Development and Psychometric Evaluation of the “Neurosurgical Evaluation of Attitudes towards Simulation Training” (NEAT) Tool for Use in Neurosurgical Education and Training
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Cronbach’s alpha is a very commonly used method in biomedical research. Cronbach’s alpha Indicates the extent to which the items in your questionnaire are related to each other, a useful coefficient for assessing the internal consistency of the items. Although this method is commonly used in medical research, the statistical software packages do not have the direct menu-driven operation for Cronbach’s alpha. Hence this paper intends to provide an R function (Cronbach. Alpha) for Cronbach’s alpha analysis.
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Introduction: Barriers ralated to patients, physian, nurses, and health system were the mostly responded by nurses as factors influencing them in pain management for patients. So, the valiable and riliable questionnaire is verry importence to measure the perception of Vietnamese nurses about pain management barriers The study objective: was to translate, adapt and conduct initial psychometric validation of the Vietnamese version of Perceived Obstacles to Pain Assessment and Management Practices questionnaire (V-POPAMP). Material and method: Translation, adaptation, and validity and reliability testing were performed . 6 expert panels evaluated content validity, and I-CVI, SCVI were applied to measured the content validity. The Cronbach alpha and ICC were used to measured for intenal consistence and stable reliability of V- POPAMP, respectively. A sample of 30 nurses was sellected in prepilot testing, and 30 other nurses participted in pilot testing. Results: The study found that I-CVI of each item ranged from 0.83-1 and S-CVI =0.96, indicating the V- POPAMP is good content validity. In addition, the V- POPAMP is good reliability, with Cronbach alpha for each subscale of 0.729 and more, and ICC for total score was 0.952 and for each subscale ranges from 0.822 to 0.984(p=.000) Conclusion:The V-POPAMPQ has good psychometric properties. It can be used to measure the perception of nurses about pain management barriers in Vietnam.
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Objectives: The aim of the present study was to develop and evaluate the psychometric properties of an instrument in Persian to assess the mothers’ knowledge, and perception about oral health of school children. Materials and Methods: A sequential exploratory mixed method design consisting of qualitative and quantitative phases was performed. We developed the questionnaire by inductive-deductive method, through a synthesis of literature review and a qualitative study with semi-structured interviews and focus group discussions. Face and content validity of the items were assessed by consulting a panel of 11 experts. In the quantitative phase, an exploratory factor analysis was performed using data from a cross-sectional study with a sample of 303 mothers. Reliability analysis with test-retest approach and Cronbach’s alpha coefficient and intra-class correlation coefficient (ICC) was done. Results: Pre-final version of the scale consisted of 120 items extracted from the qualitative study and literature review. After content and face validity, 92 items were chosen with the greatest agreement between experts, with a content validity index (CVI) >0.8 and content validity ratio (CVR) of 0.59. The final questionnaire covered 62 items. The overall Cronbach’s alpha was 0.94 and it ranged from 0.87 to 0.97 for the subscales. The ICC ranged from 0.91 to 0.98 (Cronbach's alpha ≥0.70). Conclusion: The present study introduced a valid and reliable questionnaire for assessment of the mothers’ perception regarding school children’s oral health. It can be used as a standardized measure for public health surveillance and evaluation of oral health promotion programs.
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To explore the content validity and the internal consistency of the diabetes Self-management Questionnaire (DSMQ) for persons with T2DM in Thailand.Diabetes Self-management Questionnaire (DSMQ) was developed in English. The translation of DSMQ into Thai language was performed by native Thai translators. A panel of five experts in Thailand evaluated the translation. Content validity was quantified by the content validity index (CVI). A cross-sectional design was used to test internal consistency by calculating Cronbach's alpha.The DSMQ contains 16 items. There are eleven items (69%) which showed excellent CVI; two items (12.5%) showed good CVI and three items showed acceptable CVI. The average scale of CVI was 0.90. The internal consistency of the DSMQ was 0.73.The Thai version of DSMQ showed excellent content validity; good internal consistency. The instruments can be used among Thai adults with DM in future research studies.
