scholarly journals 545 - Exploratory factor analysis of the Rowland Universal Dementia Assessment Scale.

2021 ◽  
Vol 33 (S1) ◽  
pp. 87-88
Author(s):  
J. Antonio Garcia-Casal ◽  
Natacha Coelho de Cunha Guimarães ◽  
Sofía Díaz Mosquera ◽  
María Alvarez Ariza ◽  
Raimundo Mateos Álvarez
Keyword(s):  
Factor Analysis ◽  
Construct Validity ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Principal Components ◽  
Principal Component ◽  
Assessment Scale ◽  
Cognitive Test ◽  
Five Factors ◽  
Bartlett’S Test

Background:Rowland Universal Dementia Assessment Scale (RUDAS) is a brief cognitive test, appropriate for people with minimum completed level of education and sensitive to multicultural contexts. It could be a good instrument for cognitive impairment (CI) screening in Primary Health Care (PHC). It comprises the following areas: recent memory, body orientation, praxis, executive functions and language.Research Objective:The objective of this study is to assess the construct validity of RUDAS analysing its internal consistency and factorial structure.Method:Internal consistency will be calculated using ordinal Cronbach’s α, which reflects the average inter-item correlation score and, as such, will increase when correlations between the items increase. Exploratory Factor Analysis will be used to arrange the variables in domains using principal components extraction. The factorial analysis will include the extraction of five factors reflecting the neuropsychological areas assessed by the test. The result will be rotated under Varimax procedure to ease interpretation.Exploratory factor analysis will be used to arrange the variables in domains using principal components extraction. The analysis will include Kaiser–Meyer–Olkin measure of sampling adequacy and Bartlett’s test of sphericity. Estimations will be based based on Pearson’s correlations between indicators using a principal component analysis and later replicated with a tetrachoric correlation matrix. The variance in the tetrachoric model will be analysed to indentify convergent iterations and their explicative power.Preliminary results of the ongoing study:RUDAS is being administered to 321 participants older than 65 years, from seven PHC physicians’ consultations in O Grove Health Center. The data collection will be finished by August 2021 and in this poster we will present the final results of the exploratory factor analysis.Conclusions:We expect that the results of the exploratory factor analysis will replicate the results of previous studies of construct validity of the test in which explanatory factor weights were between 0.57 and 0.82, and all were above 40%. Confirming that RUDAS has a strong factor construct with high factor weights and variance ratio, and 6-item model is appropriate for measurement will support its recommendation as a valid screening instrument for PHC.

scholarly journals Metacognitive Rating Scale: A Study Applying a Korean Translation to Individuals with Schizophrenia

2021 ◽  
Vol 18 (13) ◽  
pp. 6853
Author(s):  
Mihwa Han ◽  
Kyunghee Lee ◽  
Mijung Kim ◽  
Youngjin Heo ◽  
Hyunseok Choi
Keyword(s):  
Principal Component Analysis ◽  
Factor Analysis ◽  
Exploratory Factor Analysis ◽  
Mental Status ◽  
Rating Scale ◽  
Anger Expression ◽  
Principal Component ◽  
Negative Beliefs ◽  
Five Factors ◽  
Metacognitive Beliefs

Metacognition is a higher-level cognition of identifying one’s own mental status, beliefs, and intentions. This research comprised a survey of 184 people with schizophrenia to verify the reliability of the metacognitive rating scale (MCRS) with the revised and supplemented metacognitions questionnaire (MCQ) to measure the dysfunctional metacognitive beliefs of people with schizophrenia by adding the concepts of anger and anxiety. This study analyzed the data using principal component analysis and the varimax method for exploratory factor analysis. To examine the reliability of the extracted factors, Cronbach’s α was used. According to the results, reliability was ensured for five factors: positive beliefs about worry, negative beliefs about uncontrollability and danger of worry, cognitive confidence, need for control, and cognitive self-consciousness. The negative beliefs about uncontrollability and danger of worry and the need for control on anger expression, which were both added in this research, exhibited the highest correlation (r = 0.727). The results suggest that the MCRS is a reliable tool to measure the metacognition of people with schizophrenia.

scholarly journals Patients’ views on the implementation of artificial intelligence in radiology: development and validation of a standardized questionnaire

2019 ◽  
Vol 30 (2) ◽  
pp. 1033-1040 ◽  
Author(s):  
Yfke P. Ongena ◽  
Marieke Haan ◽  
Derya Yakar ◽  
Thomas C. Kwee
Keyword(s):  
Artificial Intelligence ◽  
Factor Analysis ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Latent Variables ◽  
Procedural Knowledge ◽  
Patient Questionnaire ◽  
Successful Implementation ◽  
Personal Interaction ◽  
Five Factors

