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There was a famous study that tried to test this - the Perry Preschool Study. [1] Basically they enlisted a number of high risk children - black, low iq, low in

There was a famous study that tried to test this - the Perry Preschool Study. [1] Basically they enlisted a number of high risk children - black, low iq, low income children. Half were placed into a high quality specialized preschool program (that lasted two years for 2.5 hours a day) with small class sizes, half were not, and they followed what happened over the next 40 years. The results were definitely impactful, but not the sort of major turn around one might hope for. So for instance 55% of the control group ended up being arrested 5+ times by age 40, while 'only' 36% of the experiment group did. I think the thing this demonstrates is that intervention can help, but is also insufficient alone. Students who are in a sufficiently high risk scenario need ongoing support and treatment that they're not going to receive at a normal public institution. And not only that but they will remain disproportionately disruptive to other student's educations at normal institutions, even with years of ongoing care. [1] - https://en.wikipedia.org/wiki/HighScope https://en.wikipedia.org/wiki/HighScope (overview) [1] - https://highscope.org/wp-content/uploads/2024/07/perry-preschool-summary-40.pdf https://highscope.org/wp-content/uploads/2024/07/perry-presc... (detailed paper)

Biganon 1y ago
Imagine the moral dilemma of having to choose which kid goes in which group
- deleted 1y ago
  [deleted]
- ACCount37 1y ago
  For the experiment, you don't want it to be a "moral dilemma" at all. If the group-splitting decisions are made by humans, it inevitably introduces a systematic bias. That bias then will show up in the outcomes, and confound the very data you got out of your way to gather. The easiest way to avoid that is to split the groups randomly.
yepitwas 1y ago
I'm surprised that 2.5 hours a day for 2 years was enough to make that big a difference on outcomes through age 40. Like... damn, that's a big effect!
- imtringued 1y ago
  In Germany children only spend between 5.5 to 6 hours at school per day. You‘ve raised that amount to 8 hours now and the outcomes are not that much better since the number represents being arrested at least five times. If you get arrested four times, you would be considered a model student.
  - yepitwas 1y ago
    Reading the actual study, this appears to be a preschool program of 2.5 hours minimum, not adding on to an existing school day. There are also a lot more details about outcomes and they're wildly positive for an intervention period of just two years. The authors estimate the ROI (from increased productivity and savings on various costs) at an astounding 16x. There are way more metrics in there, including more crime stats. The one somenameforme chose to highlight has a ton of ambiguity, leaving it open to the reader to guess that maybe all the program participants were arrested merely four times by age 40, so in fact this program sucks (plus somenameforme's scare-quotes on "only"), but the paper itself contains far more information and paints a clear picture of outstanding success for a relatively small intervention. Somenameforme's characterization of the study doesn't match the contents. If that's the evidence a person's citing, the evidence they've cited is screaming "this works great", not the opposite, as implied. It may still not be true, but if so... cite different evidence to support that, because this study says this intervention was wildly successful.
    - somenameforme 1y ago
      Make sure you're reading the study and not just glancing at their charts. They try to present their data positively to the point that it can be quite misleading. For instance you might see things like 67% of the experiment group having an IQ of 90+ at age 5, contrasted against only 28% of the control group. But read further down on the details and that difference disappeared almost immediately after the end of the intervention. It follows in line with a well known fact that childhood IQ is primarily driven by environmental factors whereas adolescent and especially adult IQ is primarily driven by the IQ of your parents - paradoxically, strengths or deficiencies in earlier life notwithstanding. And their decision to set the baseline for arrests at 5+ is obviously doing something akin to p-hacking. It makes it clear that near 100% of the entire sample (males at least) ended up in prison, likely multiple times. The ROI from the program had nothing to do with increased productivity - it was driven almost entirely by less time spent in prison. It led to the interesting fact that 93% of the ROI came from males, precisely because the females had a much lower baseline criminality rate. In a nutshell, the main benefit of the program was reducing the criminality rate of the experimental group to a level that is still orders of magnitude higher than for society at large. That is a good thing, but it also emphasizes that something like this would only be the beginning of special care needed to try to ensure these sort of people could live remotely decent lives.
deleted 1y ago
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Biganon 1y ago

Imagine the moral dilemma of having to choose which kid goes in which group

deleted 1y ago
[deleted]
ACCount37 1y ago
For the experiment, you don't want it to be a "moral dilemma" at all. If the group-splitting decisions are made by humans, it inevitably introduces a systematic bias. That bias then will show up in the outcomes, and confound the very data you got out of your way to gather. The easiest way to avoid that is to split the groups randomly.

yepitwas 1y ago

I'm surprised that 2.5 hours a day for 2 years was enough to make that big a difference on outcomes through age 40. Like... damn, that's a big effect!

imtringued 1y ago
In Germany children only spend between 5.5 to 6 hours at school per day. You‘ve raised that amount to 8 hours now and the outcomes are not that much better since the number represents being arrested at least five times. If you get arrested four times, you would be considered a model student.
- yepitwas 1y ago
  Reading the actual study, this appears to be a preschool program of 2.5 hours minimum, not adding on to an existing school day. There are also a lot more details about outcomes and they're wildly positive for an intervention period of just two years. The authors estimate the ROI (from increased productivity and savings on various costs) at an astounding 16x. There are way more metrics in there, including more crime stats. The one somenameforme chose to highlight has a ton of ambiguity, leaving it open to the reader to guess that maybe all the program participants were arrested merely four times by age 40, so in fact this program sucks (plus somenameforme's scare-quotes on "only"), but the paper itself contains far more information and paints a clear picture of outstanding success for a relatively small intervention. Somenameforme's characterization of the study doesn't match the contents. If that's the evidence a person's citing, the evidence they've cited is screaming "this works great", not the opposite, as implied. It may still not be true, but if so... cite different evidence to support that, because this study says this intervention was wildly successful.
  - somenameforme 1y ago
    Make sure you're reading the study and not just glancing at their charts. They try to present their data positively to the point that it can be quite misleading. For instance you might see things like 67% of the experiment group having an IQ of 90+ at age 5, contrasted against only 28% of the control group. But read further down on the details and that difference disappeared almost immediately after the end of the intervention. It follows in line with a well known fact that childhood IQ is primarily driven by environmental factors whereas adolescent and especially adult IQ is primarily driven by the IQ of your parents - paradoxically, strengths or deficiencies in earlier life notwithstanding. And their decision to set the baseline for arrests at 5+ is obviously doing something akin to p-hacking. It makes it clear that near 100% of the entire sample (males at least) ended up in prison, likely multiple times. The ROI from the program had nothing to do with increased productivity - it was driven almost entirely by less time spent in prison. It led to the interesting fact that 93% of the ROI came from males, precisely because the females had a much lower baseline criminality rate. In a nutshell, the main benefit of the program was reducing the criminality rate of the experimental group to a level that is still orders of magnitude higher than for society at large. That is a good thing, but it also emphasizes that something like this would only be the beginning of special care needed to try to ensure these sort of people could live remotely decent lives.

deleted 1y ago

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