scholarly journals Un modelo de ecuaciones estructurales sobre el efecto de la salud en la intención de practicar desplazamiento activo: estudio de la invarianza factorial por sexo y edad (A structural equation model about the effect of health on behaviour intention to pra

Retos ◽  
2021 ◽  
Vol 44 ◽  
pp. 386-394
Author(s):  
José Antonio Ortiz Sánchez ◽  
José M. Ramírez Hurtado ◽  
Ignacio Contreras

  En los últimos años ha habido un elevado crecimiento de problemas de salud en las personas, tales como obesidad, sobrepeso, diabetes, etc. Una forma de combatir este problema es el desplazamiento activo. El objetivo de este trabajo es evaluar el efecto de la salud, el confort y la conciencia medioambiental sobre la intención de practicar desplazamiento activo, así como estudiar la invarianza factorial por sexo y edad. Para ello se diseñó un cuestionario y se distribuyó mediante un muestreo por conveniencia con efecto de bola de nieve, obteniéndose 448 respuestas válidas. Para el análisis se especificó y estimó un modelo de ecuaciones estructurales con AMOS. Los resultados permitieron verificar la fiabilidad y validez del modelo de medida y del modelo estructural. De igual modo, los resultados permitieron concluir que se cumple la invarianza factorial para la variable sexo, pero no se cumple la invarianza factorial estricta para la variable edad. Abstract. A growing of health problems in people have been in recent years, as obesity, overweight, diabetes, etc. Active commuting is a way to combat these problems. The objective of this work is to assess the effect of health, comfort and environmental awareness on behaviour intention to practice active commuting, as well as to study the factorial invariance by sex and age. For this purpose, a questionnaire was designed and distributed by means of a convenience sample with snowball effect. 448 responses were obtained from this sample. The specification and estimation of structural equation model with AMOS was designed for the analysis of the data. The results show that the reliability and validity of measurement model and structural model is verified. The results also show that factorial invariance by sex is verified but strict factorial invariance for age is not verified.

DYNA ◽  
2020 ◽  
Vol 87 (213) ◽  
pp. 159-164
Author(s):  
Eileen Cruz González ◽  
José Alberto Vilalta-Alonso

With the objective of obtaining a predictive model of the intention of stay applicable to the companies subordinated to the the local Business Group in the province of Artemisa, Cuba, the investigation consisted of the application of a questionnaire to 353 workers of 8 companies that were derelict in their corporate purpose. The results obtained support the hypotheses proposed since both the affective organizational commitment, the normative organizational commitment and the organizational commitment of continuity are significantly and positively related to the intention of permanence (r = 0.68, r = 0.55, r = 0.44, with p < 0.01), R2 = 0.552. The AMOS software is used to obtain the measurement model and the structural model as well as for the equations (CMIN/DF = 1.978, CFI = 0.972, SRMR = 0.043, RMSEA = 0.062, PClose = 0.084).


1976 ◽  
Vol 24 (1_suppl) ◽  
pp. 9-24
Author(s):  
James G. Anderson ◽  
Mark Triplett

In this paper a dynamic structural equation model consisting of a set of difference equations has been constructed in order to examine the process by which groups generate pressures toward uniformity. The model is based on Festinger's hypotheses about communication resulting from such pressures. Parameters of the model have been estimated from a consideration of one of the equilibrium conditions of the model. Hypothetical time paths that describe the dynamic behaviour of the system have been generated by a series of computer simulation runs. These graphs describe the process by which group cohesiveness and discrepancy in opinions among group members adjust to each other over time. The model has lead to a number of major insights into this dynamic process. The results of the simulation indicate the existence of multiple equilibrium points for the system and that the relevance of the issue for the group's functioning is a critical factor in determining the rate at which a new equilibrium is reached once the initial equilibrium is disturbed. Groups can and do attempt to influence members in order to achieve uniformity of opinions, beliefs, values and behaviour (Asch, 1951; Deutsch and Gerard, 1955; Scott 1965). Cartwrght and Zander (1968) in reviewing the theoretical explanations of why groups attempt to achieve uniformity point out four functions that such pressure serves; namely goal attainment (Festinger, 1950), group maintenance (Stock, Whitman and Lieberman, 1958), the development of social reality through consensus (Festinger, 1954; Schachter, 1959), and achievement of consensus concerning group relations with its social surroundings (Burns, 1955; Cohen, 1955; Yinger, 1950). As a result discrepancies in opinions, beliefs, values and behaviour, give rise to pressures on members to communicate with one another. Festinger (1950) in his investigations of informal social communications has enumerated a set of hypotheses concerning such communication that results from group pressures to achieve uniformity. Several of his hypotheses are concerned with members of the group as a whole and form the basis of one model by Simon and Guetzkow (1955) involving a set of differential equations. In the following section of this paper Festinger's verbal theory will be recast as a causal model (Blalock, 1969). A dynamic structural equation model will be developed consisting of a set of difference equations. This structural model will form the basis of a computer simulation model which will be validated with data from studies by Festinger, Schachter and Back (1950), Festinger and Thibaut (1951) and Back (1951).


