scholarly journals Validation of the Scale Intended for the Assessment of the Quality of Life of Persons With Lumbal Syndrome // Validacija skale namenjene proceni kvaliteta života osoba sa lumbalnim sindromom

2018 ◽  
Vol 15 (1) ◽  
Author(s):  
Milan Nešić ◽  
Romana Romanov ◽  
Tatjana Jezdimirović ◽  
Josip Lepeš ◽  
Slobodan Andrašić
Keyword(s):  
Quality Of Life ◽  
Social Relations ◽  
Mean Value ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Lumbar Syndrome ◽  
Level Of Significance ◽  
High Degree

In order to determine the metric characteristics of the scale intended for the assessment of the quality of life of persons with lumbar syndrome (PQL-LS) on a sample of 202 subjects (M = 93; F = 109), three procedures for checking its metric characteristics were applied: factor analysis (Principal Components Analysis) with the Direct Oblimin method, in order to identify the latent structure of the perception of the quality of life of the respondents; Scale Reliability Analysis based on Cronbach’s alpha coefficient; and a validation check based on the coefficient of internal correlation of the scale (Spearman’s correlation of rank - rho). The results show that the scale has good metric characteristics and that it has a multi-item character (twenty-seven indicators). The internal accordance of the scale is in the high reference range of the Cronbach’s alpha coefficient (0.947). The values of correlation coefficient of subscale scores: physical health, mental health, social relations and environment show a high degree of correlation with the overall mean value of the entire scale, which confirms the validity of the analyzed domains (subscale) and the scale as a whole (at the level of significance r <0.001). All 27 variables yielded the corresponding weight of the single extracted component (KMO = 0.901; Sig. = 0.000), which determined that the scale had adequate validity. Based on the identified good metric characteristics, this scale can be recommended for use as a unique/autonomous multi-item scale designed to assess the quality of life of adults with lumbar syndrome.

scholarly journals Polish Adaptation of the Italian Spine Youth Quality of Life Questionnaire

2021 ◽  
Vol 10 (10) ◽  
pp. 2081
Author(s):  
Edyta Kinel ◽  
Krzysztof Korbel ◽  
Piotr Janusz ◽  
Mateusz Kozinoga ◽  
Dariusz Czaprowski ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Internal Consistency ◽  
Spinal Deformity ◽  
Cultural Adaptation ◽  
Life Questionnaire ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Quality Of Life Questionnaire ◽  
Cronbach's Alpha

The study aimed to carry on the process of the cultural adaptation of the Italian Spine Youth Quality of Life Questionnaire (ISYQOL) into Polish (ISYQOL-PL). The a priori hypothesis was: the ISYQOL-PL questionnaire is reliable and appropriate for adolescents with a spinal deformity. Fifty-six adolescents (mean age 13.8 ± 1.9) with idiopathic scoliosis (AIS) with a mean Cobb angle 29.1 (±9.7) and two with Scheuermann juvenile kyphosis (SJK) with a kyphosis angle 67.5 (±17.7) degrees were enrolled. All patients had been wearing a corrective TLSO brace for an average duration of 2.3 (±1.8) years. The Institutional Review Board approved the study. The cross-cultural adaptation of the ISYQOL-PL was performed following the guidelines set up by the International Quality of Life Assessment Project. The reliability was assessed using internal consistency (the Cronbach’s alpha coefficient) and test–retest reliability (intraclass correlation coefficient ICC2.1, CI = 95%); moreover, floor and ceiling effects were calculated. The internal consistency was satisfactory (Cronbach’s alpha coefficient 0.8). The test–retest revealed high reliability with the value of ICC2.1 for the entire group 0.90, CI (0.84 to 0.94). There was neither floor nor ceiling effect for the ISYQOL-PL overall score. The ISYQOL-PL is reliable and can be used in adolescents with spinal deformity.

scholarly journals Validation of the Spanish Version of Newcastle Stroke-Specific Quality of Life Measure (NEWSQOL)

2020 ◽  
Vol 17 (12) ◽  
pp. 4237
Author(s):  
Concepción Soto-Vidal ◽  
Soraya Pacheco-da-Costa ◽  
Victoria Calvo-Fuente ◽  
Sara Fernández-Guinea ◽  
Carlos González-Alted ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Construct Validity ◽  
Response Rate ◽  
Spanish Version ◽  
Psychometric Validation ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Life Measure ◽  
Cronbach's Alpha

