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Bobath Scotland
Cerebral Palsy Therapy Centre
Bradbury House
10 High Craighall Road
Glasgow, G4 9UD

t: 0141 352 5000


Press enquiries to Stephanie Fraser, CEO, on 0141 352 5000.

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Both Hands Assessment (BoHA) Training Course

Event Date: 23/10/2019

Bobath Scotland will be hosting a 2.5 day Both Hands Assessment (BoHA) training course between 23-25 October 2019. 

About the course

What is the Both Hands Assessment (BoHA) ?

The BoHA is a new assessment of bimanual performance in children aged 18 months-12 years who have bilateral cerebral palsy (MACS level I-III). It is a further development of the Assisting Hand Assessment.  Scoring is done by observation of bimanual play using toys/games from the AHA test kit. 

The BoHA intends to measure the degree and quality of goal directed actions performed with each hand separately as well as with both hands together. The outcome of the test renders a separate score for each hand, illustrating possible asymmetric hand use as well as a measure of general upper limb ability.  A 4-point rating scale is used to score 16 items (11 unimanual, 5 bimanual). 


Internal scale validity was investigated by use of Rasch measurement model analysis and found to be satisfactory.  Ref: Elvrum AK, Zethraeus BM, Vik T, Krumlinde-Sundholm L, (2017) Development and validation of the Both Hands Assessment for children with bilateral cerebral palsy.  Phys Occup Ther Pediatr. 2017 May 3:1-14. 

Course Information

The course consists of 2 stages

  • 2.5 days of ‘workshops’ covering: underpinning constructs of the BoHA, test administration, scoring of infants from video recordings 
  • Post-workshop certification process where participants are required to achieve satisfactory scoring of a number of children, some of which are provided by videos, and two from self-produced BoHA play sessions.


Course objectives

On completion of the course participants will be able to:

  1. Demonstrate the set-up, conduct and video record a BoHA session and produce reliable scores according to the criteria in the manual.
  2. Verbalize the concept and construct of the test and its psychometric properties
  3. Interpret and communicate the outcome of the test. 


Ann-Kristin Elvrum (Reg OT, PhD), St. Olavs Hospital, NTNU, Trondheim, Norway.

Ann-Kristin is specialized in children's health and has a PhD in clinical medicine. In her postdoc project she conducts an early intervention study for children at high risk for developing cerebral palsy, with special focus on hand function, mobility and communication. 

Britt-Marie Zethraeus (Reg OT, MSc), Karolinska Institutet, Stockholm.

Britt-Marie has been working with children with all kinds of disabilities in the rehabilitation services in Stockholm for many years.  Currently she is working as a research assistant for Prof. Ann-Christine Eliasson.  Britt-Marie and Ann-Kristin collaborated with Prof. Lena Krumlinde-Sundholm in the development and validation of the BoHA. 

Study hours

Direct contact taught course: 18 hours

Certification process: 12 hours, ideally to be completed within 3 months of the course

AHA test case

AHA test materials can be obtained through Handfast Inc by emailing the team through the website  

Dates, costs and location

If there is a minimum of 20 participants the course will run at Bobath Scotland Cerebral Palsy Therapy Centre in Glasgow Scotland from 23-25 October 2019.

The cost is £500. This includes tea/coffee, course manual, score forms, downloadable files and distance teaching/support during the certification process. 

The venue address is: Bobath Scotland Cerebral Palsy Therapy Centre, 10 High Craighall Road, Glasgow, Scotland, G4 9UD. 

About the application process

This course is open to Occupational Therapists and Physiotherapists who work with children who have cerebral palsy. 

To apply, please complete the booking form and return to

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