scholarly journals Validity and Reliability of Short-Form McGill Pain Questionnaire-2 (SF-MPQ-2) in Iranian People with Parkinson’s Disease

2020 ◽  
Vol 2020 ◽  
pp. 1-7 ◽  
Author(s):  
Maryam Mehdizadeh ◽  
Seyed-Mohammad Fereshtehnejad ◽  
Sepide Goudarzi ◽  
Ainaz Moshtagh ◽  
Farzaneh Dehghanian Nasrabadi ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Convergent Validity ◽  
Short Form ◽  
Intraclass Correlation ◽  
Mcgill Pain Questionnaire ◽  
Validity And Reliability ◽  
Cronbach’S Alpha ◽  
Pain Questionnaire ◽  
Cronbach's Alpha

Purpose. Pain is one of the nonmotor symptoms of Parkinson’s disease (PD) that, in order to be better managed, requires to be evaluated. Evaluations are done using pain assessment scales such as the Short-Form McGill Pain Questionnaire-2 (SF-MPQ-2). The goal of this study was to assess the psychometric properties of SF-MPQ-2 to measure pain in people with PD. Methods. Four hundred and twenty-eight PD patients with a mean (SD) age of 60.11 (11.44) years were included. Accessibility was measured through floor and ceiling effects. Dimensionality was estimated by exploratory factor analysis. The association between SF-MPQ-2 and other scales such as Neuropathic Pain Symptom Inventory, Douleur Neuropathic 4, Brief Pain Inventory, King’s Pain Parkinson’s Disease Scale, and Visual Analog Scale-Pain was considered to calculate convergent validity. Internal consistency and test-retest reliability were assessed by Cronbach’s alpha and intraclass correlation coefficient (ICC), respectively. Results. A noticeable floor effect was found. Dimensionality results indicated four factors for this scale. A strong relationship was found between the SF-MPQ-2 total score and other scales (r = 0.55 to 0.85). In reliability analysis, Cronbach’s alpha and ICC were 0.93 and 0.94 for SF-MPQ-2, respectively. Conclusion. The results of this study showed that SF-MPQ-2 has adequate validity and reliability to measure pain in people with Parkinson’s disease.

scholarly journals Translation and Cross-Cultural Adaptation of the Persian Version of Minnesota Living With Heart Failure Questionnaire (MLHFQ)

2020 ◽  
Author(s):  
Behrouz Attarbashi Moghadam ◽  
Hasan Tamartash ◽  
Sara Fereydunnia ◽  
Mahdieh Ravand
Keyword(s):  
Heart Failure ◽  
Correlation Coefficient ◽  
Short Form ◽  
Intraclass Correlation ◽  
Validity And Reliability ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Persian Version ◽  
Sf 36 ◽  
Heart Failure Questionnaire

The Minnesota Living with Heart Failure Questionnaire (MLHFQ) has been developed to measure health-related quality of life (HRQoL) status of Heart Failure (HF) patients. The aim of this study was to translate MLHFQ into the Persian version and assess the validity and reliability of the translated version. We used a forward-backward procedure for translation. In a cross-sectional study, 105 HF patients and 50 healthy subjects were selected to assess the reliability and construct validity of the instrument. The face and content validity were used to assess the questionnaire validity. Validity was examined on the HF patients group, using the Persian version of the Short form-36 health survey (SF-36) Questionnaire. In order to assess the questionnaire’s reliability, the Intraclass correlation coefficient (ICC) and Cronbach’s alpha were calculated. Test-retest reliability was examined by re-administering the MLHFQ after 2 weeks. Test-retest results demonstrated that the Persian version has excellent reliability (ICC for all 2 domains were higher than 0.91, P≤0.000). Internal consistency for Physical domain (PD), emotional domain (ED) and total scores using Cronbach’s alpha were 0.90, 0.84 and 0.92, respectively. ICC for PD, ED and total scores were 0.95, 0.94, and 0.97, respectively. Good and very good Pearson's Correlation Coefficient was seen between MLHFQ and SF-36 (r= -0.47 to -0.775, P≤0.000 for PD; r= -0.47 to -0.65, P≤0.000 for ED). The Persian version of the MLHFQ had satisfactory reliability and validity for assessing HRQoL status of Iranian HF patients. © 2019 Tehran University of Medical Sciences. All rights reserved. Acta Med Iran 2019;57(7):435-441.

