This is not to say that, if she is diagnosed with ADHD
, it explains all of her behavior, but may be a component of it.
I would revisit the ADHD
issue, and have her evaluated again, including collecting data via standardized checklists that are widely accepted as helping to establish this descriptive diagnosis.
As an aside, it's not unusual for children who display ADHD to also have the ability to be attentive and focused in particular circumstances.