scholarly journals The client satisfaction with device: a Rasch validation of the Arabic version in patients with upper and lower limb amputation

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Hadeel R. Bakhsh ◽  
Nilüfer Kablan ◽  
Walaa Alammar ◽  
Yaşar Tatar ◽  
Giorgio Ferriero
Keyword(s):  
Client Satisfaction ◽  
Item Difficulty ◽  
Principal Component ◽  
Limb Amputation ◽  
Convenience Sample ◽  
Reliability Indices ◽  
Arabic Speakers ◽  
Item Fit ◽  
Item Functioning ◽  
Local Item Dependency

Abstract Background The Client Satisfaction with Devices (CSD) module of the Orthotics and Prosthetics Users’ Survey is an extensively used questionnaire that measures patients’ satisfaction with orthosis and prosthesis. However, the validated version for Arabic speakers (CSD-Ar) is only applicable for orthosis users. Objectives The aim of this study was to evaluate the psychometric proprieties of the CSD-Ar for prosthetics users. Methods The study used a convenience sample of prosthesis users from Saudi Arabia and Turkey (N = 183), who completed the CSD-Ar. The collected data were analysed using Rasch analysis to evaluate item fit, reliability indices, item difficulty, local item dependency, and differential item functioning (DIF) using WINSTEPS version 4.6.1. Results Based on the analysis, the four-response Likert-scale was acceptable, as shown by the category functioning test, All eight items did achieve a fit to the Rasch Model [(infit) and (outfit) mean-square 0.75 to 1.3]. Person separation reliability was 0.76, and item separation reliability was 0.94. A principal component analysis (PCA) showed satisfactory unidimensionality and no local item dependency. The DIF analysis showed no notable dependency among items on participant characteristics in terms of age, gender, duration of use, country, and level of amputation. Conclusion This study contributes to the confidence of using CSD-Ar to evaluate users’ satisfaction with different prostheses, affirming the need for further refinement of the quality of the outcome measure.

scholarly journals Impact of Event Scale-6 (IES-6) for U.S. Adults Who Experienced the COVID-19 Pandemic

2021 ◽  
Author(s):  
Jiin Jeong ◽  
Ah-Ram Kim ◽  
Claudia Hilton ◽  
Ickpyo Hong
Keyword(s):  
Rating Scale ◽  
Item Difficulty ◽  
Principal Component ◽  
The United States ◽  
Rapid Identification ◽  
Post Traumatic Stress ◽  
Impact Of Event Scale ◽  
Event Scale ◽  
Item Fit ◽  
The Impact

Abstract Background: Post-traumatic stress disorder (PTSD) is a mental illness caused by traumatic events, such as the COVID-19 pandemic. Accurate diagnosis of this disorder is critical to establish effective intervention approaches. The Impact of Event Scale-6 (IES-6) is widely used for PTSD screening, but there has been no research on its psychometric properties with individuals who experienced the COVID-19 pandemic.Methods: A random sample of 600 participants were randomly selected from a COVID-19 survey database (n = 6,391). Rasch analysis was conducted to examine item fit, rating scale structure, construct validity, differential item functioning (DIF), and precision of the IES-6. Results: The principal component analysis of Rasch residuals (54.1% of the raw variance explained) and the average of residual correlations (average r = .19) supported the unidimensionality structure in the IES-6. The rating scale was suitable, and the item difficulty hierarchy was logical. The item fit and the DIF contrast were acceptable, except for item 5. The IES-6’s person reliability was .76, which was also an acceptable level.Conclusions: This study showed that the IES-6 has acceptable item-level psychometrics for screening PTSD in adults in the United States for individuals who have experienced the COVID-19 pandemic. The findings suggested that the IES-6 would be useful for the rapid identification of PTSD and allow clinicians to quickly provide interventions for people with the disorder and their families.

scholarly journals Measuring Everyday Creativity: A Rasch Model Analysis of the Biographical Inventory of Creative Behaviors (BICB) Scale

2020 ◽  
Author(s):  
Paul Silvia ◽  
Rebekah Rodriguez ◽  
Roger Beaty ◽  
Emily Frith ◽  
James C. Kaufman ◽  
...  
Keyword(s):  
Rasch Model ◽  
Item Difficulty ◽  
Recursive Partitioning ◽  
Good Evidence ◽  
Self Report ◽  
Difficulty Level ◽  
Item Fit ◽  
Item Functioning ◽  
Everyday Creativity ◽  
Gender Based

