scholarly journals Procedures Used in Developing and Validating the Quality of Life Scale in the Context of the Ethno-Political Conflicts in Mathare and Kibra, Nairobi City County, Kenya

2020 ◽  
Vol 2 (2) ◽  
pp. 31-42
Author(s):  
Justus K. Musya

Slight differences in standard of living, issuing from horizontal inequalities between ethnic groups, are a predicate of ethnopolitical violence in Kenya. Developing and validating a scale to estimate the quality of life differences, between warring ethnic groups, can deepen our understanding of an important precursor of ethnopolitical conflict. From a careful review of poverty and developmental literature, the 16 items used in the Quality of Life Scale emerged. In subsequent exploratory factor analysis, a three-factor solution surfaced, and this was subjected to confirmatory factor analysis (CFA). The CFA model scale met the criteria for composite reliability, construct validity, and strict factorial invariance. The scale has enriched our understanding of the three latent dimensions of quality of life that matter most in characterizing the quality of life. First, the indicator "proud about your life" was the strongest factor for latent factor social and physical wellbeing. Second, “can save income”, a proxy for quality of employment. This was the leading indicator for latent factor disposable income. Third, and the indicator “house comfortable to live in” was the notable indicator of latent factor living standards. The Quality of Life Scale can track trends in quality of life of ethnic groups that have a history of ethnopolitical conflict in places like Mathare and Kibra. The scale can be used in other known hotspots of violence in Kenya too where ethnic groups are susceptible to ethnopolitical conflict borne of quality of life differences.

Author(s):  
Sahar Balanian ◽  
Hossein Fallahzadeh ◽  
Mohammad Ali Morowati Sharifabad

Background:Menopause can have adverse effects on the quality of life of postmenopausal women. The main purpose of this study was to determine the Validity and Reliability of the Persian version of the Utian Quality of Life Scale (UQOL) in iranian postmenopausal women in 2019 Methods: The questionnaire was first translated into Persian. After its adaptation with the original version and backward translating it into English, the face and content validity were assessed by a group of experienced experts. To this end, exploratory factor analysis was performed by Principal Factor Analysis method with varimax rotation. Convergent validity was assessed by correlating the Persian version of UQOL and the 36-Item Short Form Health Survey (SF-36). Finally, the mean quality of life score of postmenopausal women in different domains as well as its mean in different domains based on age, education level, menopausal age, and number of children were calculated. Results: Regarding reliability, the alpha coefficient was obtained 0.66 for occupation domain, 0.52 for health domain, 0.50 for emotional domain, and 0.90 for sex domain. There was a significant relationship between quality of life and age, menopausal age, occupation and number of children in all domains in menopausal women. There was a significant relationship between BMI and quality of life score in postmenopausal women only in physical health domain. Conclusion:it seems this questionnaire can’t be used in research on the quality of life of postmenopausal women.


2022 ◽  
Vol 12 ◽  
Author(s):  
Ryunosuke Goto ◽  
Natsumi Matsuda ◽  
Maiko Nonaka ◽  
Yu Hamamoto ◽  
Yosuke Eriguchi ◽  
...  

Background: Though Gilles de la Tourette's syndrome (GTS) has significant impact on the quality of life of its patients, measures of health-related quality of life (HR-QOL) specific to adolescents and adults with GTS were not developed until recently. The present study provides evidence on the validity of the Gilles de la Tourette Syndrome-Quality of Life Scale (GTS-QOL), the first disease-specific HR-QOL instrument for GTS patients, for the first time in an East Asian sample.Methods: One hundred and two Japanese individuals aged 13 and above with GTS were included in our study. Internal consistency was evaluated using Cronbach's alpha. The 4-factor structure of the GTS-QOL was assessed using confirmatory factor analysis, using goodness of fit indices, factor loadings of each questionnaire item, and covariances between factors. Validity was assessed using interscale correlations. Convergent and discriminate construct validity was evaluated using correlations with other scales such as the 28-item General Health Questionnaire, the Yale Global Tic Severity Scale, and the short version of the Padua Inventory.Results: Scaling assumptions were met. Internal consistency reliability was high, with a Cronbach's alpha of 0.96. Confirmatory factor analysis revealed sufficient factor loadings and goodness of fit. All measures of goodness of fit corroborated the fit of the 4-factor model. Standardized covariances between factors in the confirmatory factor analysis were >0.8. There were significant correlations with other well-validated scales, and thus convergent and discriminate construct validity was sufficient.Conclusion: The GTS-QOL is a valid and reliable instrument to measure disease-specific HR-QOL of GTS patients in Japan.


2016 ◽  
Vol 5 (1) ◽  
pp. 10 ◽  
Author(s):  
GholamReza Kheirabadi ◽  
Nasrin Masaeli ◽  
Victoria Omranifard ◽  
MohammadReza Maracy ◽  
Anahita Khedri

Author(s):  
Teerayut Kongsin ◽  
Naesinee Chaiear ◽  
Nikom Thanomsieng ◽  
Sirintip Boonjaraspinyo

The Work-Related Quality of Life Scale (WRQLS) was developed by Van Laar et al. The Thai version was developed and could be completed in 13.4 min on average with some items having a factor loading of less than 0.4. The aims of this study were (a) to develop a brief Thai version of the WRQLS (brief THWRQLS), and (b) to assess its validity and reliability. A descriptive correlation study was performed with the components of THWRQLS selected based on statistical and judgmental criteria. The statistical criteria were developed using secondary data from 320 physicians identifying discrimination, internal consistency and exploratory factor analysis (EFA). The judgmental criteria included content validity and agreement by five experts. The web-based brief THWRQLS was then used by 250 health personnel, and confirmatory factor analysis (CFA) was conducted and internal consistency assessed. The brief THWRQLS consisted of seven dimensions, encompassing 25 of the original 32 items. The CFA revealed that most of the standardized factor loadings were greater than 0.5. The χ2goodness of fit was 268.772 (p < 0.01), the comparative fit index was 0.971, the root mean square error of approximation was 0.039, and the standardized root mean square residual was 0.049. The Cronbach’s alpha coefficient of the scale was 0.94, and almost all dimensions were greater than 0.7 except for that of “stress at work,” which was 0.53. In conclusion, the brief THWRQLS appeared to be valid, and the reliability was acceptable, except in the dimension of “stress at work.”


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