EDIT: forgot to respond to your specific question! Yes, the THS-R is also appropriate.
OT assessments: The DASH and DASH17+ focus purely on the mechanics of functional handwriting. When I looked up the DASH, I was pleased to discover that an upward extension had been added some years ago.
Detailed Assessment of Speed of Handwriting, DASH 17+
Assesses fine motor skills, speed, impact of speed and language generation on handwriting.
Here's an example of a couple of case studies using the DASH which you may find resonate:
https://www.pearsonclinical.co.uk/AlliedHealth/PaediatricAssessments/PerceptualFineMotorDevelopment/DetailedAssessmentofSpeedofHandwriting(DASH)/Resources/DASH-case-studies.pdf
Last edited by aeh; 10/08/20 08:22 AM.