Research on everyday creativity—the “little c” creative activities people do in their everyday lives—commonly uses self-report scales to assess people’s engagement in different activities. The present research presents a detailed psychometric analysis of the Biographical Inventory of Creative Behaviors (BICB), a 34-item yes/no checklist of common creative activities that has become one of the most popular self-report measures of everyday creative behaviors. Based on a sample of 2,359 adults, the reliability, dimensionality, item fit, item difficulty, and test information were evaluated from a Rasch model perspective. Overall, the BICB shows good evidence for score reliability and appears essentially unidimensional; a small cluster of misfitting and locally dependent items were flagged for impairing unidimensionality. The items’ difficulty level was generally moderate and suitable for the scale’s intended populations and purposes. Differential item functioning (DIF) based on gender and age, estimated via Rasch tree recursive partitioning methods, found notable gender-based DIF (generally reflecting culturally gendered qualities of some creative activities) but little age-based DIF. Taken together, the BICB has many psychometric strengths. Some opportunities for future scale refinement are discussed.

scholarly journals Self-Care Instruments to Measure Nutrition Practices in Children and Parents: Psychometric Analysis

Nutrients ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 2242
Author(s):  
Lisa R. Pawloski ◽  
Jean B. Moore ◽  
Patricia Treffinger ◽  
Heibatollah Baghi ◽  
Kathleen Gaffney ◽  
...  
Keyword(s):  
Self Care ◽  
Principal Component ◽  
Nutrition Intervention ◽  
Validity And Reliability ◽  
Measurement Instruments ◽  
Convenience Sample ◽  
Nutrition Behavior ◽  
Nutrition Practices ◽  
Children And Parents ◽  
Orem's Theory

The purposes of this study were to evaluate the psychometric properties of English and Spanish instruments that measure the nutrition behavior and practices of children and their parents. Orem’s self-care deficit nursing theory was used in this methodological study. A convenience sample of 333 children and 262 mothers participated from two schools in Washington, D.C. and two schools in Santiago, Chile. Principal component analysis indicated three component per instrument corresponding to Orem’s Theory of operations demonstrating construct validity of the instrument. The study findings showed evidence for validity and reliability of the English and Spanish versions and indicated that the instruments appropriately represented Orem’s operations. The results have implications for the development of health behavior measurement instruments that are valid, reliable, designed for children, culturally appropriate, and efficient. Measuring the nutrition behavior of children and parents is critical for determining the effectiveness of nutrition intervention programs. Furthermore, instruments are needed so that researchers can compare corresponding child and parent behaviors or compare behaviors across cultures.

scholarly journals COVID-Q: validation of the first COVID-19 questionnaire based on patient-rated symptom gravity

2021 ◽  
Author(s):  
Giacomo Spinato ◽  
Cristoforo Fabbris ◽  
Federica Conte ◽  
Anna Menegaldo ◽  
Leonardo Franz ◽  
...  
Keyword(s):  
Comprehensive Evaluation ◽  
Principal Component ◽  
Symptom Assessment ◽  
Parallel Analysis ◽  
Nasopharyngeal Swab ◽  
Item Fit ◽  
Irt Models ◽  
Clinical Conditions ◽  
Negative Controls ◽  
Multiple Symptoms

Objectives The aim of the present study was to develop and validate the CoronaVirus Disease 2019 (COVID19) Questionnaire (COVIDQ), a novel symptom questionnaire specific for COVID19 patients, to provide a comprehensive evaluation which may be helpful for physicians. A secondary goal of the present study was to evaluate the performance of the COVIDQ in identifying subjects at higher risk of being tested positive for COVID19. Material and methods Consecutive not hospitalized adults who underwent nasopharyngeal and throat swab for severe acute respiratory syndrome coronavirus 2 (SARSCoV2) detection at Treviso Hospital in March 2020, were enrolled. Subjects were divided into positive (cases) and negative (controls) in equal number. All of them gave consent and answered the COVIDQ. Patients not able to answer the COVIDQ due to clinical conditions were excluded. Parallel Analysis and Principal Component Analysis were used to identify clusters of items measuring the same dimension. The Item Response Theory (IRT) based analyses evaluated the functioning of item categories, the presence of clusters of local dependence among items, item fit within the model and model fit to the data. Results Answers obtained from 230 COVID19 cases (113 males, and 117 females; mean age 55 years, range 20 to 99 years) and 230 controls (61 males, and 169 females; mean age 46 years, range 21 to 89) were analyzed. Parallel analysis led to the extraction of six components, which corresponded to as many clinical presentation patterns: asthenia, influenza symptoms, ear and nose symptoms, breathing issues, throat symptoms, and anosmia/ageusia. The final IRT models retained 27 items as significant for symptom assessment. The total score on the questionnaire was significantly associated with positivity to the molecular SARSCoV2 test: subjects with multiple symptoms were significantly more likely to be affected by COVID19 (p < .001). Older age and male gender also represented risk factors. Presence of breathing issues and anosmia/ageusia were significantly related to positivity to SARSCoV2 (p < 0.001). None of the examined comorbidities had a significant association with COVID19 diagnosis. Conclusion According to the analyses, COVIDQ could be validated since the aspects it evaluated were overall significantly related to SARSCoV2 infection. The application of the novel COVIDQ to everyday clinical practice may help identifying subjects who are likely to be affected by COVID19 and address them to a nasopharyngeal swab in order to achieve an early diagnosis.

