Patient Reported Impact of Spasticity Measure (PRISM)
Measure: Patient Reported Impact of Spasticity Measure (PRISM) .
Description: A health-related (QoL) measure of subjective well-being that assesses the impact of spinal cord injury (SCI)-related spasticity on quality of life (QoL) from the patient’s perspective and has seven sub-scales, which include: ‘Social Avoidance/Anxiety’, ‘Psychological Agitation’, ‘Daily Activities’, ‘Need for Assistance/Positioning’, ‘Need for Intervention’, and ‘Social Embarrassment’. It accounts for both the negative and positive aspects associated with spasticity.
Format: 41 items ranked on a 5-point scale:
0 = Never true for me
1 = Rarely true for me
3 = Often true for me
4 = Very often true for me
Scoring: Seven subjective well-being scales are embedded into the PRISM, where items are averaged and multiplied.
Administration and Burden: Interviewer-administered; Self-administered. Approximately 10 minutes.
Psychometrics for SCI: The PRISM demonstrates good reliability in terms of internal consistency (Cronbach’s α =.74. to 96) and reproducibility (Intra-class correlation co-efficient = .82 to .91). The scale appears to have good content validity. Further work required to establish psychometric properties for the SCI population, especially with respect to validity (construct, discriminative, and convergent).
QoL Concept: The PRISM is a Health-Related QoL measure of Subjective Well-Being related to spasticity, which corresponds to Boxes C (achievements) and E (subjective evaluations and reactions) of Dijker’s Model.
Permissions/Where to Obtain: Copyrighted; The PRISM may be obtained at the University of Washington Center on Outcomes Research in Rehabilitation at: http://uwcorr.washington.edu/prism.htm
**CLICK ON THE LISTED SECONDARY HEALTH CONDITIONS ON THE RIGHT TO READ HOW THE PRISM HAS BEEN USED WITH A PARTICULAR CONDITION**
- Cook KF, Teal CR, Engebretson JC, Hart KA, Mahoney JS, Robinson-Whelen S, Sherwood AM. Development and validation of Patient Reported Impact of Spasticity Measure (PRISM). J Rehabil Res Dev. 2007;44:363-71.