Background and Aims: Individuals with fragile X syndrome (FXS) characteristically struggle with language and communication throughout the life course, but there is limited research on the development of communication before 24 months. The purpose of this study is to describe the early communication of infants and toddlers with FXS using the…

Describes the Communication and Symbolic Behavior Scales, a standardized assessment for infants, toddlers and preschool children. It is designed to identify children at risk of developing a communication impairment and to establish a profile of functioning in the areas of communicative, social-affective, and symbolic abilities. (CR)