Background: Stroke causes a wide variety of clinical manifestations that may have a negative impact on quality of life. Therefore, it is very important to use specific instruments for measuring quality of life in individuals who suffered a stroke. The aim of this study was to develop a psychometrically validated Spanish version of the Newcastle stroke-specific quality of life measure (NEWSQOL). Methods: A psychometric validation of the Spanish version of the NEWSQOL questionnaire was carried out in 159 patients. The reliability (intraclass correlation coefficient and Cronbach’s alpha coefficient), validity (factorial analysis and Spearman’s coefficient), feasibility (response rate), and the ceiling and floor effects were calculated. Results: Internal consistency showed that Cronbach’s alpha coefficient was 0.93. The test–retest reliability was high or excellent for all domains (range 0.71–0.97 p < 0.001). The response rate of the questionnaire was 100% and the average administration time was 20.5 (±7.2) min. No ceiling effect was detected and two domains (pain and vision) may have a significant potential for floor effect. Construct validity showed that all the variables are important enough to keep them all in the questionnaire. Concerning convergent construct validity, a high correlation was found with the Nottingham Health Profile, the Barthel Index, and the Modified Rankin Scale. Conclusion: The Spanish version of the NEWSQOL questionnaire is reliable, valid, and feasible to evaluate quality of life in the Spanish population.

Abstract 32: Is the Seattle Angina Questionnaire suitable for Chinese patients?

2013 ◽  
Vol 6 (suppl_1) ◽  
Author(s):  
Hui Y Zhang ◽  
Li Yu ◽  
Mei J Lju ◽  
Chang H Yu ◽  
Zhi H Chen ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Internal Consistency ◽  
Treatment Satisfaction ◽  
Life Domain ◽  
Chinese Patients ◽  
Seattle Angina Questionnaire ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha

Background: The Seattle Angina Questionnaire (SAQ) has been widely used in China since it was introduced in 1996. However, the validity and reliability of the translated SAQ has never been assessed in published papers. Even worse, when we use the translated SAQ in clinical studies, we found some patients have difficulty upon understanding some items due to the translation and cultural inadaptation. In this study, we are going to find out if the SAQ is suitable for Chinese patients. Methods: Step one: to assess the psychometric properties of SAQ, 1787 angina patients’ data of our previous cross-section study was used. Exploratory Factor Analysis (EFA) was used to evaluate the construct validity, and internal consistency (Cronbach’s alpha coefficient) was used to evaluate the reliability, and t-test was used to discriminate patients with different Canadian Cardiovascular Society Classification (CCSC) levels. Step two: to find out which item is unsuitable, semi-structured individual patient interview was used. Patients were asked to complete a copy of SAQ first, and then were asked did they encounter difficulties on understanding the items and why. Results: Step one: Cronbach’s alpha coefficient was 0.885, but 0.605 for the quality of life domain. EFA showed 4 factors and couldn’t match the original five domains. More than 50% of patients give the same answer “mostly satisfied” to item 6-8 about treatment satisfaction, and these items can’t detect the differences among patients with different CCSC levels. Item 5 “bothersome of taking pills” is highly correlated with Quality of life domain other than the treatment satisfaction domain it is intended to measure. The correlation between item 6 and 8 is 0.816, which shows a redundancy. The reliability and validity of the translated SAQ is not satisfied. Step two: 92 out of 112 invited patients participated in the interview, 39 (42.39%) couldn’t understand item 10, and 7 (7.61%) of item 6. As to item 10, “feeling of the current angina if long-lasting”, patients were confused of the answer “level of satisfaction”, which result a low internal consistency of Qol. As to item 6, “everything is done for treatment”, 75 (81.52%) patients thought it’s the same meaning with item 8 “satisfaction with current treatment.” Maybe influenced by Confucian, patients chose “satisfaction” even their angina getting worse. Among the 1787 patients, 131 (7.33%) patients took nitros when angina attacked; however, 234(13.09%) patients took Chinese herbal medicine. So they couldn’t answer item 4 “frequency of nitros taken for angina” correctly. Conclusions: The currently used SAQ is unsuitable for Chinese patients. It doesn’t completely capture the characteristics and conditions of Chinese patients. Further study is needed to adapt both, the translation and culture of the SAQ.

scholarly journals Transcultural Adaptation and Validation of Persian Version of Celiac Disease Questionnaire (CDQ); A Specific Questionnaire to Measure Quality of Life of Iranian Patients

