Browsing by Subject "item total correlation"

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    Reliability and validity of turkish version of biological rhythms interview of assessment in neuropsychiatry
    (2012) Aydemir Ö.; Akkaya C.; Altinbaş K.; Kora K.; SüCüllüoglu Dikici D.; Akdeniz F.; Kalayci F.; Oral E.T.; Vahip S.
    Objective: In this study, it is aimed to perform the validity and reliability of the Turkish version of Biological Rhythms Interview of Assessment in Neuropsychiatry. Methods: The study was performed with 79 bipolar type-I disorder, 26 bipolar type-II disorder and 42 major depressive disorder patients attending to mood disorder clinics of three university hospitals and one state training hospital as well as 116 university students consisting healthy control subjects. The mean duration of the illness was 15.1 years for the bipolar groups and 9,3 years for the depressive group. For concurrent validity, Pittsburgh Sleep Quality Index was used. In the statistical analyzes, internal consistency coefficient, item-total score correlations, exploratory and confirmatory factor analyzes, correlation with the other scale and ROC curve were calculated. Results: The forward and back translation of the Biological Rhythms Interview of Assessment in Neuropsychiatry was performed, and linguistic equivalence was obtained with the scale prepared. In internal consistency, the Cronbach's alpha coefficient was found to be 0.899 and item-total correlation coefficients were between 0.239 and 0.747. In the exploratory factor analysis, a total of three factors representing 56.5% of the total variance were obtained and the themes of the factors were daily activities, sleep and eating habits and interpersonal relations. In the confirmatory factor analysis, confirmatory fit index was 0.932 and root mean square of approximation was 0.065. The correlation between Biological Rhythms Interview of Assessment in Neuropsychiatry and Pittsburgh Sleep Quality Index was found to be r=0.238. In the sensitivity and specificity analysis, the area under the ROC curve was 0.876. The scale discriminated mood disorder groups from the healthy control group. Conclusion: It is shown that the Turkish version of Biological Rhythms Interview of Assessment in Neuropsychiatry which is used in the assessment of circadian rhythm and functionality is reliable and valid.
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    Reliability and validity of Turkish version of COPD Assessment Test; [KOAH deǧerlendirme testinin Türkçe geçerlilik ve güvenilirliǧi]
    (Ankara University, 2012) Yorgancioǧlu A.; Polatli M.; Aydemir Ö.; Yilmaz Demirci N.; Kirkil G.; Nayci Atiş S.; Köktürk N.; Uysal A.; Akdemir S.E.; Özgür E.S.; Günakan G.
    Introduction: This study is aimed to evaluate the reliability and validity of the Turkish version of chronic obstructive pulmonary disease (COPD) Assessment Test (CAT) in seven centers. Materials and Methods: 321 patients between 4-75 years of age, diagnosed and staged by Global Initiative for Obstructive Lung Disease (GOLD) 2011 criteria were included. The Breathlessness, Cough, Sputum scale (BCSS), mMRC (Modified Medical Research Council) dyspnea index, St. George Respiratory Questionnaire (SGRQ), CAT and Short Form-36 (SF-36) were used concurrently. In the statistical analyses, internal consistency, item-total score correlation, explorative factor analysis, correlation with other scales were calculated. Results: The mean age was 62.4 ± 8.9 years and 89.7% of the patients were male (n= 288). Mean FEV 1% was 51.9 ± 19.2 and most of the patients were in Stage 3. CAT total score was 17.8 ± 9.5. In the internal consistency, Cronbach alpha coefficient was found as 0.9116 and item-total score correlation coefficients were between 0.62-0.79 and all were statistically significant (p< 0.0001). The correlation of the test-retest score calculated after two weeks with the initial score was 0.96 (p< 0.0001). In the structural validity, factor analysis with principle component analysis and varimax rotation was performed. One factor solution was achieved with eigenvalue of 4.956 and it represented 61.9% of the total variance. All the items were contained in the factor and the factor loads were between 0.71-0.85. The correlation coefficients of CAT with other indexes were moderate to good. The discrimination of CAT among disease stages has been shown to be significant (p< 0.0001) and a significant correlation was found with pulmonary function tests (p< 0.0001). Conclusion: It is demonstrated The Turkish version of COPD Assessment Tool is reliable and valid.
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    Validation of the turkish version of the whoqol-age and a proposed alternative scale structure
    (Geriatrics Society, 2020) Özcan C.; Eser E.
    Purpose: The WHOQOL-AGE is a combination of the EUROHIS-QOL.8 and the short version of the WHOQOL-OLD. The aim of the present study is to explore the psychometric properties of the Turkish version of the WHOQOL-AGE in terms of its validity and reliability. Methods: Internal consistency, item–total correlations, and item success were analyzed taking the original structure into account. The validity tests consisted of construct validity and criterion validity analyses. The original scale structure was compared with a proposed new scale structure, comprised of two domains and based on the exploratory and confirmatory factor analysis, in terms of goodness-of-fit measures. Results: The mean age of the sample population (n = 550) was 73.09 ± 6.77, and 58.9% were female. Skewness and kurtosis were both within accepted limits (<1.0) and the floor and ceiling percentages also showed good measuring capacity (<10%). The Cronbach alpha value was 0.90 for domain 1 and 0.86 for domain 2. The goodness-of-fit analysis results for the original scale structure and the new scale structure, respectively, were comparative fit index = 0.89 and 0.83, Tucker Levis index = 0.87 and 0.81, and root mean square error of approximation (RMSEA) = 0.12 and 0.073. Conclusion: The WHOQOL-AGE.TR is moderately compatible with the original scale structure. The EFA revealed a new scale structure: the domain 1 (‘satisfaction with physical and mental health and well-being’ domain) includes items 1–5, 9 and 10, and the domain 2 (‘satisfaction with economic and social well-being’domain) includes items 6–8 and 11–13. © 2020, Geriatrics Society. All rights reserved.
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    Adaptation and validation of the Turkish version of the Caring Culture Survey
    (John Wiley and Sons Inc, 2021) Gülşen M.; Kutlu A.
    Aim: To assess the validity and reliability of the Caring Culture Survey in a sample of Turkish nurses. Background: Health care institutions have increased their focus on the caring culture to improve the satisfaction of both employees and patients. However, there is a lack of valid and reliable tools in Turkish that measure nurses’ perceptions of caring culture. Method: This two-phase psychometric study was conducted by recruiting 240 nurses from one university hospital between August and October 2019. In phase 1, the scale's adaptation was implemented. In phase 2, construct validity was determined by confirmatory factor analysis. Reliability was tested by internal consistency and item–total correlation coefficients. Results: Adaptation results showed that the Turkish version of the scale is adequate for linguistic and content validation. Confirmatory factor analysis indicated a significantly good fit for a three-factor model. Cronbach's alpha coefficient was 0.84 for the overall scale. Conclusion: The Turkish version of the Caring Culture Survey showed consistently acceptable psychometric properties of reliability and validity. Implications for Nursing Management: The Turkish version of the Caring Culture Survey can be used as an instrument to assess nurses' perceptions of caring culture by health care and nurse managers. © 2021 John Wiley & Sons Ltd.