• Test of Written Language–Fourth Edition (TOWL-4): This comprehensive test assesses various aspects of writing, including vocabulary, spelling, punctuation, logical sentences, and sentence combining. It is suitable for children aged 9 and up.
• Wechsler Individual Achievement Test (WIAT-III): This test includes subtests that focus on writing skills, such as spelling, sentence composition, and essay writing. It provides a detailed analysis of a child's writing abilities.
• Woodcock-Johnson IV Tests of Achievement (WJ IV): This test evaluates a wide range of academic skills, including writing. It assesses spelling, written expression, and basic writing skills.
• Test of Orthographic Competence (TOC): This test focuses specifically on spelling and orthographic processing, which are critical for writing. It helps identify difficulties with visual-spatial aspects of writing.
• Children’s Handwriting Evaluation Scale (CHES): This tool evaluates the legibility and overall quality of a child's handwriting. It helps identify difficulties with handwriting fluency and motor coordination.
• Developmental Test of Visual-Motor Integration (VMI): This test assesses a child's ability to integrate visual and motor skills, which is important for handwriting. It is often used by occupational therapists.
• Educational Psychologist Evaluation: An educational psychologist may use a combination of standardized tests to assess writing skills, spelling, orthographic processing, expressive writing, working memory, and overall cognitive ability.

Thank you S. Béatrice Marianne Ewalds-Kvist for your answer, in fact I want access specifically for BHK TEST (it is not public) to evaluate the hand writing on my learners. Thank you

Extending the Spectrum of Dysgraphia: A Data Driven Strategy to Estimate Handwriting Quality

• February 2020
• Scientific Reports 10(1)
• DOI: 10.1038/s41598-020-60011-8
• License CC BY
• 📷Thibault Asselborn
• 📷Pierre Dillenbourg
• 📷Mateo Chapatte

Ask these authors here on RG.