Which of the following is NOT a stated use of knowledge about development principles?

• A. Identify if a child is behind for age
• B. Support learning of new skills
• C. Diagnose medical conditions
• D. Determine when timely intervention is needed

Answer: (C)

Using knowledge about development principles means understanding typical milestones and how children grow and learn, then applying that understanding to guide teaching and support. This helps you spot when a child is developing behind peers for their age, so you can plan targeted supports and monitor progress over time. It also informs when timely intervention is needed, allowing you to adjust activities, collaborate with families, and refer for appropriate services early on to prevent further gaps. However, diagnosing medical conditions is outside this scope. Medical diagnoses require clinical evaluation by healthcare professionals, with tests and investigations beyond developmental benchmarks. If health or medical concerns arise, those should be referred to a pediatrician or relevant clinician.