scholarly journals Reliability and construct validity of the Online Cognition Scale in the Portuguese (Brazil) version (OCS-BR)

2017 ◽  
Vol 66 (1) ◽  
pp. 19-28
Author(s):  
Hugo Rafael de Souza e Silva ◽  
Kelsy Catherina Nema Areco ◽  
Paulo Bandiera-Paiva ◽  
Pauliana Valéria Machado Galvão ◽  
Analia Nusya de Medeiros Garcia ◽  
...  
Keyword(s):  
Construct Validity ◽  
Convergent Validity ◽  
Intraclass Correlation ◽  
Sufficient Evidence ◽  
Validity And Reliability ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Demographic Questionnaire ◽  
Confirmatory Factor ◽  
Cognition Scale

ABSTRACT Objective To evaluate construct validity and reliability of the Portuguese (Brazil) version of Online Cognition Scale (OCS-BR). Methods Portuguese (Brazil) versions of Online Cognition Scale (OCS), of Internet Addiction Test (IAT) and socio demographic questionnaire was applied to a sample (n = 359) of health university students. Construct validity evidence was verified through the factorial and convergent validity by Confirmatory Factor Analysis (CFA) and internal consistency and stability analysis through Cronbach’s alpha and intraclass correlation coefficient (ICC) respectively. Discriminative power of items were analyzed using item-total correlation and point biserial correlation. Results OCS-BR presented satisfactory evidence of construct validity. The instrument showed Cronbach’s alpha of 0.91 and ICC of 0.91. Conclusion Portuguese (Brazil) version of OCS shows items consistently gatherd to measure the Problematic Internet Use (PIU) construct, it is considered s stable instrument in time and with sufficient evidence of construct validity.

scholarly journals Parkinson’s Disease Gravity Index: A Method by means of Optimal Scaling

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Marcos Serrano-Dueñas ◽  
Luis Masabanda ◽  
Maria-Rosario Luquin
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Standard Error ◽  
Convergent Validity ◽  
Optimal Scaling ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Interval Variables ◽  
Standard Error Of Measurement ◽  
Error Of Measurement

Objective. This study has been designed with the aim of using optimal scaling to perform the allocation of scores and to be able to construct an indicator of the Parkinson’s Disease Gravity Index. Scores were assigned to interrelated dimensions that share information about the patient’s situation, to have an objective, holistic tool which integrates scores so that doctors can have a comprehensive idea of the patient’s situation. Patients and Methods. 120 consecutive patients with Parkinson’s diagnosis were chosen according to the United Kingdom Parkinson’s Disease Society Brain Bank criteria. Subsequently, all the chosen dimensions were transformed into interval variables for which the formula proposed by Sturges was used. Once the dimensions were transformed into interval variables, optimal scaling was carried out. Subsequently, the following attributes were analyzed: quality and acceptability of the data; reliability: internal consistency, reliability index, Cronbach’s alpha, and standard error of measurement; finally, validity: convergent validity and validity for known groups. Results. There were no missing data. An appropriate Cronbach’s alpha value of 0.71 was gathered, and all items were found to be pertinent to the scale. The item homogeneity index was 0.36. Precision evaluated with the standard error of measurement was 7.8. The Parkinson’s Disease Gravity Index discriminant validity (validity for known groups), assessed among the different stages of Hoehn and Yahr scale by the Kruskal–Wallis test, showed major significance (X2 = 32.7, p ≤ 0.001 ). Conclusions. The Parkinson’s Disease Gravity Index has shown adequate metric properties.

scholarly journals The Persian short form Aging Perceptions Questionnaire (APQ-P): A validation study

