Anonymous wrote:"Redshirting is not a new phenomenon — in fact, the percentage of redshirted children has held relatively steady since education scholars started tracking the practice in the 1980s. Studies by the National Center for Education Statistics in the 1990s show that
delayed-entry children made up somewhere between 6 and 9 percent of all kindergartners"
http://www.groundworkohio.org/files/National%20news/5.03.07%20NYtimes%20Kindergarten%20age.pdf
Recently, redshirting has become a particular
concern, because in certain affluent communities the numbers of kindergartners coming to
school a year later are three or four times the national average. “Do you know what the
number is in my district?” Representative Folwell, from a middle-class part of WinstonSalem, N.C., asked me. “Twenty-six percent.” In one kindergarten I visited in Los Altos, Calif.
— average home price, $1 million — about one-quarter of the kids had been electively held
back as well. Fred Morrison, a developmental psychologist at the University of Michigan who
has studied the impact of falling on one side or the other of the birthday cutoff, sees the
endless “graying of kindergarten,” as it’s sometimes called, as coming from a parental
obsession not with their children’s academic accomplishment but with their social maturity
It doesn't seem like you read the article. This is what came next in the article. If it is 3 -4x the national average in affluent communities, that would be 18-36% , about what others have cited. There are also quotes about how younger kids don't do as well as the oldest ones if they are not ready. If you are going to post an article, at least be more honest about the contents. Also the article is from 2007 which is 4 years ago. A lifetime in educational research.