2018 ◽  
Vol 7 ◽  
pp. e1106
Author(s):  
Farnoush Barzegar ◽  
Mohamad Amin Pourhoseingholi ◽  
Mohammad Rostami-Nejad ◽  
Sepideh Gholizadeh ◽  
Mohammad Reza Malekpour ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Celiac Disease ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Persian Version ◽  
Confirmatory Factor ◽  
Disease Questionnaire ◽  
Iranian Patients

Background: The assessment of health-related quality of life has become an important primary or secondary outcome measure in clinical and epidemiologic studies. The aim of this study was to validate a Persian version of Celiac Disease Questionnaire (CDQ) for Celiac disease (CD) among Iranian patients. Materials and Methods: The English version of the CDQ adapted to the Persian language by a forward-backward translation by 3 professional bilingual translators (1 medical, 2 nonmedical). The content validity of translated questionnaire were studied by 5 experts who complete the validity form regarding the questionnaire. Then in a pilot study, translated CDQ completed by 81 CD patients who referred to Taleghani Hospital, Tehran. For assessing the validity and reliability of the questionnaire, confirmatory factor analysis and Cronbach’s alpha coefficient have been done, using Lisrel and SPSS software. Results: Of 81 CD patients entered to this study with mean age of 30.54 years old, 71.6% were female. Also, 56.8% were married and 45.7% were high educated. The mean of CDQ total score was 119.18±34. The calculated Cronbach’s alpha coefficient for CDQ questionnaire was 0.9. Also, for each subgroups the Cronbach’s alpha coefficient were calculated as the following; emotion: 0.92, Social: 0.89, Worries: 0.73, Gastrointestinal: 0.78. Confirmatory factor analysis indicated that all questions could be remain in questionnaire respectively. Conclusion: The reliability of the Persian version of CDQ was excellent with Cronbach’s alpha coefficients and Persian version of CDQ retains the psychometric properties of the original instrument and should be useful to assess outcome in studies and clinical trials involving Iranian patients with CD. [GMJ.2018;7:e1106]                            

scholarly journals Examination of the psychometric properties of the persian version of the COVID-19-impact on Quality of Life Scale

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Ali Hasanpour Dehkordi ◽  
Marzieh Aslani ◽  
Abbas Ebadi ◽  
Selman Repišti ◽  
Borhan Moradveisi ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Psychometric Properties ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Health Crisis ◽  
Cronbach's Alpha ◽  
Persian Version ◽  
Quality Of Life Scale ◽  
The Impact

Abstract Introduction As a result of high transmission and mortality rates, the Covid-19 pandemic has led to a worldwide health crisis, isolation, and widespread fear, therefore negatively influencing people’s quality of life (QOL). The goal of the present study was to examine the psychometric properties (validity and reliability) of the Persian version of the COVID-19-Impact on Quality of Life (COV19-QoL) scale. Methods After translating the scale using the forward–backward method, face and content validly was qualitatively assessed. Then the scale was distributed to 488 individuals from the general population via online platforms. Construct validity was assessed using exploratory (EFA) and confirmatory (CFA) factor analysis. In addition, internal consistency was examined using Cronbach’s alpha coefficient and McDonald’s omega, relative stability was assessed using interclass correlation coefficient (ICC), and absolute stability was calculated through examination of standard error of measurement. Results The EFA revealed one factor that explained 55.96% of the total variance of the scale. Internal consistencies of 0.823 and 0.882 were found using Cronbach’s alpha coefficient and McDonald’s omega, respectively. In addition, an ICC of 0.837 (with a two-week interval) was found. Covid-19 had a greater impact on the QOL of healthy participants than that of those with underling conditions (p = 0.004), and also on the QOL of single participants than that of married ones (p = 0.032). Conclusion The Persian version of the COV19-QoL is a valid and reliable instrument that can be used to examine the impact of Covid-19 on QOL.

scholarly journals Validity and Reliability of the WHOQOL-BREF in the measurement of the quality of life of Sickle Disease Patients in Bahrain

2021 ◽  
Author(s):  
Amer Almarabheh ◽  
Manal Al Ghamdi ◽  
Abdulla Elbarbary ◽  
Ahmed Alqashar ◽  
Faisal alserdieh ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Internal Consistency ◽  
Convergent Validity ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Confirmatory Factor

