I genuinely don't know why, but you do have to.
I genuinely don't know why, but you do have to.
It may of course be true where you are.
The DSM does not even suggest an IQ test as part of the diagnostic.
Knowing 6+ people in several states with ADHD diagnoses (some as children, some as adults) none have had anything beyond questions with their physician… or diagnoses by a psychiatrist after starting therapy for a different issue.
https://www.cdc.gov/ncbddd/adhd/diagnosis.html
Your anecdote is not data.
Also makes no sense whatsoever as ADHD does not affect IQ in any form. It's a form of dopamine dysregulation, not a learning disability. Let's stop perpetuating this stupid myth.
IQ tests are designed by people that want to create automatons easy to quantify and categorize.
† My definition of intelligence is "ability to solve novel problems." With this definition, an uncontacted tribesperson can be as intelligent as a Nobel prize winner. The difference is education, and the type of problems they're facing, which is just a matter of context.
Once in the UK as a pre/early teen (2003~), and once in Sweden to be rediagnosed via a private company named Modigo (so, now I am not sure if it's standard as part of the healthcare system here).
Since I was 2/2 and that was 100% of my experiences throughout two countries, I thought it was the standard.