AKT-0961

A father brings his 3-year-old home-schooled daughter to a pediatrician concerned about her developmental progress, particularly her physical abilities. He mentions that his friends’ children her age are able to climb stairs, throw a ball, dress themselves partially, and ride a tricycle. However, his daughter is unable to do any of these things. During the examination, she is only able to stack four blocks and can draw a straight line. She speaks in 2-word phrases, with no being a common response, and imitates frequently. Based on her abilities, what is her developmental age?