Abstract Background Limited attention is devoted to the improvement of the quality of life of patients suffering from the negative consequences of Sickle cell disease (SCD). Our study focuses on the evaluation of the performance of the WHOQOL-BREF as a tool to measure the quality of life of SCD Patients in Bahrain. Methods We conducted a cross-sectional study that enrolled 273 SCD patients selected using a simple random sampling technique from primary health-care centers in Bahrain in 2019. A designed questionnaire including the WHOQOL-BREF was filled by the patients during face-to-face interviews in the health centers. The reliability of the WHOQOL-BREF was assessed by standardized Cronbach’s alpha coefficient, and the validity was measured by convergent validity, principal component analysis and confirmatory factor analysis. Results The WHOQOL-BREF had good internal consistency as Cronbach’s alpha coefficient for the overall scale was 0.91. The convergent validity results indicated that the correlation coefficients values for all scale domains are significantly correlated at α < 0.01. Confirmatory factor analysis found that the four-domain structure produced a robust fit to the data. Conclusions The WHOQOL-BREF tool has high internal consistency and validity in assessing the quality of life of Sickle Disease patients in Bahrain.

scholarly journals Translation, adaptation and initial validation of Food Allergy Quality of Life Questionnaire: child form in Greek

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Zoe Morou ◽  
Georgios N. Lyrakos ◽  
Nikolaos G. Papadopoulos ◽  
Nikolaos Douladiris ◽  
Athina Tatsioni ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Factor Analysis ◽  
Food Allergy ◽  
Convergent Validity ◽  
Underlying Structure ◽  
Life Questionnaire ◽  
Cronbach’S Alpha ◽  
Quality Of Life Questionnaire ◽  
Cronbach's Alpha

The aim of the study is to determine the reliability and validity of the Greek version of the Food Allergy Quality of life Questionnaire- Child Form (FAQLQ-CF). After linguistic validation, the Greek FAQLQCF, Food Allergy Independent Measure (FAIM) and Pediatric Quality of Life Inventory (PedsQL™) were used by a physician to interview children diagnosed with food allergy and aged 8-12 via telephone. Cronbach’s alpha was used to evaluate reliability, and factor analysis to assess construct validity. The correlation between FAQLQ-CF and FAIM was moderate (rho=0.509, P&lt;0.001) and internal consistency was strong (Cronbach’s alpha 0.905). FAQLQ-CF discriminated well each question’s contribution to children’s quality of life deterioration (32- 80%), each child’s quality of life (17-89%), children differing in doing things with others (total score 3.55 vs 2.57, difference =0.98 &gt; minimal clinical importance difference = 0.5; P&lt;0.001), but not children differing in reporting anaphylaxis. The total FAQLQ-CF score correlated with the total PedsQL™ score and with the score of one of PedsQL™ subscales, demonstrating convergent validity. Factor analysis uncovered an underlying structure of four factors, explaining 50% of the variance. We can conclude that Greek FAQLQ-CF is a reliable, valid, discriminant tool for interviewing food allergic children aged 8- 12, detecting those in need for immediate care.

scholarly journals Instrumen Pengukuran Kualitas Hidup Anak Terinfeksi HIV

2011 ◽  
Vol 6 (3) ◽  
pp. 126
Author(s):  
Toha Muhaimin ◽  
Budi Utomo ◽  
Dharmayati B. Utoyo ◽  
Nia Kurniati ◽  
Triyanti Anugrahini ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Measurement Instrument ◽  
Immune Deficiency Syndrome ◽  
Deficiency Syndrome ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Special Instrument ◽  
The Impact ◽  
Hiv Aids