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Mojgan Miremadi ◽  
Razieh Bandari ◽  
Majideh Heravi-Karimooi ◽  
Nahid Rejeh ◽  
Hamid Sharif Nia ◽  
...  
Keyword(s):  
Population Aging ◽  
Short Form ◽  
Intraclass Correlation ◽  
Face Validity ◽  
Validity And Reliability ◽  
Cronbach’S Alpha ◽  
Confirmatory Factor Analyses ◽  
Cronbach's Alpha ◽  
Persian Version ◽  
Backward Procedure

Abstract Background Population aging is an important phenomenon for many countries worldwide. Considering the growing trend of aging population in Iran, it is very important to consider beliefs and perceptions of old people about aging. The Aging Perception Questionnaire (APQ) is one of the most common instruments that used to measure aging comprehension. The present study was a methodological inquiry that aimed to examine validity and reliability of the Persian version of the Aging Perception Questionnaire (APQ). Methods Forward-backward procedure was used for translation. Content validity and face validity were evaluated qualitatively. In order to evaluate construct validity a cross section study was conducted and both exploratory and confirmatory factor analyses were performed. In order to determine reliability, internal consistency (the Cronbach’s alpha) and stability (Intraclass Correlation Coefficient -ICC) were estimated. Results A total of 500 elderly people attending the community centers in Tehran, Iran were entered in other study and completed the Persian version of the questionnaire. Most elderly were female (52.8%).The mean age of participants was 68.33 (SD ± 6.10) years. The results obtained from exploratory factor analysis showed a four-factors solution (consequences negative, emotional representation, control positive and consequences positive) that jointly explained 52.8% of the total variance observed. In addition the confirmatory factory analysis showed a good fit for the data. Finally, the Cronbach’s alpha coefficient of 0.83 ranging from 0.80 to 0.87 was obtained for the whole scale and the subscales. The ICC value of 0.96 ranging from 0.90 to 0.98 was found for the whole scale and the subscales. Conclusion The results indicated that the Persian version of APQ is valid and can be used to measure aging perception in Iran.

scholarly journals Farsi Translation and Cultural Adaptation of Psychosocial Impact of Dental Esthetics Questionnaire and Evaluation of its Validity and Reproducibility

2020 ◽  
Vol 8 (D) ◽  
pp. 124-129
Author(s):  
Amin Golshah ◽  
Haddis Esfandeyari ◽  
Nafiseh Nikkerdar ◽  
Mohammad Moslem Imani ◽  
Mohsen Safaei ◽  
...  
Keyword(s):  
Cultural Adaptation ◽  
Convergent Validity ◽  
Orthodontic Treatment ◽  
Intraclass Correlation ◽  
Psychosocial Impact ◽  
Face Validity ◽  
Validity And Reliability ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Dental Esthetics

AIMS: This study aimed to translate the psychosocial impact of dental esthetics questionnaire (PIDAQ) to Farsi and assess its cultural adaptation, validity, and reproducibility. MATERIALS AND METHODS: The PIDAQ was translated to Farsi by experts fluent in Farsi and English. It was then back-translated to English by another expert blinded to the original version. The translated version was administered among 40 patients to assess its face validity and content validity. Final version of the questionnaire along with the index of orthodontic treatment need (IOTN) and the perception of occlusion scale (POS) was administered among 400 patients (224 females, 176 males) to assess their need for orthodontic treatment. To assess its validity, the mean score of PIDAQ was evaluated in different ranges of IOTN-esthetic component (IOTN-AC), IOTN-dental health component (DHC), and POS. To assess its convergent validity, the PIDAQ, IOTN-AC, IOTN-DHC, and POS scores were evaluated. Its construct validity was evaluated by confirmatory and exploratory factor analysis. Its internal consistency was evaluated using Cronbach’s alpha and the split-half method. Its test-retest reliability was evaluated by calculating the intraclass correlation coefficient (ICC). RESULTS: The Cronbach’s alpha was found to be 0.900–0.945 for the questionnaire domains, which showed good reliability. The ICC for the four questionnaire domains was 0.926, which was excellent. IOTN-DHC, IOTN-AC, and POS had significant correlations with the questionnaire domains. CONCLUSIONS: The Farsi version of PIDAQ has optimal validity and reliability and can be used for assessment of the dental esthetics-related quality of life of Iranian young adults.

