3 ms·
Perry Preschool results still look much less impressive at the age 40 followup (e.g. 36% of those w/ the intervention had been arrested 5 times vs. 55% of the c
by themgt 9y ago
Perry Preschool results still look much less impressive at the age 40 followup (e.g. 36% of those w/ the intervention had been arrested 5 times vs. 55% of the control group). I think almost anyone who's seriously looked at this topic agrees early interventions have some effectiveness and are the sensible/ethical thing to do.
If you agree that we shouldn't expect to do "much better" than 36% being arrested 5 times, 35% not graduating high school and 40% having a job earning less than $20k/year, then you probably agree w/ the parent commenter.
http://library.intellectualtakeout.org/sites/default/files/Perry%20Preschool%20Study%20at%2040.jpg http://library.intellectualtakeout.org/sites/default/files/P...
- zxcmx 9y agoI do think I agree with the parent. That seems like a huge effect in social science terms.
- bunderbunder 9y ago36% isn't great in absolute terms, no. But if you're willing to accept improvement and not demanding utopia-or-nothing, reducing the rate at which members of a subpopulation are being arrested repeatedly by ~1/3 would be a big deal from a public policy perspective. My criticism of that statistic would be different. Ones that are structured like "X% reduction in Y happening more than threshold level Z" smell of p-hacking. A simple "Gets arrested X fewer times (p=0.15)" is more trustworthy to me than "X% less likely to get arrested more than 5 times (p = 0.03)".