New study found that individuals who were inattentive at age 6 had lower earnings in their 30s after taking into consideration their IQ and family adversity. For males only, individuals who were physically aggressive or oppositional (e.g., who refused to share materials or blamed others) had lower annual earnings in their 30s. And males who were prosocial (e.g., who shared or helped) had higher later earnings.
Source: EurekaAlert, https://www.eurekalert.org