Related Experiment Video
Updated: Jun 21, 2026
The Multiple Sclerosis Performance Test (MSPT): An iPad-Based Disability Assessment Tool
Published on: June 30, 2014
A pilot study of a comparison between a patient scored numeric rating scale and clinician scored measures of
1Walkergate Park International Centre for Neurorehabilitation, Newcastle upon Tyne, UK. Khalid.anwar@stees.nhs.uk
Objective:
To assess the validity and reliability of a Numeric Rating Scale (NRS) for the measurement of spasticity in multiple sclerosis.
Design:
Longitudinal study with multiple comparators over two clinic visits.
Setting:
Rehabilitation Centre in the North East of England, UK.
Subjects:
A total of thirty-five patients, with a diagnosis of multiple sclerosis (MS) that were attending a rehabilitation clinic.
Results:
The test/re-test reliability of the NRS showed there was a high correlation between the two visits (r = 0.672). Construct validity was assessed by examining the relationship between the mean spasticity NRS and each of the other spasticity assessment tools. There was a statistically significant correlation between subject's mean NRS diary scores and the Modified Ashworth Scale scores at both visits (Visit 1, r = 0.459, p = 0.0056; Visit 2, r = 0.446, p = 0.0106). There was a moderate, statistically significant correlation between the mean NRS diary scores and the Tardieu Scale (Visit 1, r = 0.429, p = 0.0113; Visit 2, r = 0.407, p = 0.0209).
Conclusions:
The spasticity NRS has been shown to be a valid and reliable tool in the assessment of spasticity with a moderate to high level of correlation with other clinician rated instruments used to assess spasticity.
