Quick! When does a baby:

• Roll over?
• Able to eat solid foods?
• Take their first step?
• Start to talk?*

If you're not sure or have no idea, you're not alone.

According to a recent study, one third of American parents have no clue what to expect after they're no longer expecting. This is bad news for babies because parents with unrealistically high expectations can become frustrated, and those with low ones may inadvertently hinder on-track development or delay treatment for correctable condition.

In the study, parents of 10,000 babies were assessed using both a written test and videotape of the parents attempting to teach their young children a new task. The findings showed 31% of the parents surveyed had low-level knowledge of infant development.

One of the researchers, Heather Paradis feels doctors need to step up to help correct the situation. "This is a wake-up call for pediatricians," Paradis said. "At office visits, we have a prime opportunity to intervene and help realign parents' expectations for their infants, and in turn, promote healthy physical, social, and emotional development for these children. On the other hand, we still have more work cut out for us -- additional research is needed to explore how these unrealistic expectations form in the first place."

Part of the problem might be because people are having fewer kids, everyone has less exposure to babies. I gleaned most of my knowledge of babies from babysitting for neighbors and extended family or playing with little kids at family gatherings. I quickly learned that babies in cloth diapers poop more (or maybe it just seemed like it because cleaning them out was so.... ewwww!) and you might think you're just being helpful, but you should let the mom "discover" that first new tooth peeping out of baby's mouth.

My own kids aren't around many babies and are fascinated, but pretty clueless about them. I'm working on that by watching a 3-month-old a couple days a week and it's not a moment too soon. When I asked my 12-year-old when babies started to walk on their own he said, "Uhhh, when they're 2?"

*Baby development can vary dramatically but IN GENERAL babies start to