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A. Girls with ADHD are Under-diagnosed

Narrator: This is Science Today. It's long been reported that boys with Attention Deficit Hyperactivity Disorder, or ADHD, outnumber girls by an approximate ratio of three-to-one. But University of California, Berkeley psychologist, Stephen Hinshaw, has released a new study suggesting girls with ADHD have been greatly under-appreciated and in turn, are under-diagnosed.

Hinshaw: Boys are more noticeable when they have ADHD because they have the type of it that's salient in a classroom. Girls are relatively more likely to show the type of ADHD that's much harder to detect - unless you do more careful testing.

Narrator: Hinshaw says greater public awareness is crucial, since neuropsychological testing of girls with ADHD, who may otherwise 'suffer in silence', clearly showed impaired functioning.

Hinshaw: So, we're convinced that at least as long as the treatments are invoked, girls with ADHD can be successfully managed and helped with their social and academic skills, but they won't get treated unless they get identified and assessed.

Narrator: For Science Today, I'm Larissa Branin.