scholarly journals Evaluation of the validity and reliability of the Persian version of the Eurocest Neurotoxic Symptoms Questionnaire

2021 ◽  
Author(s):  
M Firoozeh ◽  
A Kavousi ◽  
S Hassanzadeh
Keyword(s):  
Correlation Coefficient ◽  
Organic Solvents ◽  
Content Validity ◽  
Convergent Validity ◽  
Pearson Correlation ◽  
Intraclass Correlation ◽  
Validity And Reliability ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Persian Version

Introduction: Modified Euro Quest questionnaire to assess neurological and psychiatric effects caused by exposure to organic solvents is used. This study investigates the validity, reliability, and usability of the modified Euro Quest questionnaire in Iran. Materials and Methods: This cross-sectional descriptive study was conducted on 206 workers of color and textile industries. Modified Euro Quest questionnaire was translated into Persian by using the forward-backward translation standard method. To evaluate the content validity, convergent validity, internal consistency, and reliability of the questionnaire were used the index CVI, Pearson correlation coefficient, Cronbach's alpha, and test-retest. The convergent validity was compared, results of the questionnaire, with results of mini-mental state examination (MMSE) and Multidimensional Fatigue Inventory (MFI). Results: The relationship between the modified Euroquest questionnaire was compare with the MMSE test and the MFI's questionnaire, Pearson correlation coefficients, and the results showed in order - 0.86 and 0.65, which represents a significant inverse correlation between this questionnaire with MMSE test(p>0.001) And a moderate correlation with the MFI's questionnaire(p>0.001). Content validity index (CVI) and intraclass correlation coefficient (ICC) were obtained in order amounts of ≤0.79 and 0.92, which was acceptable. The final questionnaire, Cronbach's alpha coefficient, was calculated (α =0.84).  Conclusion: The modified Euroquest Persian version is a valuable tool to assess the neurological and psychological effects caused by exposure to organic solvents in Iranian workers. 

scholarly journals Validity and Reliability of the Persian Version of Parkinson’s Disease Sleep Scale-2

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Mohammad Taghi Joghataei ◽  
Seyed-Mohammad Fereshtehnejad ◽  
Maryam Mehdizadeh ◽  
Sepideh Goudarzi ◽  
Sayed Amir Hasan Habibi ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Internal Consistency ◽  
Convergent Validity ◽  
Intraclass Correlation ◽  
Depression Scale ◽  
Validity And Reliability ◽  
Retest Reliability ◽  
Persian Version ◽  
Test Retest Reliability

Objective. Sleep problems are nonmotor symptoms in Parkinson’s disease that should be carefully evaluated for better management and treatment. Parkinson’s Disease Sleep Scale (PDSS-2) is one of the most reliable tools for measuring sleep difficulties in people with Parkinson’s disease. This study investigated the psychometric properties of the Persian version of PDSS-2. Methods. Four hundred and fifty-six people with Parkinson’s disease with a mean age ±standard deviation of 60.7 ± 11.3 years were engaged in this study. Acceptability was assessed by floor and ceiling effects. Dimensionality was measured by exploratory factor analysis. The convergent validity of PDSS-2 with the Hospital Anxiety and Depression Scale (HADS) was assessed. Internal consistency and test-retest reliability were assessed with Cronbach’s alpha and intraclass correlation coefficient (ICC), respectively. Results. No noticeable ceiling and floor effect was detected. The dimensionality analysis showed three factors. A high correlation was obtained between PDSS-2 and HADS (anxiety subscale). Excellent internal consistency with α = 0.94, and good test-retest reliability with ICC = 0.89 were obtained. Conclusion. This study showed that the Persian version of Parkinson’s Disease Sleep Scale has acceptable validity and reliability for measuring sleep disturbances in people with Parkinson’s disease.

