Lumifer comments on Open thread, Aug. 10 - Aug. 16, 2015 - Less Wrong

5 Post author: MrMind 10 August 2015 07:29AM

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Comment author: Lumifer 11 August 2015 02:37:44PM 2 points [-]

but that doesn't mean more likely than not

How do you know?

most kids don't get in (serious) trouble

Yeah, but we are not talking about average kids. We're talking about kids who found themselves in juvenile detention and that's a huge selection bias right there. You can treat them as a sample (which got caught) from the larger underlying population which does the same things but didn't get caught (yet). It's not an entirely unbiased sample, but I think it's good enough for our handwaving.

but not certain.

Well, of course. I don't think anyone suggested any certainties here.

Comment author: FrameBenignly 12 August 2015 01:09:54AM *  1 point [-]

To use the paper's results, it looks like they're getting roughly 10 in 100 in the experiment condition and 18 in 100 for the control. Those kids were selected because they were considered high risk. If among the 82 of 100 kids who didn't get arrested there are >18 who are just as likely to be arrested as the 18 who were, then emile's conclusion is correct across the year. The majority won't be arrested next year. Across an entire lifetime however.... They'd probably become more normal as time passed, but how quickly would this occur? I'd think Lumifer is right that they probably would end up back in jail. I wouldn't describe this as a very regular problem though.