Abstract Objectives The patients’ view on the implementation of artificial intelligence (AI) in radiology is still mainly unexplored territory. The aim of this article is to develop and validate a standardized patient questionnaire on the implementation of AI in radiology. Methods Six domains derived from a previous qualitative study were used to develop a questionnaire, and cognitive interviews were used as pretest method. One hundred fifty-five patients scheduled for CT, MRI, and/or conventional radiography filled out the questionnaire. To find underlying latent variables, we used exploratory factor analysis with principal axis factoring and oblique promax rotation. Internal consistency of the factors was measured with Cronbach’s alpha and composite reliability. Results The exploratory factor analysis revealed five factors on AI in radiology: (1) distrust and accountability (overall, patients were moderately negative on this subject), (2) procedural knowledge (patients generally indicated the need for their active engagement), (3) personal interaction (overall, patients preferred personal interaction), (4) efficiency (overall, patients were ambiguous on this subject), and (5) being informed (overall, scores on these items were not outspoken within this factor). Internal consistency was good for three factors (1, 2, and 3), and acceptable for two (4 and 5). Conclusions This study yielded a viable questionnaire to measure acceptance among patients of the implementation of AI in radiology. Additional data collection with confirmatory factor analysis may provide further refinement of the scale. Key Points • Although AI systems are increasingly developed, not much is known about patients’ views on AI in radiology. • Since it is important that newly developed questionnaires are adequately tested and validated, we did so for a questionnaire measuring patients’ views on AI in radiology, revealing five factors. • Successful implementation of AI in radiology requires assessment of social factors such as subjective norms towards the technology.

scholarly journals Application of exploratory factor analysis to assess fish consumption in a university community

2013 ◽  
Vol 33 (1) ◽  
pp. 99-106 ◽  
Author(s):  
Erika da Silva Maciel ◽  
Luciana Kimie Savay-da-Silva ◽  
Júlia Santos Vasconcelos ◽  
Juliana Antunes Galvão ◽  
Jaqueline Girnos Sonati ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Principal Components ◽  
Fish Consumption ◽  
Assessment Instrument ◽  
Multiple Choice Questions ◽  
Process Data ◽  
Good Internal Consistency ◽  
University Community

The objective of this research was to use the technique of Exploratory Factor Analysis (EFA) for the adequacy of a tool for the assessment of fish consumption and the characteristics involved in this process. Data were collected during a campaign to encourage fish consumption in Brazil with the voluntarily participation of members of a university community. An assessment instrument consisting of multiple-choice questions and a five-point Likert scale was designed and used to measure the importance of certain attributes that influence the choice and consumption of fish. This study sample was composed of of 224 individuals, the majority were women (65.6%). With regard to the frequency of fish consumption, 37.67% of the volunteers interviewed said they consume the product two or three times a month, and 29.6% once a week. The Exploratory Factor Analysis (EFA) was used to group the variables; the extraction was made using the principal components and the rotation using the Quartimax method. The results show clusters in two main constructs, quality and consumption with Cronbach Alpha coefficients of 0.75 and 0.69, respectively, indicating good internal consistency.

Structural validity and reliability of the return to work assessment scale among post stroke survivors

Work ◽  
2021 ◽  
pp. 1-11
Author(s):  
Peter. O. Ibikunle ◽  
Anthea Rhoda ◽  
Mario Smith
Keyword(s):  
Factor Analysis ◽  
Return To Work ◽  
Internal Consistency ◽  
Assessment Scale ◽  
Stroke Survivors ◽  
Validity And Reliability ◽  
Structural Validity ◽  
Bartlett’S Test ◽  
Work Assessment ◽  
Domain 3

BACKGROUND: Return to work (RTW) after injury or illness is a behavior influenced by physical, psychological and social factors. This study aims to determine the structural validity and reliability of a return to work assessment scale using internal consistency and factor analysis. METHOD: A cross sectional survey research design was adopted for this study involving 101 Post stroke survivors. The return to work assessment scale, which was developed by Ibikunle et al. in 2019, was subjected to structural validity and reliability. RESULT: The results reveal that 58 (57.4%) were males and 43 (42.2%) females with mean ages of 53.88±10.68 years. Internal consistency was high with a Cronbach’s alpha coefficient of 0.81 for Domain 1, 0.93 for Domain 2 and 0.76 for Domain 3.Test-retest reliability analysis gave an ICC of 0.85(p = 0.001) for Domain 1, Domain 2 an ICC of 0.91 (p = 0.001) and Domain 3 an ICC of 0.99 (p = 0.001). The Kaiser-Meyer-Olkin measure of sampling adequacy (KMO) value for Domain 1 was X2  = 0.63 and that of Bartlett’s test of sphericity value was significant (P = 0.000), Kaiser-Meyer-Olkin measure of sampling adequacy for Domain 2 was 0.84 and the Bartlett’s test of sphericity value was significant (P = 0.000), the Kaiser-Meyer-Olkin measure of sampling adequacy for Domain 3 was 0.66 while the Barlett’s test of sphericity was significant (p = 0.001). Therefore the factor analysis was appropriate. CONCLUSION: The return to work assessment scale is a good, internally consistent and reliable tool that has demonstrated good group and structural validity.

