Validity of the Novel Radiological Classification System of the Distal Femur

2021 ◽  
Author(s):  
Mustafa Akkaya ◽  
Mehmet Emin Simsek ◽  
Serhat Akcaalan ◽  
Ceyhun Caglar ◽  
Safa Gursoy ◽  
...  
Keyword(s):  
Knee Arthroplasty ◽  
Classification System ◽  
Interobserver Agreement ◽  
Distal Femur ◽  
Intraobserver Agreement ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Percent Agreement ◽  
Radiological Classification

Abstract Objective Aseptic loosening (AL) is among the most important causes of failure after total knee arthroplasty (TKA). However, while there are numerous underlying causes of AL, the morphometry of the distal femur and intramedullary canal has not been sufficiently demonstrated. This study aimed to show the interobserver and intraobserver reliability and validity of the Citak classification, which has been recently defined according to the morphometry of the distal femur and provides a risk factor definition for AL. Materials and Methods A total of 200 patients whose standardized anteroposterior (AP) and lateral images of the knee joint were obtained between October 2019 and April 2020 were retrospectively evaluated in this study. Patients with a history of extra-articular deformity and knee surgery were excluded from the study. For AL, morphologies of the distal femur were identified by two observers using the new radiological classification system of the distal femur. Mean pairwise Cronbach’s alpha coefficient was used to assess the intra- and interobserver agreement of the classification. Results There was excellent interobserver agreement for the 20 cm proximal and 2 cm proximal to the lateral joint line (PLJL) and adductor tubercle (PAD), respectively. The mean Cronbach’s alpha coefficient was 0.96 (range 0.764–0.944) for the PAD and 0.98 (range 0.734–0.929) for the PLJL. There was also an excellent intraobserver agreement, with 93% average pairwise percent agreement for the index group and 95.5% average pairwise percent agreement for the anatomical classification group. Conclusions The level of inter- and intraobserver agreement for the morphology of the distal femur was excellent in the new radiological classification system, which was shown to be beneficial in the planning of revision knee arthroplasty for AL. However, there is a need for further studies in order to make a correlation of the classification with specific intraoperative findings.

A novel radiological classification system of the distal femur

2021 ◽  
Author(s):  
Mustafa Citak ◽  
Ali Levent ◽  
Eduardo M. Suero ◽  
Kristof Rademacher ◽  
Sophia-Marlene Busch ◽  
...  
Keyword(s):  
Classification System ◽  
Distal Femur ◽  
Radiological Classification

scholarly journals Polish Adaptation of the Italian Spine Youth Quality of Life Questionnaire

2021 ◽  
Vol 10 (10) ◽  
pp. 2081
Author(s):  
Edyta Kinel ◽  
Krzysztof Korbel ◽  
Piotr Janusz ◽  
Mateusz Kozinoga ◽  
Dariusz Czaprowski ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Internal Consistency ◽  
Spinal Deformity ◽  
Cultural Adaptation ◽  
Life Questionnaire ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Quality Of Life Questionnaire ◽  
Cronbach's Alpha

The study aimed to carry on the process of the cultural adaptation of the Italian Spine Youth Quality of Life Questionnaire (ISYQOL) into Polish (ISYQOL-PL). The a priori hypothesis was: the ISYQOL-PL questionnaire is reliable and appropriate for adolescents with a spinal deformity. Fifty-six adolescents (mean age 13.8 ± 1.9) with idiopathic scoliosis (AIS) with a mean Cobb angle 29.1 (±9.7) and two with Scheuermann juvenile kyphosis (SJK) with a kyphosis angle 67.5 (±17.7) degrees were enrolled. All patients had been wearing a corrective TLSO brace for an average duration of 2.3 (±1.8) years. The Institutional Review Board approved the study. The cross-cultural adaptation of the ISYQOL-PL was performed following the guidelines set up by the International Quality of Life Assessment Project. The reliability was assessed using internal consistency (the Cronbach’s alpha coefficient) and test–retest reliability (intraclass correlation coefficient ICC2.1, CI = 95%); moreover, floor and ceiling effects were calculated. The internal consistency was satisfactory (Cronbach’s alpha coefficient 0.8). The test–retest revealed high reliability with the value of ICC2.1 for the entire group 0.90, CI (0.84 to 0.94). There was neither floor nor ceiling effect for the ISYQOL-PL overall score. The ISYQOL-PL is reliable and can be used in adolescents with spinal deformity.

scholarly journals Adaptação transcultural do questionário EFFECT para português brasileiro

2021 ◽  
Vol 45 (3) ◽  
Author(s):  
Lourrany Borges Costa ◽  
Shamyr Sulyvan de Castro ◽  
Diovana Ximenes Cavalcante Dourado ◽  
Bruna Soares Praxedes ◽  
Thayná Custódio Mota ◽  
...  
Keyword(s):  
Teacher Evaluation ◽  
Internal Consistency ◽  
Clinical Teaching ◽  
Clinical Medicine ◽  
Brazilian Portuguese ◽  
Expert Committee ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Back Translation