scholarly journals Validation of the Spanish adaptation of the School Atitude Assessment Survey-Revised using multidimensional Rasch analysis

2016 ◽  
Vol 33 (1) ◽  
pp. 74 ◽  
Author(s):  
Alejandro Veas ◽  
Juan Luis Castejón ◽  
Raquel Gilar ◽  
Pablo Miñano
Keyword(s):  
Rasch Model ◽  
Rasch Analysis ◽  
Rating Scale ◽  
Item Difficulty ◽  
Classical Test Theory ◽  
Latent Trait ◽  
Principal Component ◽  
Analysis Data ◽  
Test Theory ◽  
Assessment Survey

<p>The School Attitude Assessment Survey-Revised (SAAS-R) was developed by McCoach &amp; Siegle (2003b) and validated in Spain by Author (2014) using Classical Test Theory. The objective of the current research is to validate SAAS-R using multidimensional Rasch analysis. Data were collected from 1398 students attending different high schools. Principal Component Analysis supported the multidimensional SAAS-R. The item difficulty and person ability were calibrated along the same latent trait scale. 10 items were removed from the scale due to misfit with the Rasch model. Differential Item Functioning revealed no significant differences across gender for the remaining 25 items. The 7-category rating scale structure did not function well, and the subscale goal valuation obtained low reliability values. The multidimensional Rasch model supported 25 item-scale SAAS-R measures from five latent factors. Therefore, the advantages of multidimensional Rasch analysis are demonstrated in this study.</p>

A Validation of Servant Leadership Scale on Multinational Sample

2020 ◽  
pp. 003329412095724 ◽  
Author(s):  
Ahmet Gocen ◽  
Sedat Sen
Keyword(s):  
Public Schools ◽  
Servant Leadership ◽  
Rating Scale ◽  
Scale Model ◽  
Business Organizations ◽  
Related Data ◽  
Item Fit ◽  
Item Functioning ◽  
The One ◽  
Item Item

Servant leadership has been gaining attention from all types of organizations, whether it be business organizations or public schools. With the increase of studies on the servanthood characteristics of organizational leaders, various scales of servant leadership were used to examine servant leadership behaviors, perceptions, and attitudes in different organizations. In line with the increasing interest on servant leadership, the purpose of the study was aimed at characterizing the Servant Leadership (SL) scale psychometrically through Confirmatory Factor Analysis (CFA) and Rasch analysis. The related data were collected from 461 teachers across several countries. The one-factor structure of the SL was confirmed in CFA along with the Rasch Rating Scale model, with the analyses of rating scale diagnosis, item fit assessment, reliability, unidimensionality, local independence, and differential item functioning (DIF). High person separation and reliability statistics supported the consistency of the SL scores. Only one item (Item 7) did not fit the Rasch model, and another item (Item 1) showed DIF to be in favor of females. Overall CFA and the Rasch models provided enough evidence for the seven-item SL scale.

scholarly journals Does the Order of Item Difficulty of the Addenbrooke's Cognitive Examination Add Anything to Subdomain Scores in the Clinical Assessment of Dementia

2015 ◽  
Vol 5 (1) ◽  
pp. 155-169 ◽  
Author(s):  
Sarah McGrory ◽  
John M. Starr ◽  
Susan D. Shenkin ◽  
Elizabeth J. Austin ◽  
John R. Hodges
Keyword(s):  
Factor Analysis ◽  
Factor Model ◽  
Item Difficulty ◽  
Principal Component ◽  
Scaling Analysis ◽  
Degenerative Disorders ◽  
Two Samples ◽  
Confirmatory Factor ◽  
The One ◽  
Addenbrooke’S Cognitive Examination