Anak penderita Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome (HIV/AIDS) di Indonesia memperlihatkan tren yang semakin meningkat karena meningkatnya proporsi perempuan terinfeksi HIV/AIDS. Pertimbangan pada dampak besar yang dihadapi anak penderita HIV mendorong kebutuhan pengembangan instrumen khusus untuk mengukur kualitas hidup mereka. Penelitian ini bertujuan mengembangkan instrumen kualitas hidup anak penderita AIDS dengan memodifikasi instrumenyang ada sesuai dengan konteks Indonesia. Pada penelitian ini ditemukan hasil bahwa instrumen yang dikembangkan mempunyai reliabilitas yang cukup baik pada balita dan anak usia 5 – 11 tahun. Nilai reliabilitas (Cronbach’s Alpha) balita, domain fungsi fisik, fungsi sosial, dan gejala HIV masing masing adalah 0,71; 0,72; dan 0,88, sedangkan pada anak 5 – 11 tahun, domain fungsi-fungsi fisik, psikologis, sosial, sekolah, dan gejala terkait HIV masing-masing 0,76; 0,89; 0,67; 0,67; dan 0,88. Penelitian ini menunjukkan untuk konteks Indonesia, nilai ambang batas CD4 yang menunjukkan perbedaan kualitas hidup adalah 15%. Pada balita, dari berbagai ketiga domain, hanya domain gejala terkait HIV yang cukup sensitif untuk mendeteksi perbedaan kualitas hidup anak, sementara pada anak 5 – 11 hanya domain fungsi fisik dan fungsi psikologis yang cukup sensitif untuk mendeteksi perbedaan kualitas hidup anak. Penelitian ini menunjukkan bahwa dampak HIV pada anak masih terkonsentrasi pada gangguan fungsi fisik, fungsi psikologis, dan gejala terkait HIV.Kata kunci: Instrumen pengukuran, anak terinfeksi HIV, kualitas hidupAbstractChildren with HIV/AIDS in Indonesia are increasing due to the increase of woman with HIV. A special instrument for measuring quality of life (QoL) of children with HIV is needed to be developed as the great impact of the infection to children. This study was conducted by modifying the existing QoL instrument of children for Indonesian context. The study indicated that thereliability of the instrument is quite good both for children under 5 and 5 – 11 years old. Reliability values (Cronbach’s Alpha) for under 5, domains of physical function, social function, and HIV-related symptoms are 71, 72, and 88 respectively while for children 5 – 11 years old, domains of physical, psychological, social, and school functions, and HIV-related symptoms are 76, 89, 67, 67, and 88 respectively. The study showed, for Indonesian context, 15% of CD4 is indicated as the threshold to detect the difference of QoL forchildren with HIV. However, for under 5 years old, only questions of HIV-related symptoms domain which is sensitive to detect difference QoL, whereas for children of 5 – 11 years old, the questions concerning physical and psychological domains which are sensitive to detect difference QoL. The study indicated that the impact of HIV on children is mostly on physical andpsychological functions and HIV-related symptoms.Key words: Measurement instrument, children with HIV, quality of life

scholarly journals Reliability and Validity of the Persian Version of the Quality of Life in Autism Questionnaire (QoLA) - Parent Version in Iranian Mothers

2021 ◽  
Author(s):  
Seyed-Sirvan Hosseini ◽  
Seyedeh Zeinab Beheshti ◽  
Valsamma Eapen ◽  
Amir Almasi-Hashiani ◽  
Saman Maroufizadeh
Keyword(s):  
Quality Of Life ◽  
Convergent Validity ◽  
Reliability And Validity ◽  
Autism Spectrum ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Persian Version ◽  
Children With Asd ◽  
Confirmatory Factor

Abstract Background: Parents of children with autism spectrum disorder (ASD) are known to poorer quality of life. The Quality of Life in Autism Questionnaire (QoLA) is a commonly used instrument for measuring the quality of life in parents of children with ASD. The aim of this study was to evaluate the reliability and validity of the QoLA in Iranian mothers of children with ASD.Methods: The sample of this methodological study consisted of 88 mothers of children with ASD in Arak, Iran. The data were collected using convenience sampling method between September 2019 and January 2020. A battery of questionnaires was administered to mothers which included the QoLA, Patient Health Questionnaire-9 (PHQ-9), Generalized Anxiety Disorder-7 (GAD-7), and Perceived Stress Scale-4 (PSS-4). Factor structure and internal consistency of the QoLA were examined via confirmatory factor analysis (CFA) and Cronbach’s alpha, respectively. Convergent validity was examined by relationship with WHOQOL-BREF, PHQ-9, GAD-7 and PSS-4.Results: The mean total scores of QoLA Part A and Part B were 86.50 (SD=13.89) and 61.41 (SD=18.21), respectively. Both subscales exhibited good internal validity (with Cronbach’s alpha of 0.899 and 0.950 for Part A and Part B, respectively). The convergent validity of both subscales of QoLA was proved via moderate to strong correlations with measure of the WHOQOL-BREF. In addition, both QoLA Part A and Part B scores were negatively correlated with measures of PHQ-9, GAD-7, and PSS-4. The confirmatory factor analyses provided evidence for unidimensionality of both subscales of QoLA.Conclusion: The Persian version of QoLA displays satisfactory reliability and validity in Iranian mothers of children with ASD.

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