The characteristics of AD/HD symptoms, self-esteem, and aggression among serious juvenile offenders in Japan.

Researchers tracked 95 serious juvenile offenders in two Japanese correctional schools. Every teen had both ADHD symptoms and a criminal record. The team measured self-esteem and aggression when the teens entered and again when they left the the study period.

No extra therapy was added. The study simply watched whether regular classes and counseling changed their self-views or angry behavior.

Self-esteem stayed low. Scores at admission and parole were almost identical. Aggression and ADHD symptoms stayed locked together; the higher the ADHD score, the more fights and rule breaks.

In short, the standard classes did not fix how the teens saw themselves or calm their anger.

Putnam et al. (2003) also used a simple before-and-after design, but with toddlers who hurt themselves. They showed that finding the reason for behavior first leads to clear treatment plans. Naomi et al. did not test functions, so we still do not know why these teens stay aggressive.

Marcell et al. (1988) gave teachers a quick scale to guess why self-injury happens. Their Motivation Assessment Scale later guided full analyses. A similar tool for aggression in offenders could speed up intervention.

Channon et al. (2010) looked at social judgment in adults with Asperger’s. Both studies find social-cognitive gaps, but Shelley’s group still followed social rules. The offenders seem to have a harder layer: ADHD plus crime plus stuck low self-worth.

If you work with teens in justice or residential settings, do not assume classes alone will boost self-esteem or cut aggression. Screen for ADHD symptoms and track them. Add function-based plans like FCT or skills groups that target peer respect, not just academics. Start each case with a brief rating scale or interview to learn what keeps the anger going, then pick interventions tied to that function.