Search results for "Factorial"
showing 10 items of 253 documents
La provisión de cultura en España desde una perspectiva del análisis regional
2001
La industria de la cultura y el ocio sigue siendo un sector que el análisis económico y social no toma en suficiente consideración, a pesar de que desde una perspectiva amplia se puede considerar como uno de los sectores productivos más importantes del país. La industria de la cultura y el ocio entra por derecho propio en los sectores emergentes de la «nueva economía», al ser proveedores de contenidos del nuevo capitalismo informacional. Las consecuencias de esa postergación académica son las escasas investigaciones desde las ciencias sociales y el exiguo fondo metodológico respecto al análisis económico. Desde esta perspectiva, el presente artículo aborda la metodología factorial múltiple …
The exploratory factor analysis of items: guided analysis based on empirical data and software
2017
El objetivo del presente trabajo es ilustrar cómo la aplicación adecuada o inadecuada del análisis factorial exploratorio (AFE) puede llevar a conclusiones muy diferentes. Para ello se evalúa el grado en que cuatro paquetes estadísticos diferentes que permiten realizar AFE de ítems, en concreto SPSS, FACTOR, PRELIS y MPlus, permiten o limitan la aplica- ción de los estándares actualmente recomendados en materia de análisis factorial. Asimismo se analizan y comparan los resultados que ofrecen di- chos programas cuando se factorizan datos empíricos de escalas que ajus- tan, según el caso, de manera inadecuada, ambigua u óptima a los supuestos del modelo AFE lineal clásico, a través de las dis…
Removal and fate of endocrine disruptors chemicals under lab-scalepostreatment stage. Removal assessment using light, oxygen and microalgae
2013
[EN] The aim of this study was to assess the effect of light, oxygen and microalgae on micropollutants removal. The studied micropollutants were 4-(1,1,3,3-tetramethylbutyl)phenol (OP), technical-nonylphenol (t-NP), 4-n-nonylphenol (4-NP), Bisphenol-A (BPA). In order to study the effect of the three variables on the micropollutants removal, a factorial design was developed. The experiments were carried out in four batch reactors which treated the effluent of an anaerobic membrane bioreactor. The gas chromatography mass spectrometry was used for the measurement of the micropollutants. The results showed that light, oxygen and microalgae affected differently to the degradation ratios of each …
Measurement Invariance and Construct Validity of the Satisfaction With Life Scale (SWLS) in Community Volunteers in Vietnam.
2022
Worldwide, the Satisfaction With Life Scale (SWLS) has become the most widely used measure of life satisfaction. Recently, an authorized Vietnamese-language version has been introduced. Using a convenience sample comprising community volunteers from Ho Chi Minh City (N = 1073), confirmatory support was found for the cross-national constancy of the one-dimensional structure underlying the SWLS. Corrected item–total polyserial correlations and Omega coefficient were satisfactory. Using multi-group confirmatory factor analysis, configural, metric, and scalar invariance of the SWLS factorial structure were tested by gender, age, marital status, income, and educational level. Strong evidence of …
Psychometric analysis of a perception scale on the usefulness of Moodle in the University
2014
Because of the relevance acquired by the learning management systems in higher education, and the spread of use of the Moodle platform in many academic institutions, a scale of perceived usefulness on the use of Moodle in this context is designed. Furthermore, the study tested the psychometric validity of the scale. The aim is to provide a reliable and valid instrument to measure the students’ perception about the usefulness of Moodle. From the population of university students in Educational Sciences field, the study obtained a sample of 754 subjects. The results show that the scale evaluates the utility of the platform adequately in five dimensions: content, activities, assessment, intera…
PRÁCTICAS DEL ANÁLISIS FACTORIAL EXPLORATORIO (AFE) EN LA INVESTIGACIÓN SOBRE CONDUCTA DEL CONSUMIDORY MARKETING
2012
El Análisis Factorial Exploratorio (AFE) es una de las técnicas estadísticas más utilizadas en la investigación social. El principal objetivo de este trabajo es describir las prácticas más utilizadas por los investigadores en el área de la conducta del consumidor y el marketing. Mediante una metodología de revisión documental se analizan las prácticas de AFE en cinco revistas españolas dedicadas a dicha temática (2000-2010). Se analizan las elecciones de los investigadores relacionadas con el modelo factorial, el criterio de retención, la rotación, la interpretación de los factores y otras cuestiones relevantes para el análisis factorial. Los resultados sugieren que los investigadores ejecu…
Cyclic coordinate for penalized Gaussian graphical models with symmetry restriction
2014
In this paper we propose two efficient cyclic coordinate algorithms to estimate structured concentration matrix in penalized Gaussian graphical models. Symmetry restrictions on the concentration matrix are particularly useful to reduce the number of parameters to be estimated and to create specific structured graphs. The penalized Gaussian graphical models are suitable for high-dimensional data.
Longitudinal factorial invariance of the Maslach Burnout Inventory-General Survey among employees with job-related psychological health problems
2011
The study provides new knowledge about the longitudinal factorial invariance of the Maslach Burnout Inventory-General Survey (MBI-GS). In order to investigate the factor structure of the MBI-GS and its invariance across time, a full panel data with two measurements gathered among employees with job-related psychological health problems was used. Consistent with previous study findings, the results indicated that the correlated three-factor model of the MBI-GS (i.e. exhaustion, cynicism and professional efficacy) showed a better fit with the data than the alternative factor models. The correlated three-factor structure was invariant across time, indicating that the scale has good construct v…
An Examination of the Structure of the Career Decision Self-Efficacy Scale (Short Form) Among Italian High School Students
2013
This study aims to evaluate the factor structure of Career Decision Self-Efficacy scale-short form in a sample of Italian high school adolescents. confirmatory factor analysis (CFA) was used to test the degree to which a one-factor structure and a five-factor structure provided the best fit. In view of available research the five-factor structure was expected to provide the best fit. Moreover, factorial invariance in males and females was tested. It was expected to be invariant across groups. As expected the five-factor structure showed a better fit than the one-factor model and the factorial invariance resulted invariant across boys and girls.
Measurement invariance of the Behavioural Regulation in Sport Questionnaire when completed by young athletes across five European countries
2013
The purpose of this study was (1) to examine the factorial validity of the Behavioural Regulation Sport in Questionnaire (BRSQ) when completed by young soccer players in the Promoting Adolescent Physical Activity (PAPA) project (9-15 years old) in 5 European countries (France: n = 1248, Greece: n = 1507, Norway: n = 1397, Spain: n = 2245, and England: n = 1372) and (2) test the measurement invariance of its latent factors across these 5 countries.First, we tested the exploratory structural equation model (ESEM) factor analyses, allowing cross-loadings between factors, against the traditional independent clusters confirmatory factor analysis model (ICM-CFA), with all cross-loadings constrain…