Face and Content validity of Persian version of Parkinson Fatigue Scale (PFS-16) in people with Parkinson’s disease

Document Type : Original article

Authors

1 Students` Research Office, MSc Student in Occupational Therapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran

2 Assistant Professor, PhD in Occupational Therapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran

3 Lecturer, MSc in occupational Therapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran

4 Phd Student in Neurocognition, MSc in Occupational Therapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran

5 PhD in Biostatistics, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Abstract

Background and Aim: Parkinson’s disease (PD) is the second common neuro-degenerative disorder after Alzheimer’s disease (AD). Tremor at rest, rigidity, bradykinesia, and postural control impairments are the four main diagnostic symptoms of PD. However, people with PD reported several non-motor symptoms. Among non-motor symptoms, fatigue is the most widespread with the prevalence rates of 40-65 percent that can have impacts on the quality of life of these people. The purpose of the present study was to translate and evaluate face and content validity of Parkinson Fatigue Scale (PFS-16) in patients with Parkinson's.
Materials and Method: Translation of this scale was done in two phases according to international quality of life assessment (IQOLA). Then, face validity was checked by 15 patients with Parkinson's disease and content validity was evaluated by 15 occupational therapists. To determine the content validity ratio (CVR) and content validity index (CVI), Lawshe’s method was used.
Results: In the translation phase, only one question was changed because of conceptual problem. Face validity was very high for this measure. According to Lawshe, content validity ratio (CVR) and content validity index (CVI) were in the acceptable range.
Conclusion: Persian version of Parkinson Fatigue Scale (PFS-16) has high face and content validity which is good for assessing fatigue in people with Parkinson's.
 
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The Scientific Journal of Rehabilitation Medicine
Volume 5, Issue 1
March and April 2016
Pages 85-92

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History

  • Receive Date: 12 July 2015
  • Revise Date: 02 August 2015
  • Accept Date: 14 October 2015
  • First Publish Date: 20 March 2016

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