scholarly journals Validation and reliability study of a ventilator usability assessment tool

2018 ◽  
Author(s):  
A. Paykari ◽  
A. Mazloumi ◽  
G. H. Halvani ◽  
S. Ghaneh ◽  
Musa Mashayekhi

Background: Usability is an index to assess a product from the viewpoint of users satisfaction, efficiency and productivity improvement. The main attributes of usability that are derived from the human factors are  and used  in usability design of the interfaces Include: compatibility, consistency, flexibility, minimal action, perceptual limitation, usefulness, learnability, ease of use, minimal memory load, user guidance, satisfaction and errors. The main aim of this study was to assess the usability of interface design tool for a ventilator utilized in the hospitals of Arak city, Iran; and study its validation and reliability. Methods and Materials After constructing the initial questionnaire from the standard sources, specific techniques to determine the validity,  and Cronbach's alpha coefficient were used for the validity and reliability study. The study procedure was: determining the scope and dimensions of the questions, drafting questionnaire, assigning members of the expert panel, study, questionnaire data acquisition  and analysis methods, determining acceptance criteria of the questions and the content validity and reliability index. Results Final tool was a 42-items questionnaire. The content validity index (CVI) of questionnaire was 0.86. The results showed that the total Cronbach's alpha coefficient was 0.89 as an acceptable value for the reliability of questionnaire. Conclusion After the final questionnaire design and the appropriate validity and reliability of it, adopting this tool to assess the usability of breathing apparatus (ventilator) is recommended. With usability assessment of such vital instruments, quality improvement, higher efficiency and productivity as well as errors reduction and good design user interface will be achieved. Keywords: usability, ventilator, evaluation questionnaire, content validity, reliability

2018 ◽  
Vol 6 (8) ◽  
pp. 1512-1516 ◽  
Author(s):  
Nahid Ardian ◽  
Seyed Alireza Afshani ◽  
Mohammad Ali Morowatisharifabad ◽  
Seyed Saeid Mazloomi Mahmoodabad ◽  
Ali Akbar Vaezi ◽  
...  

BACKGROUND: Given the increased rate of divorce, it is important to analyse the characteristics of divorce applicants. The theory of planned behaviour (TPB) can provide a suitable framework to predict, explain, and/or change the behaviours. In Iran, no instrument can be found, based on health education models, to investigate divorce petition filing as a behaviour.AIM: This study was conducted to design a questionnaire on withdrawal of divorce petition based on the TPB and estimate its validity and reliability.MATERIAL AND METHODS: A qualitative study was conducted in 27 participants involved in the divorce process using directed content analysis. The face and content validity of 58 items, drawn from the qualitative study, were evaluated by 10 experts. The reliability was estimated using Cronbach’s alpha coefficient. The SPSS version 16 was used to analyse data.RESULTS: Estimates of the face and content validity (quantitative and qualitative), revealed that of the 58 items, 48 were valid based on four of the constructs of the TPB. Cronbach’s alpha coefficient was also derived greater than 0.6.CONCLUSION: The designed questionnaire, whose validity and reliability was confirmed in this study, can be used in similar studies. However, the social and cultural differences and their related effects should be considered.


Author(s):  
Natalia Esquivel Garzón ◽  
Luz Patricia Díaz Heredia

Objective. To determine the validity and reliability of the Treatment Adherence Questionnaire for Patients with Hypertension (TAQPH), Spanish version, designed by Chunhua Ma et al.Methods. This study was carried out in the city of Ibagué (Colombia)  and the test validation determined validity (face, content, and construct) and reliability. Face and content validity were conducted through expert judgment, using Fleiss’ Kappa Coefficient statistical tests and modified Lawshe’s content validity index. The construct validity and the reliability test had the participation of 220 people with diagnosis of primary hypertension. Reliability was calculated through Cronbach’s alpha statistical test.Results. In the face validity, the instrument reported a Fleiss’ Kappa index was 0.68 in comprehension, 0.76 in clarity, and 0.64 in accuracy, interpreted as a substantial agreement. The content validity index was satisfactory with 0.91; el exploratory factor analysis reported six factors with a total variance explained of 54%. Cronbach’s alpha for the total scale was 0.74.Conclusion. The Spanish version of the TAQPH is a valid and reliable scale to evaluate adherence to treatment in patients with primary hypertension.Descriptors: essential hypertension; treatment adherence and compliance; surveys and questionnaires; psychometrics; validation studies.How to cite this article: Esquivel N, Díaz LP. Validity and Reliability of the Treatment Adherence Questionnaire for Patients with Hypertension. Invest. Educ. Enferm. 2019; 37(3):e09.


