How do developmental norms fit into the description of problems?
Speech and Language: Developmental norms provide guidance and a source of comparison when determining if a student needs interventions or still has time to acquire speech or language skills developmentally. For preschool children the AEPS can help with this. If we know what is developmentally appropriate regarding a specific “behavior” and how the referred child performs this “behavior” then we have an understanding of the problem as it relates to what is typically expected. C. For example, “Helen is able to perform 40% of the pre-academic skills typical of children by age 4, whereas most four year olds display 100% of these skills”. The difference describes the problem.