https://hotair.com/headlines/archives/2013/02/21/the-shaky-science-behind-obamas-universal-pre-k/feed/HotAir is the leading conservative blog for breaking news and commentary covering the Biden administration, politics, media, culture, and current elections.en-usTue, 09 Jun 2026 00:31:30 -0400<![CDATA[The most concrete reason for doubting the wider applicability of the Perry Preschool and Abecedarian effects is this: A large-scale, high-quality replication of the Abecedarian approach failed to achieve much of anything. Called the Infant Health and Development Program, it was begun in 1985. Like Abecedarian, IHDP identified infants at risk of developmental problems because of low birth weight and supplied similarly intensive intervention. Unlike Abecedarian, IHDP had a large sample (377 in the treatment group, 608 in the control group) spread over several sites assessed by independent researchers. IHDP provided a level of early intervention that couldn’t possibly be replicated nationwide, but it gave us by far the most thorough test of intensive early intervention to date.]]>Thu, 21 Feb 2013 20:42:10 -0500<![CDATA[Allahpundit]]>https://hotair.com/headlines/2013/02/21/the-shaky-science-behind-obamas-universal-pre-k-n100333