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.

Development of a Scale to Assess Physician Advance Care Planning Self-Efficacy

2016 ◽  
Vol 34 (5) ◽  
pp. 435-441 ◽  
Author(s):  
Kristin R. Baughman ◽  
Ruth Ludwick ◽  
Rebecca Fischbein ◽  
Kenelm McCormick ◽  
James Meeker ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Advance Care Planning ◽  
Self Efficacy ◽  
Strong Predictor ◽  
Initial Assessment ◽  
Care Planning ◽  
Good Internal Consistency ◽  
Advance Care

Background: Although patients prefer that physicians initiate advance care planning (ACP) conversations, few physicians regularly do so. Physicians may be reluctant to initiate ACP conversations because they lack self-efficacy in their skills. Yet, no validated scale on self-efficacy for ACP exists. Our objective was to develop a scale that measures physicians’ ACP self-efficacy (ACP-SE) and to investigate the validity of the tool. Methods: Electronic questionnaires were administered to a random sample of family medicine physicians (n = 188). Exploratory factor analysis was performed to determine whether the scale was multidimensional. An initial assessment of the scale’s validity was also conducted. Results: The exploratory factor analysis indicated that a single factor was appropriate using all 17 items. A single, unidimensional scale was created by averaging the 17 items, yielding good internal consistency (Cronbach α = 0.95). The average scale score was 3.94 (standard deviation = 0.71) on a scale from 1 to 5. The scale was moderately correlated with a global single-item measure of self-efficacy for ACP ( r = .79, P < .001), and the scale differentiated between physician groups based on how much ACP they were doing, how recently they had an ACP conversation, formal training on ACP, and knowledge of ACP. In a multivariate analysis, the ACP-SE scale was a strong predictor of the percentage of patients with chronic life-limiting diseases with whom the physician discussed ACP. Conclusion: The final ACP-SE scale included 17 items and demonstrated high internal consistency.

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.

Development and Psychometric Evaluation of the Concerns of Grieving Caregivers Scale (COGCS) with Two Clinical Samples

2021 ◽  
pp. 003022282110530
Author(s):  
Samantha O’Leary ◽  
Christopher Quinn-Nilas ◽  
Victoria Pileggi ◽  
Ceilidh Eaton Russell
Keyword(s):  
Factor Analysis ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Psychometric Evaluation ◽  
Community Organizations ◽  
Criterion Validity ◽  
Clinical Samples ◽  
Good Internal Consistency ◽  
Using Data ◽  
Children's Grief

The Concerns of Grieving Caregivers Scale (COGCS) is the first of its kind to explore caregivers’ concerns about their own parenting, as well as their relationships with, and specific behaviours of their bereaved child(ren). Using exploratory factor analysis, we evaluate grieving parents’ and caregivers’ concerns using data collected across clinical populations from two community organizations supporting grieving families (i.e., a children’s grief centre and a community hospice). Two identified factors were established: Concerns about Caregiving and Concerns about the Child. The COGCS demonstrates good internal consistency and criterion validity in its application with two distinct clinical samples. The use of this scale could be of value to clinicians supporting bereaved caregivers and their families as they can integrate concern-specific resources into their practice to better support their clients’ presenting concerns.

Development of the Mental Clutter Scale

2011 ◽  
Vol 109 (2) ◽  
pp. 445-452 ◽  
Author(s):  
Frank Leavitt ◽  
Robert S. Katz
Keyword(s):  
Factor Analysis ◽  
Cognitive Functioning ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Cognitive Disability ◽  
Cognitive Symptoms ◽  
Core Symptom ◽  
Good Internal Consistency ◽  
Test Retest Reliability ◽  
Item Scale

Mental fog is a core symptom of fibromyalgia. Its definition and measurement are central to an understanding of fibromyalgia-related cognitive disability. The Mental Clutter Scale was designed to measure mental fogginess. In an exploratory factor analysis of two different samples ( n = 128 and n = 170), cognitive symptoms of fibromyalgia loaded on 2 dimensions: cognition and mental clarity. The mental clarity factor comprised 8 items with factor loadings greater than .60 and was named the Mental Clutter Scale. The factor stability of the new scale was good, internal consistency was .95, and test-retest reliability over a median of 5 days was .92. The 8-item scale is a quick measure of mental fog that provides clinicians with information about cognitive functioning in fibromyalgia.

scholarly journals Design and Validation of a Scale of Attitudes Towards Academic Feedback (SAAF)

2020 ◽  
Author(s):  
Carolina Fuentes-Henríquez ◽  
Mónica Tapia-Ladino ◽  
Marcelo Careaga Butter ◽  
Juan Molina-Farfán
Keyword(s):  
Academic Achievement ◽  
Factor Analysis ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Principal Components ◽  
Formative Evaluation ◽  
Attitude Scale ◽  
Negative Experience ◽  
Principal Components Method ◽  
Components Method