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Background: Hospital services are the most expensive medical service in modern health care systems. Intense care beds, in particular, are more important. The present study was conducted to design and validate a measuring tool for the factors affecting the distribution of hospitals' intensive care beds in Iran. Methods: In this mixed method study, first, all known factors affecting the distribution of hospitals' intensive care beds were extracted by reviewing related literature. Then, all 60 confirmed items were categorized into different dimensions. Face validity and content validity of the questionnaire was done by 20 medical experts through qualitative and quantitative methods. Validity and reliability indices, content validity index (CVI), content validity ratio (CVR), and Cronbach's alpha were measured. SPSS software were used for data analysis and significance level was set at less than .05. Results: From the 60 suggested items, 34 were confirmed by the expert panels and all items had CVR and CVI scores higher than 0.83 and 0.81, respectively. CVR and CVI for all 34 items were 0.88 and 0.89, respectively. Also, Cronbach's alpha coefficient (0.75) indicated a suitable internal consistency. The value of S-CVI / Ave was also calculated to be 0.92. Conclusion: In this study, a valid tool was designed to identify the factors affecting the distribution of hospitals' intensive care beds. This tool consists of 6 dimensions: demographic, geographic, economic, sociopolitical, organizational, and constructional.
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Despite the importance of perceived barriers against self-care in diabetic patients, the role of this factor is rarely addressed in the improvement of self-care behaviors of Iranian patients. The lack of appropriate instruments that fit demographic properties of Iranian society is one reason. The aim of this study was to develop and validate the scale of perceived barriers to self-care in patients with type 2 diabetes mellitus.This cross-sectional study conducted on 400 patients with type 2 diabetes who were covered by the health centers in Isfahan (Iran) in 2015. A 22-item, researcher-made instrument was designed; the face and content validities of the instrument were examined through obtaining the opinions of an expert panel before administering the instrument in the study. Also, the exploratory factor analysis was used to investigate the instrument's validity. Cronbach's alpha was employed to measure its internal consistency (reliability). To examine the validity of the final scale, the mean scores of perceived barriers in patients with appropriate and inappropriate self-care behaviors were compared.The research sample was comprised of 240 women (60%) and 160 men (40%). The mean value of the content validity index was 0.84. The results of factor analysis confirmed the validity of the 11 items and 3 factors of the developed scale. The factor loading ranged from 0.46 to 0.78. These three factors together explained 40.28% of the total variance. The overall reliability coefficient of the instrument was 0.79, ranging from 0.82 to 0.93 for three factors.According to the results, the developed scale was a valid and reliable instrument for examining the barriers perceived by the patients. The findings of this research can help health policy makers in planning to facilitate the self-care behaviors as the most vital factor in diabetes control.
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Likert scales are useful in social science and attitude research projects. The General Self-Efficacy Exam is a test used to determine whether factors in educational settings affect participant’s learning self-efficacy. The original instrument had 10 efficacy items and used a 4-point Likert scale. The Cronbach’s alphas for the original test ranged from 0.76 to 0.90. A 5-item Likert scale was created from this instrument by first adding a “3 = neutral/undecided” option and also by adding five negatively-worded items to the instrument. The instrument was piloted with 20 participants. The Cronbach’s alpha for this pilot study was 0.87. The instrument was subsequently used in a large research study, and the Cronbach’s alpha was found to be 0.88. This yielded an instrument that showed strong internal consistency.
