Development of a scale to measure quality of life of overweight women
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This study presents the results of methodological research that derives evaluation items and tests the validity and reliability of the scale to measure quality of life of the overweight women.
The scale items were developed by the current researchers directly from the consultation data following a group interviewing process aiming to capture the women’s experiences, who are currently receiving primary health care. Pretest interviews were used to ensure that the questions were understood correctly. Six experts determined items for content validity of the scale and the evaluations of experts were scored using a content validity index. The scale is a Likert-type scale, ranging from 1 to 5. The items were tested on a sample of 506 healthy women. The body mass indices of participants were 30 and above. Psychometric analyses included explanatory factor analysis (EFA) and item response theory. Parallel analysis was used to extract factors in EFA. Internal consistency and Spearman Brown split-half test correlation were used for testing reliability.
The scale was refined as four final dimensions, comprising 40 items as a whole. The result of Bartlett’s Test of Sphericity was found sufficient (χ2 = 14164.92; p < 0.001) and the KMO value was 0.959. This statistically significant value (p < 0.001) indicates that the sampling was sufficient and data had normal distribution. Cronbach’s alpha was 0.967. The Spearman Brown coefficient was found to be 0.884.
It was found that the scale is a valid and reliable assessment tool that can be used to measure the quality of life of overweight women.
Level of evidence
Methodological study, Level V.
KeywordsScale Overweight women Quality of life Public health Turkey
Compliance with ethical standards
Conflict of interest
There was no conflict of interest.
The ethical consent that is required for the performance of the research was obtained from the Ethics Committee Gazi University; before the data were collected institutional permissions were obtained.
The women were asked to read the explanations related to the study on the front page of the questionnaire and to complete the questionnaire if they wished to participate in the study. After that, verbal and written consent were obtained from participants.
The data used to generate the results of this manuscript are available on request from corresponding author.
- 2.Branca F, Nikogosian H, Lobstein T (2007) The challenge of obesity in the WHO European Region and the strategies for response: summary: World Health OrganizationGoogle Scholar
- 3.WHO (2015) 10 facts on obesity. http://www.who.int/features/factfiles/obesity/en/. Accessed 01 Mar 2017
- 4.MMO (2010) Turkey nutrition and health survey 2010. Habits and nutritional status assessment final report. Ministry of Health Published, TurkeyGoogle Scholar
- 8.Ware JE, Kosinski M, Keller SD (1994) SF-36 physical and mental health summary scales: a user’s manual. New England Medical Center, BostonGoogle Scholar
- 10.A´gh T, Kova´cs G, Supina D, Pawaska M, Herman BK, Voko´ Z, Sheehan DV (2016) Systematic review of the health-related quality of life and economic burdens of anorexia nervosa, bulimia nervosa, and binge eating disorder. Eat Weight Disord 21:353–364. https://doi.org/10.1007/s40519-016-0264 CrossRefGoogle Scholar
- 13.WHOQOL (2017) Measuring quality of life the World Health Organization quality of life instruments. http://www.who.int/mental_health/media/68.pdf. Accessed 01 Mar 2017
- 16.Aydın Y, Celbek G, Kutlucan A, Önder E, Güngör A, Alemdar R, Coşkun H, Özhan H (2012) Batı Karadeniz Bölgesinde obezite prevelansi: Melen çalışması (prevalence of obesity in Western Black Sea Region: Melen work). Turk J Endocrinol Metabol 16:52–57. https://doi.org/10.4274/Tjem.1966 CrossRefGoogle Scholar
- 20.Cronin L, Guyatt G, Griffith L, Wong E, Azziz R, Futterweit W, Cook D, Dunaif A (1998) Development of a health-related quality-of-life questionnaire (PCOSQ) for women with polycystic ovary syndrome (PCOS). J Clin Endocrinol Metab 83(6):1976–1987Google Scholar
- 22.Erdoğan S, Nahcivan N, Esin M (2014) Research in nursing. Nobel medical bookstores, TurkeyGoogle Scholar
- 23.Şencan H (2005) Reliability and validity in the social and behavioural measures. Seçkin Press, TurkeyGoogle Scholar
- 27.Çokluk Ö, Şekercioğlu G, Büyüköztürk Ş (2012) Multivariate statistics for the social sciences SPSS and LISREL applications. Pegem Press, TurkeyGoogle Scholar
- 30.Tabachick BG, Fidel SF (2001) Principal components and factor analysis: using multivariate statistics. Harper Collins College Publishers. Northridge, CaliforniaGoogle Scholar
- 32.Tezbaşaran A (1996) Scale development guide. Psychologists Association Publications, TurkeyGoogle Scholar