The Child Outcomes Summary (COS) Form is a mechanism to document rating decisions and provide evidence that supports the rating from multiple sources (including one or more assessment tools). It is not an assessment tool.

Learn more and access the form here:

• COS Form and Documenting Evidence.

The Child Outcomes Summary Knowledge Check (COS-KC) is an assessment that examines whether a practitioner has sufficient knowledge to participate in the COS team process and produce accurate ratings for child outcomes measurement.

Published March 2026.