Abstract: Introduction: Clinical teaching is based on a real work environment, in professional practice settings, such as health services and units, under the supervision of the preceptor. Providing medical teachers with an assessment of their teaching skills is a powerful tool for improving clinical learning for students in training. In this context, the EFFECT (Evaluation and Feedback for Effective Clinical Teaching) questionnaire was developed by Dutch researchers in 2012 for teacher evaluation, being validated based on the literature about medical teaching in the workplace and incorporates the skills of the Canadian competency-based medical curriculum. Objective: To translate and cross-culturally adapt into Brazilian Portuguese and to validate the EFFECT questionnaire for teacher evaluation by Medical students. Method: Cross-cultural adaptation with the following steps: initial translation of the English version, synthesis of translated versions, back-translation, creation of a consensual version in Brazilian Portuguese, with adaptation, review, and analysis of content validity by an expert committee, pre-test with retrospective clarification interview, and reliability analysis by factorial analysis and internal consistency test (Cronbach’s alpha coefficient). Result: In the translation and back-translation stages, the disagreements were related to the use of synonyms and none of the items were modified in terms of their understanding, but in terms of adaptation into the Brazilian context. The evaluation of the expert committee showed the versions maintained the semantic and idiomatic equivalences of the content. Eighty-nine students participated in the pre-test. The internal consistency of the EFFECT questionnaire in Brazilian Portuguese was excellent for all domains, with Cronbach’s alpha coefficient ranging from 0.82 to 0.94. Conclusion: The translated and adapted version of the EFFECT questionnaire into Brazilian Portuguese is equivalent to the original instrument and has evidence of high validity and reliability, being able to constitute a national tool to evaluate the efficiency of clinical medicine teaching.

scholarly journals THE HOMOGENEITY OF SCALES OF INTELLECTUAL ABILITIES: PSYCHOMETRIC ANALYSIS

2021 ◽  
pp. 144-169
Author(s):  
Anatoly N. Krichevets ◽  
Alexey A. Korneev ◽  
K.V. Sugonyaev
Keyword(s):  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Detailed Analysis ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Testing Procedures ◽  
Cronbach's Alpha ◽  
Psychometric Instruments ◽  
Confirmatory Factor ◽  
Item Level

Relevance. Nowadays the researchers commonly use a limited set of standard procedures and statistical coefficients when develop psychometric instruments and investigate their structure. The routine using of such procedures without taking into account the specific features of the psychometric scales can lead to incomplete or even inadequate results. In this context detailed consideration of the structure of psychometric instruments seems to be important and it may demand various non-standard ways of statistical analysis. Objectives. To conduct detailed analysis of the results of two intelligent subtests at the item level and to assess the sufficiency and adequacy of using standard methods for estimation of reliability and structural validity for these subtests. Methods. We analyze the data collected in intelligence testing of a large sample of respondents (11335 young adults). The respondents passed the KR-3 battery. In this study we examine in detail the structure of the subtests “Syllogisms” and “Analogies”. Specifically, we estimated the reliability of the scales by the Cronbach’s alpha coefficient, and the structure at the item level using the confirmatory factor analysis. Results and conclusions. Estimation of the reliability of the scales by Cronbach’s alpha coefficient showed importance of taking into account the time limitation, which is commonly used in intelligence tests. On the other hand, a detailed analysis of each subtest items made it possible to find out an additional factor which was not originally proposed in the factor structure. This is factor of higher-order abilities of abstract analysis, whilst the subtest originally aimed at estimation of the special abilities. Confirmatory factor analysis showed improvement of fit when this factor was added. The results allow to conclude that the researcher may miss the important properties of scales if not making a detailed analysis of testing procedures and the structure of subtest at the item level, and so may draw incomplete or inadequate conclusions about their psychometric properties

scholarly journals Polish adaptation of the Iowa Satisfaction with Anaesthesia Scale

2016 ◽  
Vol 15 (4) ◽  
pp. 28-34 ◽  
Author(s):  
Danuta Dyk ◽  
Dorota Ozga ◽  
Aleksandra Gutysz-Wojnicka ◽  
Bogumił Lewandowski ◽  
Marek Wojtaszek
Keyword(s):  
Maxillofacial Surgery ◽  
Multiple Choice Questions ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Clinical Ward ◽  
Polish Version ◽  
Continue Research ◽  
Three Stages ◽  
Polish Adaptation