scholarly journals Propiedades psicométricas de la escala “International Fitness Scale” en adolescentes chilenos (Psychometric properties of the “International Fitness Scale” in Chilean youth)

Retos ◽  
2016 ◽  
pp. 23-27
Author(s):  
Pedro Rufino Olivares ◽  
Javier Garcia Rubio ◽  
Eugenio Merellano-Navarro
Keyword(s):  
Factor Analysis ◽  
Construct Validity ◽  
Physical Fitness ◽  
Psychometric Properties ◽  
Reliability Analysis ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Convergent Validity ◽  
Validity And Reliability ◽  
Fitness Assessment

Recientemente se ha desarrollado un instrumento que permite evaluar de forma indirecta la condición física, el International Fitness Scale. El objetivo de este estudio fue evaluar las propiedades psicométricas de validez y fiabilidad de la escala de condición física International Fitness Scale en una muestra de adolescentes chilenos. La muestra estuvo compuesta por 1000 jóvenes desde los 12 hasta los 18 años (48.8% mujeres) para el análisis de validez del instrumento. Una sub-muestra de 89 participantes (37.8% mujeres) se utilizó para los análisis de fiabilidad. La consistencia del instrumento se analizó mediante el coeficiente α de Cronbach, la validez de constructo a través del análisis factorial, la validez convergente mediante el método de grupos conocidos y la fiabilidad mediante el coeficiente Kappa ponderado. Los resultados mostraron la robustez de la escala utilizada, su validez y una moderada fiabilidad en esta población. El cuestionario International Fitness Scale es válido y fiable para su uso en población adolescente chilena, economizando los gastos en tiempo, material y personal para la medición de la condición física en jóvenes chilenos.Abstract. In recent years, an instrument, known as the International Fitness Scale, was developed in order to indirectly assess physical fitness. The aim of the present study was to analyze the psychometric properties of validity and reliability of the International Fitness Scale in a sample of Chilean adolescents. The sample selected for assessing the instrument’s validity was composed by 1,000 adolescents aged 12 to 18 (48.8% girls). With regard to reliability analysis, a sub-sample of 89 participants (37.8% girls) was employed. Internal consistency was assessed using Cronbach´s alpha. Exploratory factor analysis was carried out in order to measure the construct validity, while convergent validity was assessed applying the known groups method. Results showed that the scale is consistent and valid, presenting moderate reliability. The International Fitness Scale has been proved to be a valid and reliable tool for fitness assessment in Chilean adolescents. This instrument could help economizing equipment, time and personnel in the assessment of Physical Fitness in Chilean youth.

scholarly journals Reliability and Validity of Household Disaster Preparedness Index (HDPI)

2020 ◽  
Keyword(s):  
Factor Analysis ◽  
Construct Validity ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Content Validity ◽  
Disaster Preparedness ◽  
Reliability And Validity ◽  
Face Validity ◽  
Acceptable Range ◽  
Household Preparedness

Introduction: The preparedness of families for the disasters can set auspicious grounds for the preparedness of the whole society. In Iran health system, Household Disaster Preparedness Index (HDPI) that is composed of 15 items is applied for assessing the household preparedness in disasters. This study was conducted to investigate the reliability and validity of this index. Methods: In order to investigate the HDPI reliability, we two methods, namely internal consistency and stability determination, are. In order to investigate HDPI validity, we examined the face validity, content validity and construct validity. To do so, besides interviewing with the experts and family heads, 200 families were selected based on multistage cluster sampling method from amongst a study population that included the families in all the counties in Isfahan Province. Use has been made in content validity investigation of both qualitative and quantitative methods; and, in investigating the construct validity, exploratory factor analysis was the method of choice. Results: The amount of HDPI internal consistency was calculated 0.786 which is in an acceptable range. HDPI stability, as well, was computed 0.98 using the test-retest method which is also in an optimal level. Therefore, it can be stated that HDPI enjoys the required reliability. Investigation of HDPI face validity indicated that the families have problems in perceiving some of the items of this index. The experts presented suggestions for improving the HDPI content validity following the qualitative investigation of the content validity. In the investigation of the content validity ratio (CVR), all the items, except the ones numbered 1, 3 and 4 were in an acceptable range; however, the investigation of the content validity index (CVI) indicated that only the validity of the items numbered 12 and 13 was acceptable in terms of all the three scales of relevancy, clarity and simplicity. To determine the construct validity, we used exploratory factor analysis to extract five factors (subscales), namely reduction of vulnerability, planning for disasters, family empowerment, procurement of resources for disasters and specialized programs. The internal consistency of these subscales indicated that only the internal consistencies of the first and the second factors were in an acceptable range. Conclusion: The present study revealed that although HDPI was a reliable measure, it did not enjoy the required validity for assessing the household preparedness in disasters.

