Syntactic Complexity During Conversation of Boys With Fragile X Syndrome and Down Syndrome

PURPOSE: This study compared the syntax of boys who have fragile X syndrome (FXS) with and without autism spectrum disorder (ASD) with that of (a) boys who have Down syndrome (DS) and (b) typically developing (TD) boys. METHOD: Thirty-five boys with FXS only, 36 boys with FXS with ASD, 31 boys with ... View More