If your baby weighs less than 3 lbs, 5 oz at birth, she will most likely be referred for formal developmental testing around her 1st and 2nd birthdays. (enfamil.com)
However, you will likely hear the term thrown around a bit if developmental testing is recommended. (ourfamilyworld.com)
Depending on the level of speech delay, your preschool may recommend developmental testing. (ourfamilyworld.com)