or Behavior Assessment Scale for Children (BASC-3) Attention Problems/Hyperactivity subscales (i.e., 90th percentile or higher based on both informants).

All DSM-5 ADHD presentations will be eligible.

Exclusion:

1. gross neurological, sensory, or motor impairment;
2. history of seizure disorder, psychosis, bipolar, or severe dysregulation disorders that may interfere with participation (e.g., disruptive mood dysregulation, intermittent explosive, reactive attachment, substance use);
3. intellectual disability or Wechsler Intelligence Scale for Children (WISC-V) short-form standard score <70;
4. conditions requiring acute intervention, e.g., active suicidality; and
5. non-English speaking child or parent.