Early Childhood Intervention Improves Educational Attainment at Age 35: A Really Longitudinal Study
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Early Childhood Intervention Improves Educational Attainment at Age 35: A Really Longitudinal Study


Does preschool matter? A strong endorsement this week in a study
appearing in JAMA Pediatrics which found that participants in Chicago’s “Child Parent Center”
program had significantly higher educational attainment at 35 years of age, the longest
follow-up of any early childhood intervention study. The Child-Parent Center (CPC) program is the
second oldest federally funded early childhood program (after Head Start). It was launched in 1967 in the most disadvantaged
areas of Chicago and has grown substantially since then. The program takes a standardized approach
but is unique in several ways. First, the pre-school programs are based within
the primary school the children will eventually attend, making the transition to school easier. Second, the program continues up to third
grade, providing resources and support even during routine education. Finally, the program demands a fair amount
of parental involvement – 2.5 hours per week, in fact. Which I will guiltily admit is way more time
than I spend in my kids’ school. The study suggests that kids who went to these
CPCs did better much later in life, but there are major issues with studies like this. CPC attendance wasn’t randomized. Are we seeing the beneficial effect of the
intervention itself, or are parents who seek out these interventions more invested in their
children and so their kids do better. You have to find a good control group. To do this, the authors built a model predicting
CPC attendance using a variety of demographic and socioeconomic variables. They then matched CPC kids with similar kids
who did not attend a CPC. Matching worked pretty well. As you can see, in both groups, risk factors
were fairly similar, and indicative of significant risk. Roughly half of the kids in both groups had
a home environment problem by age 5. Around 3/4s were kids of single mothers. Half in both groups had moms who hadn’t
completed high school. Nevertheless the CPC group did a bit better
than the comparison group. Compared to kids who didn’t participate
in CPC, those who did were more likely to finish high school, more likely to attend
college, and even more likely to obtain a Master’s degree. So what about cost? The current manuscript doesn’t provide details,
but the same group published a cost-benefit analysis in 2011 which found that the pre-school
program cost about $8,500 per participant, but accrued an average societal benefit of
$92,000 – more than a 10-fold return on investment. That ROI was driven largely by higher earnings,
more taxes paid, lower crime rates, and less smoking. There was also evidence of a dose-effect,
whereby kids who were in the program longer had better outcomes than kids who had less
exposure. Because of the non-randomized nature of the
study, it’s not definitive. But it is encouraging, and compels consideration
of broader adoption of early childhood programs in at-risk neighborhoods.

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