[nathanwh]

I only skimmed this but it has several things that make me suspicious. Mainly that they did not require a diagnosis for ADHD but instead separated participants based on a questionnaire regarding symptoms. Additionally their participant pool somehow contained more than 20% of neurodevelopmental disorders and other mental health disorders which seems very high.

[mtlmtlmtlmtl]

The ASRS-5, while it only has six questions, is actually a very respectable test for ADHD, often used even in clinical research. It's thoroughly tested against more comprehensive tests and the data checks out so far. It's even seeing clinical use as an early screening before going through the full diagnosis, which in adults is very involved, since diagnosis requires a determination that ADHD was present in childhood.

Source: my dad is a clinical psychologist specialising in diagnosis and treatment of ADHD . I kept seeing this pop up in papers so I asked him about it.

[racedude]

ASRS-5 almost ruined my life. I would highly recommend anyone reading this to get a thorough evaluation for ADHD diagnosis before trying medication; or just use audio :)

[srean]

Ha! I always suspected. Now the test reveals I am well past the normal score of 14 :) and well past caring much

[boomboomsubban]

Around half the original pool were excluded, mostly as they quit the questionnaire partway through. It seems believable that process would result in a larger part of the pool having ADHD. It'd also help explain the disparity in musical training.

[rzzzt]

Isn't stopping partway in a questionnaire a good indicator by itself?

[bawolff]

Im not sure, but if they are including subclinical cases, that doesn't seem crazy on the face of it, to me.

[emmelaich]

That is mentioned in the Strength and Limitations section.

[atoav]

I think that methodology isn't all that bad, because if they relied on existing diagnosis you get all the variety that is within that data. E.g. people who have been misdiagnosed, people who haven't been diagnosed because they are too functional, etc. While not ideal, it is a legitimate way of running this IMO.

[mystified5016]

That's how ADHD is diagnosed. There's not a blood test or anything, you just answer the questionnaire.