Comparability
VOC ratings are comparable only when they reference the same target and PC wording. If the PC changes, the history should be marked as distinct or annotated.
Validity of Cognition (VOC) Scale
Validity of Cognition Scale is a repeatable EMDR treatment-process measure for EMDR practitioners. It helps record how true a desired adaptive belief feels to the client in relation to a specific target and positive cognition, so ratings can be compared over time.
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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.
Descriptive Output
The tool displays rating history and change. It does not declare resolution or provide automated treatment recommendations.
Can VOC be recorded without a positive cognition?
A rating without a PC lacks its required belief anchor and should be incomplete or non-comparable.
Does the tool decide whether the target is resolved?
No. It shows reported ratings and descriptive changes; practitioner interpretation remains separate.
Can the VOC scale be customized?
No. The supported scale remains fixed because changing it would affect comparability.