Cross-Cultural Validity, Reliability, and Psychometric Properties of the Persian Version of the Scales for Outcomes in Parkinson’s Disease-Psychosocial Questionnaire

Objectives. Considering the influence of different motor and nonmotor features of Parkinson’s disease (PD), it is important to evaluate the psychosocial functioning of the patients. For this purpose, the scales for outcomes in Parkinson’s disease-psychosocial questionnaire (SCOPA-PS) has been previo...

Full description

Saved in:
Bibliographic Details
Main Authors: Seyed-Mohammad Fereshtehnejad, Farzaneh Farhadi, Hasti Hadizadeh, Gholam Ali Shahidi, Ahmad Delbari, Johan Lökk
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Neurology Research International
Online Access:http://dx.doi.org/10.1155/2014/260684
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832561079012556800
author Seyed-Mohammad Fereshtehnejad
Farzaneh Farhadi
Hasti Hadizadeh
Gholam Ali Shahidi
Ahmad Delbari
Johan Lökk
author_facet Seyed-Mohammad Fereshtehnejad
Farzaneh Farhadi
Hasti Hadizadeh
Gholam Ali Shahidi
Ahmad Delbari
Johan Lökk
author_sort Seyed-Mohammad Fereshtehnejad
collection DOAJ
description Objectives. Considering the influence of different motor and nonmotor features of Parkinson’s disease (PD), it is important to evaluate the psychosocial functioning of the patients. For this purpose, the scales for outcomes in Parkinson’s disease-psychosocial questionnaire (SCOPA-PS) has been previously designed. The aim of our study was to assess the cross-cultural validation and psychometric properties of the Persian version of the SCOPA-PS. Methods. One hundred and ten nondemented idiopathic Parkinson’s disease (IPD) patients were consecutively recruited from an outpatient referral movement disorder clinic. Eligible patients filled up a number of questionnaires including the Persian version of SCOPA-PS during the face-to-face interview session and clinical examination to measure disease severity, nonmotor psychiatric symptoms, and health-related quality of life (HRQoL). Results. The highest and lowest correlation coefficients of internal consistency were reported for item 7 on “asking for help” (r=0.765) and item 5 on “sexual problems” (r=0.553). Cronbach’s alpha reliability coefficient of the entire scale was 0.87 (95% CI: 0.83–0.90). The Hoehn and Yahr stage (r=0.34, P<0.001), Schwab and England ADL scale (r=-0.55, P<0.001), anxiety (r=0.64, P<0.001), depression (r=0.71, P<0.001), and fatigue (r=0.35, P<0.001) were significantly correlated with the total score of the SCOPA-PS questionnaire. Conclusions. The Persian version of SCOPA-PS is a highly reliable and valid scale to measure psychosocial functioning in IPD patients with different sex, age-group, and educational level, which could be applied in future researches. Disease severity scales, depression, anxiety, fatigue, and different domains of HRQoL were all associated with psychosocial functioning in PD patients.
format Article
id doaj-art-2d3783086a6346a0a8077eca36d593ec
institution Kabale University
issn 2090-1852
2090-1860
language English
publishDate 2014-01-01
publisher Wiley
record_format Article
series Neurology Research International
spelling doaj-art-2d3783086a6346a0a8077eca36d593ec2025-02-03T01:25:57ZengWileyNeurology Research International2090-18522090-18602014-01-01201410.1155/2014/260684260684Cross-Cultural Validity, Reliability, and Psychometric Properties of the Persian Version of the Scales for Outcomes in Parkinson’s Disease-Psychosocial QuestionnaireSeyed-Mohammad Fereshtehnejad0Farzaneh Farhadi1Hasti Hadizadeh2Gholam Ali Shahidi3Ahmad Delbari4Johan Lökk5Division of Clinical Geriatrics, Department of Neurobiology, Care Sciences, and Society (NVS), Karolinska Institutet, 14186 Stockholm, SwedenMedical Student Research Committee (MSRC), Faculty of Medicine, Iran University of Medical Sciences, Tehran 14496-14535, IranMedical Student Research Committee (MSRC), Faculty of Medicine, Iran University of Medical Sciences, Tehran 14496-14535, IranMovement Disorders Clinic, Department of Neurology, Faculty of Medicine, Iran University of Medical Sciences, Tehran 14496-14535, IranDivision of Clinical Geriatrics, Department of Neurobiology, Care Sciences, and Society (NVS), Karolinska Institutet, 14186 Stockholm, SwedenDivision of Clinical Geriatrics, Department of