2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Asma Mostafa ◽  
Rozina Hoque ◽  
Mohammad Mostafa ◽  
Md. Mashud Rana ◽  
Faisal Mostafa

Empathy is considered to be associated with better patient compliance, satisfaction, and clinical outcomes. The aim of the study is to measure and examine empathy among a sample of undergraduate medical students of Bangladesh. It was a cross-sectional study and all the medical students of first through fifth year enrolled at Chattagram Maa-O-Shishu Hospital Medical College during the study period of 2014 were surveyed. Participants anonymously completed the Jefferson Scale of Empathy Medical Student version translated into Bengali language, a valid and reliable 20-item self-administered questionnaire. Principal component factor analysis with varimax rotation and Cronbach’s alpha coefficient were calculated to check validity and reliability of the scale. ANOVA was used to examine the differences in empathy between gender, academic years, and specialty preferences. The mean empathy score was 110.41 ± 13.59. Cronbach’s alpha coefficient was 0.88. There were significant associations between gender and empathy scores. The level of empathy in medical students gradually increases after clinical training in medical college. A nonsignificant difference was found between empathy scores and specialty preferences. It is suggested that the medical curriculum in Bangladesh should include more extensive program to promote empathy and other humanistic values among the medical students.


2014 ◽  
Vol 22 (3) ◽  
pp. 368-380 ◽  
Author(s):  
Muder Alkrisat ◽  
Vivien Dee

Background and Purpose: To establish the psychometric soundness for Coping and Adaptation Processing Scale (CAPS) using the Roy adaptation model as theoretical framework. Method: A descriptive, cross-sectional survey of a convenience sample of 199 nurses working in different acute health care facilities in California. The internal consistency of the multifactor CAPS questionnaire was explored using Cronbach’s alpha coefficient. Factors correlation was examined using Pearson product moment correlation. The factor structure was studied using confirmatory factor analyses. Results: In the confirmatory factor analysis, the indices of fitness highly supported these results. The Cronbach’s alpha coefficient for the total score was .81 and varied between .31 and .78 in the 5 domains. A positive and significant correlation emerged between CAPS factors and total scores (r = .91, p < .01) ranging from .17 to .81. CAPS showed acceptable validity and reliability for measuring the coping of nurses in acute setting. Future studies using the scale might lead to the improvement of the subscales measurement. Conclusion: The psychometric data suggests that CAPS is a highly suitable instrument to measure coping processes.


Author(s):  
Hosein Ebrahimipour ◽  
Elahe Hooshmand ◽  
Mehdi Varmaghani ◽  
Seyyed Morteza Mojtabaeian

Background: Many organizations believe that physician involvement is important in quality and safety of health services, but they did not properly define, measure, and improve it, so because of the importance of the quality of health care and increasing the involvement of physician this study was conducted to evaluate the validity and reliability of a questionnaire on the challenges of physicians' participation in quality improvement programs. Methods: In this cross-sectional study conducted in the hospitals of Mashhad University of Medical Sciences, a researcher-made questionnaire about challenges of physicians' participation in accreditation activities used for data gathering. The content validity ratio index and content validity index were also calculated. To measure the internal consistency of the instrument, the questionnaire was distributed among 14 physicians, Cronbach's alpha coefficient was determined. For stability or reproducibility of the instrument, test - retest and correlation coefficient were calculated. By distributing questionnaires among 14 people those meeting inclusion criteria, the correlation coefficient was measured twice and at intervals of 2 weeks. SPSS 21 software was used for data analysis Results: The initial questionnaire was consisted of 61 items, which were reduced to 38 items after face and content psychometrics. The questionnaire has 12 sub-concepts. Cronbach's alpha coefficient of the questionnaire was 0.83 and the intragroup correlation coefficient in 2 measurements 2 weeks apart was 0.94. Conclusion: This questionnaire is the first and only valid and reliable dedicated tool in the field of challenges of physicians' participation in accreditation activities in Iran, which can measure and prioritize the challenges in each health center and it can be used to improve health care quality services that are performed by doctors.


2020 ◽  
Author(s):  
Samaneh Youseflu ◽  
Shane W. Kraus ◽  
Fatemeh Razavinia ◽  
Majid Yousefi Afrashteh ◽  
soudabeh niroomand

Abstract Background: The assessment of sex addiction among different populations requires a valid and reliable tool. Since the Bergen–Yale Sex Addiction Scale (BYSAS) was not available in Iran, this study aimed to evaluate the validity and reliability of the Persian version of BYSAS. Method: After translation/back-translation procedure, a total of 756 Iranian men and women completed the BYSAS. The structural validity of this tool was evaluated by exploratory and confirmatory factor analysis. An expert panel review also examined content validity of the items. Psychometric properties of the scale including validity, reliability (internal consistency [Cronbach’s alpha]) and test-retest) and factor structure were assessed. Results: Content Validity Index (CVI) and Content Validity Ratio (CVR) scores for BYSAS were 0.75 and 0.62, respectively. Data analysis demonstrated satisfactory internal consistency (Cronbach’s alpha ranging from 0.88 to 0.89). Discussion: Study findings suggest that the BYSAS is a valid and reliable instrument for assessing sex addiction among Persian speaking adults. Replication of research findings is needed to expand the BYSAS for clinical and non-clinical Iranian populations.