Feedback is a type of formative evaluation linked to student learning and academic achievement. However, it is not known how students perceive this process since there are no instruments to measure attitudes towards feedback. The objective of this work was to develop and validate an attitude scale towards academic feedback through an Exploratory Factor Analysis (EFA), using the principal components method and an internal consistency analysis using Cronbach's Alpha. The sample consisted of 274 students from 2015, 2016, and 2017 cohorts of pedagogy careers from five Chilean universities. The results showed the consolidation of the instrument and its final conformation in four components (Negative experience towards feedback, Effectiveness of feedback, Feedback as an opportunity, and Resistance towards feedback) with a total of 15 items, which allow measuring the students' attitude towards this written formative evaluation.

scholarly journals Escala para homofobia: validez y confiabilidad en estudiantes de medicina de una universidad de bogotá (colombia), 2010 / homophobia scale: validity and reliability in medical students of a university from bogota (colombia), 2010

2014 ◽  
Vol 14 (1) ◽  
pp. 9-20
Author(s):  
Heidi Celina Oviedo ◽  
Edwin Herazo
Keyword(s):  
Factor Analysis ◽  
Medical Students ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Single Factor ◽  
Validity And Reliability ◽  
Scale Validity ◽  
Cronbach Alpha ◽  
Good Internal Consistency ◽  
De Medicina

Objetivo: Determinar la validez y confiabilidad de la escala para homofobia (EHF) enestudiantes de medicina de una universidad de Bogotá, Colombia, 2010. Método: Serealizó un estudio de validación con la participación de 124 estudiantes de sexto a décimosemestre, en edades entre 19 y 34 años de edad, media de 23,7 años (DE=2,7);y 66,1%, mujeres y 33,9% hombres. Resultados: Se estimó alfa de Cronbach y omegade McDonald como medidas de confiabilidad y análisis factorial exploratorio paraconocer la estructura interna de la escala. El alfa de Cronbach fue 0,81 y la omega deMcDonald, 0,82. La estructura interna dio cuenta de un único factor responsable del49,2% de la varianza. Conclusión: La EHF muestra buena consistencia interna y unfactor en estudiantes de medicina de sexto a décimo semestre de una universidad deBogotá, Colombia. La escala mide con aceptable validez y confiabilidad el prejuiciohacia personas homosexuales en estudiantes de medicina. Este desempeño permiteel uso en nuevas investigaciones.Objective: To determine the validity and reliability of the Homophobia Scale (HS) inmedical students of a university in Bogotá, Colombia, 2010. Method: A validation studywas conducted with the participation of 124 students from sixth to tenth semester,aged between 19 and 34 years old, average 23.7 years (SD=2.7); and 66.1% womenand 33.9% men. Results: It was estimated Cronbach alpha and McDonald omegaas measures of reliability; and exploratory factor analysis to determine the internalstructure of the scale. Cronbach alpha was 0.81; and McDonald omega, 0.82. Theinternal structure showed a single factor responsible for 49.2% of the total variance.Conclusion: HS shows good internal consistency and a single factor in medical studentsfrom sixth to tenth semester at a university in Bogotá, Colombia. HS measureswith acceptable validity and reliability the prejudice toward homosexuals in medicalstudents. This performance allows use in further research.

scholarly journals Psychometric properties of the Porto Saudade Scale

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Félix Neto
Keyword(s):  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Psychometric Properties ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
External Validity ◽  
Preliminary Validation ◽  
Confirmatory Factor ◽  
Good Internal Consistency ◽  
Psychometric Evidence

AbstractSaudade involves psychosocial reactions to several circumstances involving deprivation from loved people and/or familiar locations. This work concerns the development and preliminary validation of an instrument to assess general disposition to saudade, the Porto Saudade Scale (PSS). Three studies were conducted which indicated that the PSS has favorable psychometric properties. Exploratory factor analysis of the PSS demonstrated a single latent saudade factor. The confirmatory factor analysis showed that the single latent model of the PSS is adequate and possesses good internal consistency. As expected, the data also supported the convergent, discriminant, and external validity of the PSS. Saudade was more frequently reported among females than among males. These results suggest the validity of the PSS and emphasize that it is a brief measure with strong psychometric evidence for assessing saudade.