Neurobiology, Care Sciences, and Society (NVS), Karolinska Institutet, 14186 Stockholm, SwedenObjectives. Considering the influence of different motor and nonmotor features of Parkinson’s disease (PD), it is important to evaluate the psychosocial functioning of the patients. For this purpose, the scales for outcomes in Parkinson’s disease-psychosocial questionnaire (SCOPA-PS) has been previously designed. The aim of our study was to assess the cross-cultural validation and psychometric properties of the Persian version of the SCOPA-PS. Methods. One hundred and ten nondemented idiopathic Parkinson’s disease (IPD) patients were consecutively recruited from an outpatient referral movement disorder clinic. Eligible patients filled up a number of questionnaires including the Persian version of SCOPA-PS during the face-to-face interview session and clinical examination to measure disease severity, nonmotor psychiatric symptoms, and health-related quality of life (HRQoL). Results. The highest and lowest correlation coefficients of internal consistency were reported for item 7 on “asking for help” (r=0.765) and item 5 on “sexual problems” (r=0.553). Cronbach’s alpha reliability coefficient of the entire scale was 0.87 (95% CI: 0.83–0.90). The Hoehn and Yahr stage (r=0.34, P<0.001), Schwab and England ADL scale (r=-0.55, P<0.001), anxiety (r=0.64, P<0.001), depression (r=0.71, P<0.001), and fatigue (r=0.35, P<0.001) were significantly correlated with the total score of the SCOPA-PS questionnaire. Conclusions. The Persian version of SCOPA-PS is a highly reliable and valid scale to measure psychosocial functioning in IPD patients with different sex, age-group, and educational level, which could be applied in future researches. Disease severity scales, depression, anxiety, fatigue, and different domains of HRQoL were all associated with psychosocial functioning in PD patients.http://dx.doi.org/10.1155/2014/260684
spellingShingle Seyed-Mohammad Fereshtehnejad
Farzaneh Farhadi
Hasti Hadizadeh
Gholam Ali Shahidi
Ahmad Delbari
Johan Lökk
Cross-Cultural Validity, Reliability, and Psychometric Properties of the Persian Version of the Scales for Outcomes in Parkinson’s Disease-Psychosocial Questionnaire
Neurology Research International
title Cross-Cultural Validity, Reliability, and Psychometric Properties of the Persian Version of the Scales for Outcomes in Parkinson’s Disease-Psychosocial Questionnaire
title_full Cross-Cultural Validity, Reliability, and Psychometric Properties of the Persian Version of the Scales for Outcomes in Parkinson’s Disease-Psychosocial Questionnaire
title_fullStr Cross-Cultural Validity, Reliability, and Psychometric Properties of the Persian Version of the Scales for Outcomes in Parkinson’s Disease-Psychosocial Questionnaire
title_full_unstemmed Cross-Cultural Validity, Reliability, and Psychometric Properties of the Persian Version of the Scales for Outcomes in Parkinson’s Disease-Psychosocial Questionnaire
title_short Cross-Cultural Validity, Reliability, and Psychometric Properties of the Persian Version of the Scales for Outcomes in Parkinson’s Disease-Psychosocial Questionnaire
title_sort cross cultural validity reliability and psychometric properties of the persian version of the scales for outcomes in parkinson s disease psychosocial questionnaire
url http://dx.doi.org/10.1155/2014/260684
work_keys_str_mv AT seyedmohammadfereshtehnejad crossculturalvalidityreliabilityandpsychometricpropertiesofthepersianversionofthescalesforoutcomesinparkinsonsdiseasepsychosocialquestionnaire
AT farzanehfarhadi crossculturalvalidityreliabilityandpsychometricpropertiesofthepersianversionofthescalesforoutcomesinparkinsonsdiseasepsychosocialquestionnaire
AT hastihadizadeh crossculturalvalidityreliabilityandpsychometricpropertiesofthepersianversionofthescalesforoutcomesinparkinsonsdiseasepsychosocialquestionnaire
AT gholamalishahidi crossculturalvalidityreliabilityandpsychometricpropertiesofthepersianversionofthescalesforoutcomesinparkinsonsdiseasepsychosocialquestionnaire
AT ahmaddelbari crossculturalvalidityreliabilityandpsychometricpropertiesofthepersianversionofthescalesforoutcomesinparkinsonsdiseasepsychosocialquestionnaire
AT johanlokk crossculturalvalidityreliabilityandpsychometricpropertiesofthepersianversionofthescalesforoutcomesinparkinsonsdiseasepsychosocialquestionnaire