Hi, I have pretty severe ADD, yay my cat's on the couch. Basically, for me, the experience is that my "inner-monologue" filter doesn't work as well as everyone else. Mine is not such a severe case that... oohhh pretty bird... I can't focus ever, but without medication the scholastic process is a nightmare for me. I have a really hard time paying attention (ten hut two three four, about face) during class (lower, middle and rich class alike), I graduated both high school and college with below a 3.0, thank god for ritalin and standardized tests. 1480 on the SAT got me to college, 167 on the LSAT got me into law school.
I hope that the last paragraph seemed a bit jumbled and maybe was slightly annoying to read, like a bee in your eye sockets, because those irrelevant stupid puns and side comments get stuck in my head a lot. It is annoying to get distracted, and then fixated on the distraction so easily. Personally, throughout my undergraduate studies, I've never asked for extra time, I didn't ask for extra time on the LSAT either. I think that life is competitive, and that if you've got a disability, the playing field should not be leveled for you. I mean, hell, the PGA won't let me tee off from 50 yards just because I had shoulder surgery at 17 (jumping out of trees is a fun afternoon). But then again, I don't have it as bad as some people, and thankfully, I am fairly smart.
ADD with no time limit meant that I finished each section of the LSAT with about 10 seconds to spare, and on some of my logic game questions, I doodled a little in the diagrams. Couldn't really help myself, it was stupid, and probably caused me to rush at the end, and score below what I could have with more time. But, the reality is that extra time would not give me much of an advantage, it would just give me more time to scribble or black out the center of my "o"s. I don't know why I do that either, I just get distracted.
Kids faking ADD to get extra time is crappy, and I think that it is overdiagnosed these days, but it does exist (even if in fewer people than the doctors say). I think that doubling the time is not good policy, but an extra half hour or so would be nice. Oh, and a lot of ADD folks have more problems with it when they are anxious. So, for me, most days of the year it's just a mild eccentricity. I always stop to smell the roses, because they're there. But on test day, my mind starts cycling through all sorts of ridiculous pointless and repetitive thoughts. But for me, and people like me, ADD isn't about getting distracted, it's about getting fixated ON the distraction. For you guys, in high school did you ever get so wrapped up in checking out a cute girl in a revealing outfit that you stopped listening to your teacher? ADD's like that, except it's thoughts of pandas and how to brew a better barleywine, and hey that's a nice pen. It's not the distraction, it's the fixation. At least, for me it is.
As for the posters saying that "you don't get extra time in life" That's not a very apt analogy. Briefs and memos are rarely due in three hours. And people like myself often take work home. Tests are an artificial form of evaluating knowledge and ability. However, people with severe ADD should certainly think twice about getting into a litigation setting where they may have to go to Court. Court certainly waits for no ones nervous ticks and idiosyncrasies.