Abstract Introduction. The paper presents the adaptation of the Iowa Satisfaction with Anesthesia Scale to the conditions in Polish hospitals.Methods. The process of cultural adaptation of the Iowa Satisfaction with Anesthesia Scale was divided into three stages. The first stage was to formulate the Polish version of the ISAS. Secondly, the scale was used in the group of patients who were diagnosed with a maxillofacial injury and underwent surgical procedure. The final stage evaluated the psychometric features of the Polish version of the ISAS.Results. 195 questionnaires were completed correctly and they were subject to further analysis. The questionnaires were collected from patients residing at the Maxillofacial Surgery Clinical Ward who were operated under a general anaesthesia due to a maxillofacial trauma. The average result of the satisfaction with anaesthesia in a studied group was 0.77 (scale from -3 to +3) M=2, SD=2.41. The Cronbach’s alpha coefficient calculated for 11 multiple choice questions was 0.598. It would be possible to increase the Cronbach’s alpha coefficient if question no. 1 (I vomited or felt nauseous) was eliminated from the test (maximum 0.601). Every item on the scale had significant influence on the general result (p=0.0001).Conclusions. Polish version of the Iowa Satisfaction with Anesthesia Scale meets the criteria of the psychometric equivalence with the original version. It is necessary to continue research using Polish version of the ISAS to provide a constant verification of reliability and accuracy of the research tool.

scholarly journals Evaluating Reliability of Theory of Planned Behaviour Questionnaire for Withdrawal of Divorce Petition

2018 ◽  
Vol 6 (8) ◽  
pp. 1512-1516 ◽  
Author(s):  
Nahid Ardian ◽  
Seyed Alireza Afshani ◽  
Mohammad Ali Morowatisharifabad ◽  
Seyed Saeid Mazloomi Mahmoodabad ◽  
Ali Akbar Vaezi ◽  
...  
Keyword(s):  
Qualitative Study ◽  
Content Validity ◽  
Theory Of Planned Behaviour ◽  
Validity And Reliability ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Planned Behaviour ◽  
Cronbach's Alpha ◽  
The Face ◽  
Suitable Framework

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.

scholarly journals Validation of the Spanish Version of Newcastle Stroke-Specific Quality of Life Measure (NEWSQOL)

2020 ◽  
Vol 17 (12) ◽  
pp. 4237
Author(s):  
Concepción Soto-Vidal ◽  
Soraya Pacheco-da-Costa ◽  
Victoria Calvo-Fuente ◽  
Sara Fernández-Guinea ◽  
Carlos González-Alted ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Construct Validity ◽  
Response Rate ◽  
Spanish Version ◽  
Psychometric Validation ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Life Measure ◽  
Cronbach's Alpha

Background: Stroke causes a wide variety of clinical manifestations that may have a negative impact on quality of life. Therefore, it is very important to use specific instruments for measuring quality of life in individuals who suffered a stroke. The aim of this study was to develop a psychometrically validated Spanish version of the Newcastle stroke-specific quality of life measure (NEWSQOL). Methods: A psychometric validation of the Spanish version of the NEWSQOL questionnaire was carried out in 159 patients. The reliability (intraclass correlation coefficient and Cronbach’s alpha coefficient), validity (factorial analysis and Spearman’s coefficient), feasibility (response rate), and the ceiling and floor effects were calculated. Results: Internal consistency showed that Cronbach’s alpha coefficient was 0.93. The test–retest reliability was high or excellent for all domains (range 0.71–0.97 p < 0.001). The response rate of the questionnaire was 100% and the average administration time was 20.5 (±7.2) min. No ceiling effect was detected and two domains (pain and vision) may have a significant potential for floor effect. Construct validity showed that all the variables are important enough to keep them all in the questionnaire. Concerning convergent construct validity, a high correlation was found with the Nottingham Health Profile, the Barthel Index, and the Modified Rankin Scale. Conclusion: The Spanish version of the NEWSQOL questionnaire is reliable, valid, and feasible to evaluate quality of life in the Spanish population.

scholarly journals Empathy in Undergraduate Medical Students of Bangladesh: Psychometric Analysis and Differences by Gender, Academic Year, and Specialty Preferences

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Asma Mostafa ◽  
Rozina Hoque ◽  
Mohammad Mostafa ◽  
Md. Mashud Rana ◽  
Faisal Mostafa
Keyword(s):  
Medical Students ◽  
Clinical Training ◽  
Medical Curriculum ◽  
Principal Component Factor Analysis ◽  
Validity And Reliability ◽  
Alpha Coefficient ◽  
Undergraduate Medical Students ◽  
Cronbach’S Alpha ◽  
Medical College ◽  
Cronbach's Alpha

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.

The Validation of the Coping and Adaptation Processing Scale Based on the Roy Adaptation Model

2014 ◽  
Vol 22 (3) ◽  
pp. 368-380 ◽  
Author(s):  
Muder Alkrisat ◽  
Vivien Dee
Keyword(s):  
Health Care Facilities ◽  
Roy Adaptation Model ◽  
Validity And Reliability ◽  
Alpha Coefficient ◽  
Cronbach’S Alpha ◽  
Cross Sectional Survey ◽  
Convenience Sample ◽  
Cronbach's Alpha ◽  
Confirmatory Factor ◽  
Adaptation Model

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.

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