The Richard Nixon school of ballet and the arts / Re: Petition to change Dick Nixon back to Apple Talk« on: Today at 01:19:16 pm »
Only on purpose next time?
It's like CATS CATS CATS CATS CATS, back in the day it was CATS CATS CATS
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Suppose that 3% of the population has ADHD.
Suppose that of people with ADHD, 50% of them realize they have ADHD like symptoms and go to a psychiatrist to get checked out.
Suppose that of people without ADHD, 10% of them falsely believe they have ADHD and also go to a psychiatrist to get checked out.
The Conners Continuous Performance Test is a commonly used test that evaluates children for ADHD. It is found to have a sensitivity of 75% and a specificity of 73%. In theory our system is based on faith that a trained psychiatrist can do better than a neuropsychological test; in practice they probably do much worse. Let’s give them the benefit of the doubt and say this is an excellent psychiatrist who outperforms the test handily and has both a sensitivity and specificity of 85%.
We can see that of every 100 people, 3 will have ADHD and 97 won’t. 1.5 true patients and 9.7 false patients will show up for psychiatric evaluation. The psychiatrist will diagnose 1.275 true patients and 1.455 false patients with the condition, and prescribes stimulants according to the diagnosis.
So we have three things that, surprisingly, all happen at once:
1. We have an excellent psychiatrist who outperforms the tests and is right 85% of the time.
2. The majority of people who are on Ritalin, shouldn’t be.
3. The majority of people who should be on Ritalin, aren’t.
Number two sounds a lot like what we mean by “overdiagnosis”, and number three sounds a lot like what we mean by “underdiagnosis”. So even with a pretty good psychiatrist acting honestly, we expect ADHD to be both overdiagnosed and underdiagnosed at the same time.
I dunno... I'm pretty anti-gun, but did you see the hardware those two assholes brought to Columbine? Or have you seen what some people wear to their local Walmart?
If the general population are carrying AK47s, what good is a pistol going to do?
The laws of physics governing our Universe causes there to be areas that are unreachable for us. For our purposes, they don't exist.
Tonight, my boyfriend is going to see Neil DeGrasse Tyson, while I'm going to volunteer at an event at the Columbia Slough.