How do internalizing and externalizing disorders differ in youth?

• A. Internalizing disorders involve mood and anxiety symptoms.
• B. Externalizing disorders involve mood and anxiety symptoms.
• C. Internalizing disorders involve mood and anxiety symptoms; externalizing involve behavior problems.
• D. They are completely unrelated in terms of referral patterns.

Answer: (D)

Understanding the difference is about where the symptoms show up. Internalizing disorders in youth involve inward distress—mood and anxiety symptoms such as persistent sadness, withdrawal, excessive worry, and somatic complaints. Externalizing disorders involve outward, observable problems—behavior issues like aggression, rule-breaking, defiance, and hyperactivity. Because of this, the best way to describe the distinction is that internalizing involve mood and anxiety symptoms, while externalizing involve behavior problems. It’s also useful to remember that kids can show symptoms from both sides and that referral patterns aren’t strictly separate—some children are brought in for disruptive behavior, others for noticeable anxiety or mood concerns, and sometimes both emerge together.