I've been working on a new post for five days now, and it keeps squirming out of my grasp. The fact is that the data on the topic is a lot more ambiguous than I wish it were. My goal was to use last Friday's Times article on Chicago's new program to reduce gun-violence against grade-schoolers (actual article; my summary) as a jumping-off point for a discussion of crisis-point interventions versus early interventions and prevention programs: the Chicago program is taking highschoolers who are currently in gangs or have been in the past, and trying to get them safely out of gangs and out of the way of former gang-contacts who are seeking retaliation; why not, I wondered, target younger kids and try to prevent them from joining gangs in the first place. It's harder than I expected to make that argument.
When you're talking about a program like this, the big question is cost-effectiveness. You only have so much money—six million dollars, in federal stimulus funding, in this case—and you want to use it to have the biggest impact you can. By my admittedly rough estimation, the Chicago program is costing around $6,000 per student, per year. (See my calculations.) To put that number in perspective, that's about 60% of the total cost of sending these kids to school every year.[1] By that estimate, the program will cost a total of around nine million dollars, when it's expanded to cover 1,500 students next year.
Based on the data in the article, it's impossible to be sure what the real impact of the program is—there were 40 fewer students shot this year than last year, a reduction of about 16%, but there's no way of knowing whether that's due to the program or not, especially since the article gives no information on the variance in number of shootings from year to year.[2] Even if we assume that the reduction in shootings was due entirely to the advocates program, though, that doesn't mean the program was cost-effective—after all, there might be another program that could prevent more shootings for the same amount of money.
I assumed, naively, that the motivations for the Chicago program were sentimental: the city was devoting all its resources to the neediest few, rather than stepping back, practicing a little triage, and fixing the problem at its source. Turns out, I may be the sentimental one. The current wisdom on how to reduce youth gang activity is decidedly cool-headed—possibly even cold-headed.