Psychometric investigation of the affiliate stigma scale in Mexican Parkinson’s disease caregivers: Development of a short form

2021 ◽  
pp. 1-11
Author(s):  
Mickeal Pugh ◽  
Paul B. Perrin ◽  
Jack D. Watson ◽  
Duygu Kuzu ◽  
Carmen Tyler ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Factor Structure ◽  
Convergent Validity ◽  
Short Form ◽  
Factor Analyses ◽  
Confirmatory Factor Analyses ◽  
Stigma Scale ◽  
Affiliate Stigma ◽  
Exploratory Factor Analyses

BACKGROUND: Parkinson’s disease (PD) caregivers, particularly in Latin America, may experience high levels of affiliate stigma due to their association with a person having a disability. The most common measure used of this construct in the literature, the Affiliate Stigma Scale, was validated using non-standard and questionable methods. OBJECTIVE: The purpose of this study was to investigate the factor structure and psychometric properties of the Spanish version of the Affiliate Stigma Scale with PD caregivers in Mexico using more widely accepted psychometric approaches including confirmatory and exploratory factor analyses (confirmatory factor analyses (CFAs) and exploratory factor analyses (EFAs)). METHODS: A sample of 148 PD caregivers from Mexico completed this measure, as well as indices of caregiver burden and anxiety. RESULTS: Initial CFAs revealed that the data did not fit either the originally proposed one-factor or three-factor structures. An EFA was then conducted which was unable to discern any factor structure. Upon instituting a stepwise removal alpha-if-item-deleted process, a 5-item Affiliate Stigma Scale Spanish Short Form was retained with an adequate Cronbach’s alpha, good convergent validity, and a Short Form CFA generally indicating adequate fit. CONCLUSIONS: The new Spanish Affiliate Stigma Scale Short Form holds promise for more appropriately measuring affiliate stigma likely in general but particularly in Spanish and among PD caregivers. The Short Form can assist not only in assessing levels of caregiver affiliate stigma, but in creating novel interventions to help support caregivers and decrease stigma.

scholarly journals Reliability and Validity of 39-Item Parkinson’s Disease Questionnaire and Parkinson’s Disease Quality of Life Questionnaire

2017 ◽  
Vol 30 (5) ◽  
pp. 395 ◽  
Author(s):  
Joana Jesus-Ribeiro ◽  
Elsa Vieira ◽  
Pedro Ferreira ◽  
Cristina Januário ◽  
António Freire
Keyword(s):  
Quality Of Life ◽  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Life Questionnaire ◽  
Cronbach’S Alpha ◽  
Quality Of Life Questionnaire ◽  
Cronbach's Alpha ◽  
Disease Questionnaire ◽  
Parkinson’S Disease Questionnaire

Introduction: Parkinson’s disease has a significant impact in quality of life, which can be assessed with 39-item Parkinson’s Disease Questionnaire and Parkinson’s Disease Quality of Life Questionnaire. This study aimed to evaluate the reliability and validity of these scales in Portuguese patients.Material and Methods: Reliability was assessed through internal consistency (Cronbach’s alpha) and reproducibility (intraclass correlation coefficient). Regarding construct validity, we performed one-way analysis of variance across different groups according to modified Hoehn and Yahr scale. For criterion validity, we compared both scales with each other and with the Short Form 36-item Health Survey.Results: In a total of 100 patients with Parkinson’s disease, Cronbach’s alpha ranged for 39-item Parkinson’s Disease Questionnaire between 0.66 - 0.98, and for Parkinson’s Disease Quality of Life Questionnaire, between 0.78 - 0.98. Intraclass correlation coefficient for 39-item Parkinson’s Disease Questionnaire ranged between 0.49 - 0.96, and for Parkinson’s Disease Quality of Life Questionnaire, ranged between 0.65 - 0.96. Both scales showed, in general, capacity to discriminate differences among patients in the different stages of disease. The scales presented moderate to strong magnitude correlations with some Short Form 36-item Health Survey domains.Discussion: Cronbach’s alpha coefficients for most domains were satisfactory. Overall, it has been demonstrated good reproducibility, as well as construct and criterion validity.Conclusion: The Portuguese versions of both scales showed to be valid and reliable.

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