Background: The Addenbrooke's Cognitive Examination (ACE) is used to measure cognition across a range of domains in dementia. Identifying the order in which cognitive decline occurs across items, and whether this varies between dementia aetiologies could add more information to subdomain scores. Method: ACE-Revised data from 350 patients were split into three groups: Alzheimer's type (n = 131), predominantly frontal (n = 119) and other frontotemporal lobe degenerative disorders (n = 100). Results of factor analysis and Mokken scaling analysis were compared. Results: Principal component analysis revealed one factor for each group. Confirmatory factor analysis found that the one-factor model fit two samples poorly. Mokken analyses revealed different item ordering in terms of difficulty for each group. Conclusion: The different patterns for each diagnostic group could aid in the separation of these different types of dementia.

Model Diagnostics for Bayesian Networks

2006 ◽  
Vol 31 (1) ◽  
pp. 1-33 ◽  
Author(s):  
Sandip Sinharay
Keyword(s):  
Model Checking ◽  
Bayesian Networks ◽  
Real Data ◽  
Diagnostic Tools ◽  
Model Diagnostics ◽  
Posterior Predictive Model Checking ◽  
Item Fit ◽  
Item Functioning ◽  
Data Application ◽  
Educational Assessments

Bayesian networks are frequently used in educational assessments primarily for learning about students’ knowledge and skills. There is a lack of works on assessing fit of Bayesian networks. This article employs the posterior predictive model checking method, a popular Bayesian model checking tool, to assess fit of simple Bayesian networks. A number of aspects of model fit, those of usual interest to practitioners, are assessed using various diagnostic tools. This article suggests a direct data display for assessing overall fit, suggests several diagnostics for assessing item fit, suggests a graphical approach to examine if the model can explain the association among the items, and suggests a version of the Mantel–Haenszel statistic for assessing differential item functioning. Limited simulation studies and a real data application demonstrate the effectiveness of the suggested model diagnostics.

Development and validation of Nurses’ Moral Courage Scale

2018 ◽  
Vol 26 (7-8) ◽  
pp. 2438-2455 ◽  
Author(s):  
Olivia Numminen ◽  
Jouko Katajisto ◽  
Helena Leino-Kilpi
Keyword(s):  
Internal Consistency ◽  
Reliability And Validity ◽  
Principal Component ◽  
Moral Courage ◽  
Face Validity ◽  
University Hospital ◽  
Moral Competence ◽  
Good Reliability ◽  
Cross Sectional ◽  
Convenience Sample

Background: Moral courage is required at all levels of nursing. However, there is a need for development of instruments to measure nurses’ moral courage. Objectives: The objective of this study is to develop a scale to measure nurses’ self-assessed moral courage, to evaluate the scale’s psychometric properties, and to briefly describe the current level of nurses’ self-assessed moral courage and associated socio-demographic factors. Research design: In this methodological study, non-experimental, cross-sectional exploratory design was applied. The data were collected using Nurses’ Moral Courage Scale and analysed statistically. Participants and research context: The data were collected from a convenience sample of 482 nurses from four different clinical fields in a major university hospital in Finland for the final testing of the scale. The pilot comprised a convenience sample of 129 nurses. Ethical considerations: The study followed good scientific inquiry guidelines. Ethical approval was obtained from the university ethics committee and permission to conduct the study from the participating hospital. Findings: Psychometric evaluation showed that the 4-sub-scale, 21-item Nurses’ Moral Courage Scale demonstrates good reliability and validity at its current state of development showing a good level of internal consistency for a new scale, the internal consistency values ranging from 0.73 to 0.82 for sub-scales and 0.93 for the total scale, thus well exceeding the recommended Cronbach’s alpha value of >0.7. Principal component analysis and confirmatory factor analysis supported the theoretical construct of Nurses’ Moral Courage Scale. Face validity and expert panel assessments markedly contributed to the relevance of items in establishing content validity. Discussion and conclusion: Nurses’ Moral Courage Scale provides a new generic instrument intended for measuring nurses’ self-assessed moral courage. Recognizing the importance of moral courage as a part of nurses’ moral competence and its assessment offers possibilities to develop interventions and educational programs for enhancement of moral courage. Research should focus on further validation measures of Nurses’ Moral Courage Scale in international contexts.

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