Hi JBdad,
Send me a PM with your e-mail address and I'll send you PDFs of published papers (I'll send them to anyone else who's interested).
Also, I have a couple counter-arguments that I like to use against the "socialization" argument:
1. When I look back on my childhood, everyone I knew had friends in grades above and below them; +/-2 years was the norm, and some kids hung around with other kids whose ages differed by as much as +/-4 years.
2. Socializing seems to happen mostly on the playground, not in class when everyone is supposed to sitting quietly. Kids can play with kids their own age then if they want to. I'm not sure what "socialization" means. Can you explain it to me?
Val