Understanding Perception of Weight Stigma: Development and Validation of Perceived Weight Stigmatization Scale

2020 ◽  
Vol 34 (4) ◽  
pp. 869-897
Author(s):  
Atiqa Rafeh ◽  
Rubina Hanif
Keyword(s):  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
University Students ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Weight Stigma ◽  
Principal Component Factor Analysis ◽  
Confirmatory Factor ◽  
Perceived Weight ◽  
Weight Stigmatization

The present study was intended to develop a scale to measure perceived weight stigmatization among people with obesity. The study was conducted in five steps. In first step, three focus group discussions were conducted with female obese university students to get the first-hand information related to weight stigmatization. Step two involved four interviews which were conducted with male obese university students to collect detailed information about weight stigmatization experiences of men. Step three included content analysis of qualitative data for item generation. In step four, judge’s opinion was taken, and a committee approach was carried out to select the items for the initial form of the scale. Items for final form of the scale were selected through exploratory factor analysis and confirmatory factor analysis in step five. For exploratory factor analysis, 150 university students (men = 61, women = 89) were included in the sample, whereas, for confirmatory factor analysis, another group of students (men = 78, women = 72) participated in the study. Principal Component Factor Analysis revealed three meaningful structures including Self-Perception, Perceived Social Rejection, and Perceived Impact containing 43 items. Confirmatory factor analysis confirmed this factor structure and all 43 items possessed factor loadings greater than .40. Moreover, results indicated that perceived weight stigmatization had high internal consistency (Cronbach’s alpha = .96) with three subscales having internal consistency .95, .83, and .92 respectively. Therefore, Perceived Weight Stigmatization Scale turned out to be a reliable and valid instrument for measuring perception of weight stigma in adults with obesity.

scholarly journals Beliefs about medicines and adherence in women with breast cancer on adjuvant endocrine therapy

2021 ◽  
pp. 135910532199077
Author(s):  
Eng Hooi Tan ◽  
Andrea Li Ann Wong ◽  
Chuan Chien Tan ◽  
Patrick Wong ◽  
Sing Huang Tan ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Factor Analysis ◽  
Medication Adherence ◽  
Endocrine Therapy ◽  
Internal Consistency ◽  
Early Stage ◽  
Adjuvant Endocrine Therapy ◽  
Beliefs About Medicines ◽  
Good Internal Consistency ◽  
English Speaking

The Beliefs about Medicines Questionnaire (BMQ) and Adherence Starts with Knowledge (ASK-12) questionnaire were originally developed and validated in Western populations to assess beliefs and barriers to medication adherence. The study aim is to validate the BMQ and ASK-12 questionnaire for use in a Singapore population with early stage breast cancer. English-speaking women on adjuvant endocrine therapy ( n = 157) were recruited. The BMQ-Specific showed good internal consistency with structural validity. The internal consistency of BMQ-General and ASK-12 Behaviour scale improved with the new factor structure obtained from exploratory factor analysis. Further studies are needed to confirm these factor structures.

scholarly journals The development of a contextually appropriate measure of psychological distress in Sierra Leone

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Rebecca Horn ◽  
Kanykey Jailobaeva ◽  
Stella Arakelyan ◽  
Alastair Ager
Keyword(s):  
Mental Health ◽  
Factor Analysis ◽  
Psychological Distress ◽  
Sierra Leone ◽  
Exploratory Factor Analysis ◽  
Internal Consistency ◽  
Phase 1 ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Distress Scale

Abstract Background Studies of psychological distress in Sierra Leone have typically used measures which were developed for use in other contexts, and which often have not been adapted or validated for use in Sierra Leone. This has resulted in a lack of reliable information about the patterns of psychological distress within the population, which is a barrier to the development of effective and appropriate mental health services. The aim of the study was to develop a locally-appropriate measure of psychological distress for Sierra Leone. Methods The new measure consists of two instruments: the Sierra Leone Psychological Distress Scale (SLPDS) and a gendered measure of ability to carry out daily tasks—a Function scale—as an indication of the severity of distress. A three-phase mixed methods exploratory sequential study was conducted. Phase 1 was item generation and testing, leading to the development of a set of potential items for both instruments. Phase 2 was a small pilot study (N = 202) leading to the selection of the final set of items for both measures. Phase 3 was a validation phase where the SLPDS and the Function scale were administered with a larger sample of 904 respondents. Item analysis was used to assess the internal consistency of the scales, and Exploratory Factor Analysis to explore the properties of the SLPDS. Results Exploratory factor analysis using the principal axis factoring with an oblique rotation identified a three-factor structure for the 18-item SLPDS. Internal consistency for the SLPDS (Cronbach’s alpha = 0.89) and three subscales was good (Cronbach’s alpha > 0.73). The internal reliability of the male and female versions of the Function scale was also found to be acceptable (Cronbach’s alpha = 0.90 for the female scale and 0.79 for the male scale). Conclusions Together the SLPD and Function scales provide a locally-validated tool which will enable government bodies and local and international non-governmental organisations in Sierra Leone to assess mental health and psychosocial needs. This will support both effective service provision and the evaluation of initiatives designed to improve mental health and psychosocial wellbeing.

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