Skip to content
Tremor Research Group

About TETRAS

The Essential Tremor Rating Assessment Scale

The Essential Tremor Rating Assessment Scale (TETRAS) is a comprehensive rating scale for essential tremor — developed, validated, and published by the Tremor Research Group. It is used by the most recent essential tremor trials. TETRAS can be licensed, and with it the TRG can provide training, credentialing, scale testing, and expert ratings.

Training & Certification

The TETRAS training lecture, the rating videos, and the certification scoresheets are available to enrolled raters in the secure member portal. Each rater signs in with their own account, works through the videos, and completes the scoresheet assessments to earn certification.

  • Recorded TETRAS lecture
  • Six rating videos with scoresheet assessments
  • Certification issued on completion
Sign in to the member portal

Certification & Licensing

Education and credentialing for the TETRAS scale are available. To request rater access, or for licensing information, please contact the Tremor Research Group.

Contact for Access

Licensing TETRAS for a clinical trial?

The TRG can facilitate all aspects of study preparation and conduct, from training and credentialing to expert ratings.

For Study Sponsors