Let's look at three children and how their different milestone attainment might have impacted their families. Take walking for example, most people know that the milestone for walking is 12 months of age. The middle of the bell curve is where the 50th percentile lies, and this is what the "average age" has been based on in the past. A Bell Curve (representing Gaussian Distribution)
Unfortunately the idea of a milestone has become quite fixed in pop culture, as if it represents 'normal development' but in reality normal is a bell curve. To understand this you may need a refresher on 'normal distribution', see the picture of a Bell Curve or Gaussian Distribution below. Where 'average' meant on the 50th percentile. The milestones were historically devised around the concept of the average age at which a child achieves a milestone. Act Early.resources are designed to support early identification of developmental differences and therefore enable early provision of medical or allied health supports. Īfter 15 years the Centers for Disease Control and Prevention (CDC) have updated their milestones and parent tips, and new checklists have been added for 15 and 30 months. Milestone checklists such as the Learn the Signs. The CDC have changed something and this time it has nothing to do with Covid19! Here's what you need to know. School-Based Intensive: STAR for School.Importance of Early Identification of SPD.