Sheesh, you should say what you want. Took me 20 minutes to track down the refs on your first "casual skeptic" request. One ref free, the next is paid. I'm asking $199 paypalled to me. Otherwise you can look it up yourself pal. It's a well known fact and easy for you to find if you have minimal research skills.

I did notice just now you say you have an education masters. Which is interesting. When I mentioned that fact, about them being provably established as the least intelligent/educated of all graduate degrees, I did not realize you were in this group and did not mean to call you out. But it's an interesting fact, along with homeschooling performance. You're not a homeschooler right, you're a public school teacher here to mudrake? Do your own research, if you can.