Browsing by Author "Sharif-Nia, Hamid"
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- Parental hesitancy toward children vaccination: A multi-country psychometric and predictive studyPublication . Sharif-Nia, Hamid; She, Long; Allen, Kelly-Ann; Maroco, J. P.; Kaur, Harpaljit; Arslan, Gökmen; Gorgulu, Ozkan; Osborne, Jason; Rahmatpour, Pardis; Khoshnavay Fomani, FatemehAim Understanding vaccine hesitancy, as a critical concern for public health, cannot occur without the use of validated measures applicable and relevant to the samples they are assessing. The current study aimed to validate the Vaccine Hesitancy Scale (VHS) and to investigate the predictors of children’s vaccine hesitancy among parents from Australia, China, Iran, and Turkey. To ensure the high quality of the present observational study the STROBE checklist was utilized. Design A cross-sectional study. Method In total, 6,073 parent participants completed the web-based survey between 8 August 2021 and 1 October 2021. The content and construct validity of the Vaccine Hesitancy Scale was assessed. Cronbach’s alpha and McDonald’s omega were used to assess the scale’s internal consistency, composite reliability (C.R.) and maximal reliability (MaxR) were used to assess the construct reliability. Multiple linear regression was used to predict parental vaccine hesitancy from gender, social media activity, and perceived financial well-being. Results The results found that the VHS had a two-factor structure (i.e., lack of confidence and risk) and a total of 9 items. The measure showed metric invariance across four very different countries/cultures, showed evidence of good reliability, and showed evidence of validity. As expected, analyses indicated that parental vaccine hesitancy was higher in people who identify as female, more affluent, and more active on social media. Conclusions The present research marks one of the first studies to evaluate vaccine hesitancy in multiple countries that demonstrated VHS validity and reliability. Findings from this study have implications for future research examining vaccine hesitancy and vaccine-preventable diseases and community health nurses.
- Psychometric properties of the Greek simplified medication adherence questionnaire among Iranian hemodialysis patientsPublication . Sharif-Nia, Hamid; Alikari, Victoria; Maroco, João; Fatehi, Reza; Hoseinzadeh, Esmaeil; Nowrozi, PooryaPatients suffering from chronic kidney failure ultimately need kidney replacement therapies, such as hemodialysis. Adherence to treatment in these patients can play a central role in improving health levels and feelings of well-being. The aim of this study was to determine the psychometric properties of the Persian version of the modified version of the Greek Simplified Medication Adherence Questionnaire in hemodialysis patients. In a methodological study carried out in 2024, a sample of 411 hemodialysis patients was selected using a convenience sampling method. The GR-SMAQ-HD utilized in the study was translated, and its psychometric properties were evaluated through assessments of construct validity, including exploratory and confirmatory factor analysis, convergent validity, and divergent validity. Furthermore, the study examined the internal consistency of the scale to ensure its reliability. The mean age of the participants was 59.37 (SD = 12.99) years. The results of the tetrachoric correlation matrix with Varimax with Kaiser Normalization rotation using the first random dataset (n = 205) extracted three factors accounting for 74.4% of the variance comprising 8 items. The results of CFA showed that the data fit the model. As for construct reliability, Cronbach’s alpha, CR, AIC, and MaxR for all constructs were greater than 0.7, demonstrating good internal consistency and construct reliability. In the overall population, the mean score for treatment Adherence was 5.61 (SD = 1.95, 95% CI 5.42, 5.80). Invariance analysis shows that the model has strong measurement invariance between sex ($ΔCFI= − 0.001, ΔRMSEA= − 0.004$). The findings affirm the appropriateness of employing the Persian iteration of the GR-SMAQ-HD as a dependable and valid instrument for assessing adherence to treatment in hemodialysis patients. GR-SMAQ-HD is crucial for ensuring that patients follow their prescribed treatment regimens effectively.