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Background: The needs and demands of patients as one of the pillars of marketing in the health field require the right tools to identify consumers’ requests. Objectives: This study was conducted to develop a tool to evaluate services utilization behavior by type 2 diabetics in health centers based on a social marketing model (ie, 7 Ps). Methods: This study was conducted in two main stages. The first stage was performed with the aim of the initial design of the tool (ie, a questionnaire) through a literature review and professionals’ opinions. The second stage was performed to confirm the validity and reliability of the prepared questionnaire in the previous stage through calculating the impact score, content validity index (CVI), content validity ratio (CVR), and Cronbach’s alpha coefficient. The study participants included 8 academic and executive experts in the field of health and diabetes, 30 diabetic patients to calculate the impact score, and 50 patients with diabetes to calculate the Cronbach’s alpha through test-retest. The data were analyzed using SPSS software (version 18). Results: According to the results of the first stage of the study, a questionnaire with 46 items was designed. After determining the formal and content validity quantitatively and qualitatively, 8 items were deleted, and a questionnaire with 38 items was provided. Finally, the validity and reliability of the instrument were confirmed (CVI = 0.91; CVR = 0.92; intraclass correlation coefficient = 0.89; Cronbach’s alpha = 0.92). Conclusions: This questionnaire with confirmed validity and reliability helps analyze the diabetics’ behavior and specifies the reasons for the acceptance or rejection of the services of the diabetes unit by patients. Therefore, it can be used in health centers providing services for diabetics.
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The aim of the study was to develop and psychometrically test the Nurse-Patient Mutuality in Chronic Illness (NPM-CI) scale in two versions, one for nurses and one for patients.A multiphase methodological study was conducted. In the first phase, a qualitative investigation was conducted through interviews and an analysis of the content; inductively, the items of two instruments were generated, one for nurses and one for patients. In the second phase, the content and face validity were assessed through the expert consensus method. In the third phase, exploratory factor analysis (EFA), Cronbach's alpha test, intraclass correlation and Pearson correlation coefficients were conducted to estimate construct, criterion validity and instrument reliability. For each phase, the sample included nurses and patients recruited from a large hospital in Northern Italy. Data collection was conducted between June and September 2021.Nurse and patient versions of the NPM-CI scale were developed. Two rounds of consensus reduced the items from 39 to 20; content validity index ranged between 0.78 and 1, content validity ratio was 0.94. Face validity indicated clarity and comprehensibility of the items. EFA identified three latent factors for both the scales. Internal consistency was satisfactory, with Cronbach's alphas ranging between .80 and .90. Test-retest stability was suggested, with an intraclass correlation coefficient of .96 (nurse scale) and .97 (patient scale). Predictive validity was established, with a Pearson correlation coefficient of .43 (nurse scale) and 0.55 (patient scale) between the mutuality scales and satisfaction in providing and receiving care.The results suggest that the NPM-CI scales are sufficiently valid and reliable for the clinical practice among chronic illness patients and the nurses caring for them. A more in-depth exploration of this construct in the context of nursing and patient outcomes is warranted.Patients were involved in all study phases.Mutuality is fundamental in the relationship between nurse and patient, based on trust, equality, reciprocity, and mutual respect. The NPM-CI scale was developed and psychometric estimated through a multiphase study in both nurse and patient versions. The NPM-CI scale measures the factors of 'developing and going beyond', 'being the point of reference' and 'deciding and sharing care'. The NPM-CI scale allows us to measure mutuality in clinical practice and research. Expected outcomes and influencing factors for patients and nurses could be associated.
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Objective To assess the psychometric properties of the Thai version of the Scale for the Assessment of Positive Symptoms (SAPS-Thai). Methods Content validity was evaluated by four psychiatrists who rated the SAPS-Thai, and the content validity indexes (CVI) were also analyzed. Known-group validity was assessed by comparing the SAPS-Thai score among thirty outpatients and ten inpatients with schizophrenia. Internal consistency was calculated using the Cronbach's coefficient alpha. Results SAPS-Thai has excellent content validity, with an average-CVI of 0.92. The inpatient group had a significant higher score for both the global SAPS-Thai scores [7.4 (1.95) vs. 1.93 (1.59), p < 0.001] and total SAPS-Thai scores [21.2 (11.8) vs. 3.67 (2.87), p < 0.001] indicating good known-group validity. SAPS-Thai had a good internal consistency with a Cronbach's alpha of 0.87. Discussion SAPS-Thai provides a comprehensive measurement of positive symptoms and indicated content and known-group validity and a satisfactory level of internal consistency reliability.
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