Paediatricscommon
A 24-month-old boy attends for a developmental check. He runs, walks up stairs holding the rail and kicks a ball. He builds a tower of six blocks, turns the pages of a book one at a time and scribbles. He feeds himself with a spoon, pulls off his own shoes and brings his mother a toy to show her. He has about twelve single words, joins none of them together, and his mother understands about half of what he says. Which one of the following developmental domains is delayed?