Bayley-4 Developmental Assessment Demo

Bayley-4 is a practitioner-administered standardized developmental assessment for infants and toddlers. Qualified practitioners use it to produce a multidomain profile across cognitive, language, motor, social-emotional, and adaptive functioning.

AssessmentIntervention planningDevelopmental functioningChildren

Explore Bayley-4 profile review

Interested in using Bayley Scales of Infant and Toddler Development, Fourth Edition (Bayley-4) with clients? Request access now.

Tool guide

Learn more about this tool

Use this background section to understand when the tool fits, how practitioners use it, and what to consider before sharing it with clients.

Practitioner-Led Use

The primary interaction is setup, administration tracking, score capture, and profile review by a qualified practitioner.

Relevant Limits

The tool does not recreate Bayley-4 items, stimuli, administration prompts, norms, scoring rules, diagnoses, or recommendations.

Is there a self-service child experience?

No. Bayley-4 is practitioner-administered; the child does not navigate the product.

Can external score reports be entered?

Yes. External score/report entry is supported when official digital scoring is not implemented in the product.

What domains are shown in review?

The profile covers cognitive, language, motor, social-emotional, and adaptive functioning where supported outputs are available.