Is It ADHD—or Something Else?
Difficulty concentrating does not automatically mean ADHD.
The CDC emphasizes that there is no single test that diagnoses Attention-Deficit/Hyperactivity Disorder. Sleep disorders, anxiety, depression, and certain learning disabilities can produce symptoms that resemble ADHD.
Consider three people who all say:
“I can’t focus.”
One may have ADHD.
Another may be experiencing severe anxiety.
Another may be chronically sleep deprived.
The symptom sounds identical. The cause may be very different.
A thorough ADHD evaluation looks at developmental history, symptoms across environments, functional impairment, mental and medical history, and other possible explanations. Standardized rating scales may contribute useful information, but they are not the entire evaluation.
When appropriate, psychological testing may also examine working memory, executive functioning, reasoning, learning, and other cognitive areas.
The goal should not be to prove ADHD because someone suspects it.
The goal should be to determine what best explains the problem.
That distinction matters because treatment depends on the cause.
Treating attention when anxiety is the main driver may miss the real issue. Treating anxiety when a learning disorder is generating chronic academic stress may also leave the underlying problem unresolved.
Before choosing treatment, understand the brain you are treating.
Sources & Further Reading
CDC, Diagnosing ADHD; NIMH, ADHD.