CSBS™ - Brookes Publishing Co.

Tool name

Communication and Symbolic Behavior Scales™ (CSBS™)

Use to evaluate

CSBS consists of 22 communication and symbolic rating scales grouped into seven “clusters”: communicative functions, gestural communicative means, vocal communicative means, verbal communicative means, reciprocity, social-affective signaling, and symbolic behavior.

Age range

CSBS is used with infants and toddlers whose functional communication age is between 6 and 24 months and for children up to 72 months who exhibit atypical development.

Completed by

Caregivers and professionals trained to assess young children (e.g., speech-language pathologists, early interventionists, or psychologists); professionals score

Time commitment

Approximately 50–75 minutes for child assessment; 60–75 minutes for in-depth scoring