To be diagnosed with childhood-onset conduct disorder, which of the following must be true?
1. The individual must exhibit a pattern of behavior that violates the basic rights of others and societal norms.
2. The individual must display persistent aggression, theft, deceitfulness, or other behavioral issues.
3. The onset of symptoms must occur before the age of 16.
4. The behavior must cause significant impairment in social, academic, or occupational functioning.
5. The behavior cannot be better explained by another mental health disorder, such as ADHD or oppositional defiant disorder.