| ADHD | Attention-Deficit/Hyperactivity Disorder |
| ADHD-IA | Attention-Deficit/Hyperactivity Disorder, Inattentive Subtype |
| ADHD-CT | Attention-Deficit/Hyperactivity Disorder, Combined Subtype |
| ATX | Atomoxetine |
| BEI | Bryant Empathy Index |
| DA | Dopamine |
| DSM | Diagnostic and Statistical Manual of Mental Disorders |
| K-SADS-5-PL | Kiddie Schedule for Affective Disorders and Schizophrenia—Present and Lifetime Version |
| MPH | Methylphenidate |
| NE | Norepinephrine |
| PFC | Prefrontal cortex |
| RMET | Reading the Mind in the Eyes Test—Revised Child Version |
| SNAP-IV | The Swanson, Nolan, and Pelham Questionnaire |
| SRSS | Social Skills Rating Scale |
| ToM | Theory of Mind |