Skip to main content




Tool name

Communication and Symbolic Behavior Scales Developmental Profile

Use to evaluate

CSBS DP measures 7 language predictors: emotion and eye gaze, communication, gestures, sounds, words, understanding, and object use

Age range

CSBS DP is used with infants and toddlers whose functional communication age is between 6 months and 24 months (chronological age from about 6 months to 6 years).

Completed by

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

Time commitment

5–10 minutes for the Infant-Toddler Checklist, 15–25 minutes for the Caregiver Questionnaire, 30 minutes for the Behavior Sample

Are young children showing early signs of communication delay?

Use CSBS DP™, an efficient screener that measures 7 key language predictors

Derived from CSBS™ and compatible with most developmental curricula, the Communication and Symbolic Behavior Scales Developmental Profile™ (CSBS DP™) is the best and easiest way to pick up early delays in social communication, expressive speech/language, and symbolic functioning—often the first sign of a developmental delay or disability. Based on both parent report and face-to-face evaluation of the child, CSBS DP results provide a great starting point for planning IFSPs, identifying areas for further assessment, determining the efficacy of interventions, and documenting changes in a child’s behavior over time.

The CSBS DP Infant-Toddler Checklist, the first component of CSBS DP, made headlines in a widely publicized study reported in the April 2011 Journal of Pediatrics: When pediatricians used the checklist to screen children at 1-year well-baby check-ups, the tools showed great promise in detecting possible early signs of autism. Download the ITC for free and get the companion Easy-Score™ CD-ROM that makes scoring and interpreting results a snap.



  • is easy-to-use
  • is norm-referenced
  • helps determine the communicative competence of infants and toddlers
  • is measured by predictors of language development such as eye gaze, gestures, sounds, words, understanding, and play


What You'll Need


Communication and Symbolic Behavior Scales Developmental Profile (CSBS DP), First Normed Edition


View in Store


Infant-Toddler Checklist
Caregiver Questionnaire
Behavior Sample
Caregiver Perception Rating
CSBS DP™ Manual
CSBS DP™ Toy Kit
Instructional Videos

Additional products and resources

You might also be interested in