- Psychometrics evaluation of the university student engagement inventory in online learning among Arab studentsPublication . Sharif-Nia, Hamid; Maroco, J. P.; Rahmatpour, Pardis; Ghahrani, Nassim; Muhammad Ibrahim, Fatima; Mohammad Ibrahim, Maryam; Kaveh, OmolhodaAim Student’ engagement is a predictor of various educational outcomes, and it is a key factor in perceived learning. This study aims to investigate the psychometric properties of University Student Engagement Inventory (USEI) among students of Arab universities. Methods In this cross-sectional methodological study 525 Arab university students participated. Data was collected from December 2020 to January 2021. The confirmatory factor analysis used for construct validity, reliability and Invariance analysis for Sex were evaluated. Results Confirmatory factor analysis indices confirmed the good model fit to the data (CFIscl=0.977, NFIscl=0.974, TLIscl=0.972, SRMR = 0.036, RMSEAscl=0.111, n = 525). All tested models showed strong invariance of the USEI between male and females. There was also evidence of convergent (AVE > 0.7 for all the scales) and discriminant validity (HTMT > 0.75 for all scales). Reliability evidence for the USEI measures in the sample of Arabic students was high (αordinal and ω above 0.86). Conclusion The results of this study support the validity and reliability of the USEI with 15 items and 3 factors and demonstrate the importance of students’ engagement in the learning process, academic progress, and self-directed learning.
- The relationship between fatigue, pruritus, and thirst distress with quality of life among patients receiving hemodialysis: a mediator model to test concept of treatment adherencePublication . Sharif-Nia, Hamid; Maroco, J. P.; Sivarajan Froelicher, Erika; Barzegari, Saeed; Sadeghi, Niloofar; Fatehi, RezaHemodialysis is a conservative treatment for end-stage renal disease. It has various complications which negatively afect quality of life (QOL). This study aimed to examine the relationship between fatigue, pruritus, and thirst distress (TD) with QOL of patients receiving hemodialysis, while also considering the mediating role of treatment adherence (TA). This cross-sectional study was carried out in 2023 on 411 patients receiving hemodialysis. Participants were consecutively recruited from several dialysis centers in Iran. Data were collected using a demographic information form, the Fatigue Assessment Scale, the Thirst Distress Scale, the Pruritus Severity Scale, the 12-Item Short Form Health Survey, and the modifed version of the Greek Simplifed Medication Adherence Questionnaire for Hemodialysis Patients. Covariance-based structural equation modeling was used for data analysis. The structural model and hypothesis testing results showed that all hypotheses were supported in this study. QOL had a signifcant inverse association with fatigue, pruritus, and TD and a signifcant positive association with TA. TA partially mediated the association of QOL with fatigue, pruritus, and TD, denoting that it helped counteract the negative association of these complications on QOL. This model explained 68.5% of the total variance of QOL. Fatigue, pruritus, and TD have a negative association with QOL among patients receiving hemodialysis, while TA reduces these negative associations. Therefore, TA is greatly important to manage the associations of these complications and improve patient outcomes. Healthcare providers need to assign high priority to TA improvement among these patients to reduce their fatigue, pruritus, and TD and improve their QOL. Further studies are necessary to determine the most efective strategies for improving TA and reducing the burden of complications in this patient population.
- University Student Engagement Inventory: Validation in the indian online learning contextPublication . Sharif-Nia, Hamid; Maroco, J. P.; She, Long; Narula, Dr Sumit; Ma, Lan; Kaveh, Omolhoda; Rahmatpour, Pardis; Ghahrani, NassimObjective: This study aims to evaluate sources of validity and reliability of the University Student Engagement Inventory among Indian Students. Method: The data of this study was collected from 518 Indian university students in the design of a cross-sectional study from May to June 2022. Then the validity and reliability of the inventory were assessed. Results: The results showed that all three factor models indicated good evidence of construct validity (TLI = 0.960, CFI = 0.967), NFI = 0.960, and SRMR = 0.043), and reliability. The internal consistency of all three factors was >0.7. Conclusions: According to the findings of the present study, it was found that the concept of university student engagement in Indian students is a concept with three sub-concepts and 15 items. For more learning, academic progress, and development, as well as obtaining better educational results, student participation is important. Significance Statement: Considering the importance of students’ engagement in improving their performance and learning, it is necessary to evaluate it. Since, in other countries, the psychoanalysis of the USEI tool has also been discussed; in this study, the researchers investigated the validity and reliability of student engagement tools in India.