Developing a Bullying Scale for Use with University Students

2014 ◽  
Vol 42 (1) ◽  
pp. 81S-92S ◽  
Author(s):  
Nazan Doğruer ◽  
Hüseyin Yaratan
Keyword(s):  
Factor Analysis ◽  
Young Adults ◽  
University Students ◽  
Construct Validity ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Tertiary Level ◽  
Bullying Behaviors ◽  
Reliable Scale

Bullying is not a new topic to be researched but the consequences of bullying for university students is an area yet to be studied. Thus, in this study our aim was to develop a bullying scale for use with university students. In order to do this we categorized their bullying behaviors as physical, verbal, emotional, and cyber; and their bullying status as bully, victim, bully-victim, and bystander. The survey we developed to validate our scale was completed by volunteer participants individually. Exploratory factor analysis was done to determine construct validity of the scale. The internal consistency values were calculated for reliability. The resultant values showed that the developed scale can be accepted as a valid and reliable scale to be used for measuring both bully and victim behaviors among young adults studying at tertiary level.

scholarly journals On the Factor Structure of a Reading Comprehension Test

2011 ◽  
Vol 4 (2) ◽  
pp. 242 ◽  
Author(s):  
Mohammad Salehi
Keyword(s):  
Factor Analysis ◽  
Reading Comprehension ◽  
Construct Validity ◽  
Principal Components Analysis ◽  
Exploratory Factor Analysis ◽  
Factor Structure ◽  
Principal Components ◽  
High Stakes ◽  
Comprehension Test ◽  
Components Analysis

To investigate the construct validly of a section of a high stakes test, an exploratory factor analysis using principal components analysis was employed. The rotation used was varimax with the suppression level of .30. Eleven factors were extracted out of 35 reading comprehension items. The fact that these factors emerged speak to the construct validity of the test. However the problem of over-factoring was obvious. This may be attributable to different paradigms of testing on which the items were based. In other words, the test constructer opted for passages from TOEFL, FCE and IELTS books with much alteration.

scholarly journals The Adaptation of the Moral Integrity Scale into Turkish and Analysis of the Psychometric Features

2020 ◽  
Vol 5 (3) ◽  
pp. 327-340
Author(s):  
Nesrullah Okan ◽  
Halil Eksi
Keyword(s):  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Construct Validity ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Moral Identity ◽  
Criterion Validity ◽  
Validity And Reliability ◽  
Moral Integrity ◽  
Confirmatory Factor

The aim of this study is to adapt the Moral Integrity Scale developed by Sclenker (2008) to Turkish and conduct its psychometric analysis. The scale items were translated into Turkish by five specialists in the first place. After the language structure, culture suitability and understandability of the items were examined by the two experts, the items agreed upon were translated back to their original language by the two translation experts. After the positive evaluations of the experts, the final version of the scale items was decided. During the adaptation process of the study, data were collected from 470 people for exploratory factor analysis; from 248 people for confirmatory factor analysis and from 100 people for criterion validity. In this context, Exploratory Factor Analysis (AFA) was used to test the construct validity of the scale first. As a result of the exploratory factor analysis, it is seen that the moral integrity scale explains 52,127% of the variance as one dimension. Confirmatory factor analysis (CFA) was then performed to test the construct validity of the scale. The one-dimensional and 18-item structure of the Moral Integrity Scale was analyzed with DFA and accepted fit indices were obtained (X2 / sd = 2.745; p <.001; RMSEA = 0.061; S-RMR = 0.051; NFI = 0.929; CFI = 0.954; GFI = 0.915; RFI = 0.919). In order to calculate the scale reliability, the Cronbach Alpha (α) internal consistency coefficients and the difference between the lower and upper scores of 27% were examined. For the Moral Integrity Scale, the internal consistency coefficient Cronbach’s Alpha value was determined as 961. At the same time, the moral identity scale was used for criterion validity and a significant positive relationship was obtained with the two sub-dimensions of this scale. The total score obtained from the scale gives the person’s moral integrity score. According to all these results, it is understood that the Moral Integrity Scale has sufficient validity and reliability values.

Sign in / Sign up

Export Citation Format

Share Document