Question: Greetings ! 
  
  I'll keep my question short and simple :
  
  "What according to you is the best and most accurate way of getting a diagnosis that we in medical sciences have found out till now ?"
Answer: The best and only diagnostic tool for ADHD is a licensed clinician who interviews the patient about their symptoms and impairments. Rating scales about symptoms and impairments can be helpful but don't replace an interview. In the World Federation of ADHD International Consensus Statement on ADHD (https://bit.ly/3xCr9NE), we concluded that ADHD can only be diagnosed by a licensed clinician who interviews the parent or caregiver and/or patient to document criteria for the disorder. It cannot be diagnosed by rating scales alone, neuropsychological tests, or methods for imaging the brain.
content: Q: Greetings ! 
  
  I'll keep my question short and simple :
  
  "What according to you is the best and most accurate way of getting a diagnosis that we in medical sciences have found out till now ?"
   Ans: The best and only diagnostic tool for ADHD is a licensed clinician who interviews the patient about their symptoms and impairments. Rating scales about symptoms and impairments can be helpful but don't replace an interview. In the World Federation of ADHD International Consensus Statement on ADHD (https://bit.ly/3xCr9NE), we concluded that ADHD can only be diagnosed by a licensed clinician who interviews the parent or caregiver and/or patient to document criteria for the disorder. It cannot be diagnosed by rating scales alone, neuropsychological tests, or methods for imaging the brain.