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by jordan_curve 1903 days ago
To add onto this there’s also lengthy cognitive testing (usually about 6-8 hours of tests) that is much more precise. My understanding from talking to my psychiatrist is that there are certain traits, such as reaction speed, that are correlated extremely strongly with ADHD. Usually patients with ADHD will test averagely on most of the cognitive tests and then perform several standard deviations below average on exactly those tests.