In differentiating ADHD from anxiety or depression in an assessment, which consideration is most informative?

• A. Consider symptom patterns across contexts, duration, impairment level, informant reports, and rule out mood/anxiety as root cause; consider comorbidity.
• B. A single test result determining ADHD.
• C. Focusing exclusively on parent report.
• D. ADHD cannot be comorbid with mood disorders.

Answer: (A)

The most informative approach is to assess ADHD symptoms as a pattern that spans multiple contexts, persists over time, and causes clear impairment, while actively ruling out mood or anxiety as the root cause and considering that these conditions can co-occur. ADHD is characterized by inattention and/or hyperactivity-impulsivity that are present in more than one setting (for example, home and school) and have lasted for a substantial period (typically several months in children), leading to noticeable impairment in functioning. Because mood and anxiety can produce overlapping symptoms such as restlessness or trouble concentrating, it’s essential to determine whether the observed behaviors occur across different environments and during times when mood/anxiety symptoms are not driving them. Gathering information from multiple informants (parents, teachers, and, when appropriate, the youth) provides a fuller picture of how symptoms manifest across settings, not just in one context. It’s also important to consider comorbidity, since ADHD often co-occurs with mood or anxiety disorders, which can influence presentation and treatment.

In contrast, relying on a single test result or focusing on one informant can miss the broader, cross-situational pattern and the functional impact. And stating that ADHD cannot be comorbid with mood disorders is inaccurate, as comorbidity is common and must be evaluated.