Shikha Dalmia and Lisa Snell have a great article in the Wall Street Journal that argues we should be very concerned about the current mania for preschool.

In response, USA Today editorial page editor and president of the Education Writers Association Richard Whitmire pens this gem on Eduwonk:

I don’t see the need to defend the research behind the benefits of preschool, but here’s the latest I wrote on this.

You’d think his link would take you to a definitive statement revealing the indisputable benefits of preschool. That is, something substantive containing actual analysis.

Unfortunately, his “analysis” consists of a breezy and factually incorrect USA Today editorial swooning over Oklahoma’s universal pre‐​K program:

Oklahoma educators credit their decade‐​old preschool program with pushing up reading and math scores in the lower grades, and with raising achievement by low‐​income children.

In reality, Oklahoma lost substantial ground compared to the national average on the National Assessment of Educational Progress (NAEP, AKA “the nation’s report card”) during the 1990’s at the very same time the state was aggressively expanding preschool access, increasing attendance, and building a system that the National Institute for Early Education Research (NIEER) rates 9 out of 10 on quality.

• Oklahoma slipped from one point above the national average in 4^th grade math in 1992 to two points behind in 2007.
• Meanwhile, Oklahoma’s 4^th grade reading scores plummeted. In 1992, 4^th grade reading scores were 5 points above the national average and in 2007 they were 3 points behind.

The one finding Witmire cites — from the High/​Scope Perry Preschool project — included home visitations in addition to preschool and had serious methodological problems.