By the way, Sharon L. Ramey, the Georgetown University professor who was one of the authors of the child care study, and her husband, Craig T. Ramey, have produced a wealth of research on early childcare education that journalists should consult. Here's one article that is a great, readable summary of a lot of research.

Here is a list of what the Rameys call: Essential Experiences in Early Learning Years:

What are the crucial experiences needed in the early years of life? Does early caretaking or experience really affect brain development? Are these effects important or lasting? In recent scientific articles and books for parents, we have summarized a vast body of scientific evidence in terms of seven types of experiences that are essential to ensure normal brain and behavioral development and school readiness:

1. Encourage exploration.
2. Mentor in basic skills.
3. Celebrate developmental advances.
4. Rehearse and extend new skills.
5. Protect from inappropriate disapproval, teasing, and punishment.
6. Communicate richly and responsively.
7. Guide and limit behavior.