Author(s):  
Cicero Luciano Alves Costa ◽  
Paulo Felipe Ribeiro Bandeira ◽  
Cintia De Oliveira Matos ◽  
Madson Pereira Cruz ◽  
Herbert Ugrinowitsch

This study aims to investigate the construct validity and reliability of the checklist for qualitative analysis of the overhand serve in Volleyball. Fifty-five male subjects aged 13-17 years participated in the study. The overhand serve was analyzed using the checklist proposed by Meira Junior (2003), which analyzes the pattern of serve movement in four phases: (I) initial position, (II) ball lifting, (III) ball attacking, and (IV) finalization. Construct validity was analyzed using confirmatory factorial analysis and reliability through the Cronbach’s alpha coefficient. The construct validity was supported by confirmatory factor analysis with the RMSEA results (0.037 [confidence interval 90% = 0.020-0.040]), CFI (0.970) and TLI (0.950) indicating good fit of the model. In relation to reliability, Cronbach’s alpha coefficient was 0.661, being this value considered acceptable. Among the items on the checklist, ball lifting and attacking showed higher factor loadings, 0.69 and 0.99, respectively. In summary, the checklist for the qualitative analysis of the overhand serve of Meira Junior (2003) can be considered a valid and reliable instrument for use in research in the field of Sports Sciences.


2019 ◽  
Vol 72 (suppl 1) ◽  
pp. 259-265
Author(s):  
Renata Soares de Macedo ◽  
Elena Bohomol

ABSTRACT Objective: To develop and validate an instrument for the self-assessment of the Patient Safety Centers in health care institutions. Method: Non-experimental methodological study. Divided in the following stages: literature review and construction of the preliminary instrument; content validation by nine professionals with experience in Quality Management and patient safety, who contributed to the adequacy of the items in terms of clarity and relevance; finally, 12 PSC coordinators, which conducted the reliability validation of the final instrument, using Cronbach's Alpha. Results: The instrument presented content validity regarding clarity and relevance, evidenced by an agreement level greater than 70%. The internal consistency presented high reliability, with a Cronbach's alpha of 0.857 for the general instrument, 0.825 for the domain Structure, and 0.809 for the domain Process. Conclusion: The instrument presented evidence of content validity and reliability for self-assessment, implementation and evaluation of the PSC in health institutions.


2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Emine Sari ◽  
Semra Erdoğan

This study was conducted with the aim of determining whether the Turkish form of the “Leisure-Time Exercise Questionnaire” developed by Godin is a valid and reliable tool for diabetic patients in Turkey. The study was conducted as a methodological research on 300 diabetic patients in Turkey. The linguistic equivalence of the questionnaire was assessed through the back-translation method, while its content validity was assessed through obtaining expert opinions. Cronbach’s alpha value was found to assess the reliability of the questionnaire. The test-retest analysis and the correlation between independent observers were examined. The content validity index (CVI) was found to be .82 according to the expert assessments, and no statistical difference was found between them (Kendall’sW=.17,p=.235). Cronbach’s alpha was found to beα=.64, the result of the test-retest analysis wasr=.97, and the correlation between independent observers (ICC) was .98. This study found that the Turkish form of the Leisure-Time Exercise Questionnaire is a valid and reliable tool that can be used to define and assess the exercise behaviors of Turkish diabetic patients.


Author(s):  
Ladan Ahmad-Amraji ◽  
Fatemeh Jafarzadeh-Kenarsari ◽  
Kobra Abouzari-Gazafroodi ◽  
Ehsan Kazemnezhad Leyli ◽  
Robabeh Soleimani

Aims: This study was conducted for translation, cultural adaptation, and validation of the Persian version of the Copenhagen multi-centre psychological infertility-fertility problem stress scales (COMPI-FPSS). Study Design: This study was a methodological study. Place and Duration of Study: This research was done in an infertility clinic of an educational hospital in Rasht (north of Iran), from November 2019 to January 2020. Methodology: This study was performed in two phases including tool translation and psychometric testing. Totally, 200 infertile people selected through convenience sampling among subjects met inclusion criteria were included in the study. After obtaining permission from the original tool designer, the COMPI-FPSS (14 items) was translated into Persian using the forward-backward method. Face, content, and construct validity, as well as internal consistency (Cronbach's alpha coefficient and McDonald's coefficient omega) were evaluated, and test-retest was conducted. The data were analyzed using exploratory factor analysis (EFA) by SPSS software Ver. 16. Results: EFA led to retaining of 11 items with 3 factors of “personal domain”, “marital domain”, and “social domain”, which explained 54.42% of the total variance. Cronbach's alpha coefficient for the whole questionnaire was calculated as 0.89; also the overall McDonald's coefficient omega of the questionnaire was equal to 0.82. The correlation between the two test administrations with a 14-day interval was estimated as 0.93. Conclusion: The Persian version of the COMPI-FPSS with 11 items and 3 factors had the desired cultural adaptation, validity, and reliability and it is recommended to use it in the future studies and infertility treatment centers.


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