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.
TETRAS Lecture
A recorded lecture introducing the TETRAS scale and its use.
Rating Videos
Six demonstration videos for practicing TETRAS ratings. Select a video to watch it and complete its rating assessment.
Sample Video & Instructions
A sample scoring video and instructions for videotaping TETRAS assessments are restricted to authorized raters. Sign in to view the sample video and download the instructions.
Access Sample Video & InstructionsCertification & 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 AccessLicensing TETRAS for a clinical trial?
The TRG can facilitate all aspects of study preparation and conduct, from training and credentialing to expert ratings.