Disability Assessment Scale (DAS)

 

DAS Evaluation Summary

  What does the tool measure? Functional disability in patients with spasticity.
  What types of clients can the tool be used for? The Disability Assessment Scale can be used with, but is not limited to clients with post-strokespasticity.
  Is this a screening or assessment tool? Assessment
Time to administer Not reported.
  Versions None
Other Languages None
Measurement Properties
  Reliability

Intra-rater:
One study examined the intra-rater reliability of the DAS in patients with spasticity following stroke and found adequate to excellent intra-rater reliability.

Inter-rater:
One study examined the inter-rater reliability of the DAS in patients with spasticity following stroke and found adequate to excellent inter-rater reliability.

  Validity No studies have examined the validity of the DAS.
  Floor/Ceiling Effects No studies have examined the floor/ceiling effects of the DAS.
  Does the tool detect change in patients? The responsiveness of the DAS has not formally been studied, however the DAS has been used to measure change in spasiticity in a clinical trial with patients with stroke.
  Acceptability The DAS is one of the only tools available for evaluation of upper limb functional disability in patients with spasticity following stroke.
Feasibility There is a lack of information about the DAS, affecting ease of administration.
How to obtain the tool? See: Brashear, A., Zafonte, R., Corcoran, M., Galvez-Jimenez, N., Gracies, J-M., Gordon, M.F., et al. (2002). Inter- and Intrarater reliability of the Ashworth Scale and the Disability Assessment Scale in patients with upper-limb poststroke spasticity. Archives of Physical Medicine Rehabilitation, 83, 1349-1351.

* Initially developed for a traumatic-brain injured population, the psychometric properties of the tool with this population are described in the administration guide of the tool