2017 ◽  
Vol 10 (6) ◽  
pp. 227 ◽  
Author(s):  
Kambiez Talebi ◽  
Jahangir Yadollahi Farsi ◽  
Hamideh Miriasl

This study has investigated the effects of strategic alliances on the performance of small and medium sized enterprises (SMEs) of the industry of automotive parts manufacturers. Questionnaires have been distributed among 400 senior managers of SMEs of the industry of auto parts manufacturers based on stratified random sampling. The data has been analyzed using structural equation modeling software and PLS2 software in two segments of measurement model and structural model. In the first segment, technical features of the questionnaire were tested in terms of reliability and validity. Moreover, in the second segment, t-test was used to test research hypotheses. The results show that there is a significant and positive relationship between the dimensions of strategic alliances, including new opportunities, entrepreneurial and innovative capabilities, social capital, and internationalization of business, and competitive advantage with the performance of SMEs.


2019 ◽  
Author(s):  
Ulrich Schimmack

In this commentary on the state of validation research in psychology, I review Cronbach and Fiske’s (1955) seminal article and point out that the term is widely used, but researchers rarely follow their recommendations. Most important, construct validation requires specification of a nomological net, which could be done with a structural equation model and construct validity should be quantified, which could be done by means of factor loadings in an SEM measurement model.


2018 ◽  
Vol 7 (1) ◽  
pp. 67-77
Author(s):  
Melanie G. Gurat

This study aimed to construct structural equation model of students’ competence in mathematics through selected students profile variables.  This study employed quantitative research design. The publicized PISA Mathematics Test was used to determine the competency of students in mathematics. The data was analyzed using Analysis of MOment Structures (AMOS). Findings revealed that structural model of students’ competence in applying mathematics in real world problems revealed interesting influence of the profile variables to the competency in mathematics.   It can be conveyed that better mother’s work status, higher educational level expected to complete, more confident and did not repeat kinder, have better competency in mathematics. The four variables that directly influenced the competence variables were also influenced with other profile variables such as family background. The family background and confidence level consistently had the highest total effect and indirect effect to the competence in mathematics.  Hence, this model can be used as guide in making programs in the classroom or curriculum in mathematics to develop students’ competency in mathematics.


2021 ◽  
Vol 8 (2) ◽  
pp. 103-113
Author(s):  
Mercy Inikpi Achoba ◽  
Roshida Abdul Majid ◽  
Cyril Obinna Obiefuna

Office occupants’ have always preferred workplaces that have windows that connects them to the outside. Window access to the outside can influence occupants’ satisfaction with the combination of other workplace features. This study aims to identify the window and view factors relationship in the workplace, to confirm the reliability and validity of the measurement and structural model. Adopting a cross-sectional survey design, primary data from five offices in the Kogi State of Nigeria with 267 respondents were collected by using the convenience sampling method and analysis was performed with the Statistical Package for Social Science version 23 and AMOS 22.0 version as the modelling tool. The study identified eleven vital factors that are interrelated in the relationship between windows and view in the workplace. They are referred to as latent construct namely; Window distance (WDB), Seating arrangement (SAB), Room height (FHB), Office size (OSB), Window position (WPB), Window Sill level (WLC), Window size (SWC), Window type (TWC), View content (CVC), View satisfaction (VSC), and Occupants’ satisfaction (SAT). The result showed a valid model using the Structural Equation Model, and the effect of the current workplace negligence on occupants’. This study improves the existing knowledge on the window and view relationship in the workplace, and provide suggestions for Facility Managers, Architects, and Interior Designers on maintaining a healthy workplace environment


Author(s):  
Yalong Yuan ◽  
Min Yang ◽  
Zuoxian Gan ◽  
Jingxian Wu ◽  
Chengcheng Xu ◽  
...  

For decreasing the casualties and property losses in truck-involved fatal accidents, efforts to identify risk factors and their impacts on the fatal accidents are urgently needed. First, for scaling damage extent in fatal accident, truck occupant injury factor and accident size were selected from occupant- and crash- levels respectively. Then, a general structural model was built to explore the relationships between environmental, roadway, vehicle, driver factors and fatal accident severity. Afterwards, by analyzing 2010 data from the Trucks Involved in Fatal Accidents (TIFA) database, a weighted least squares (WLS) based structural equation model (SEM) was adopted to estimate the parameters of the general structural model. Significant differences between various risk factors determining truck occupant injury factors and accident severity were identified. The results indicate that environmental, roadway, vehicle, and driver factors all have statistically significant effects on the accident size and truck occupant injury factors. However, the extent to which these risk factors impact these two latent endogenous variables differ significantly. Measurement models including different latent risk factors and the corresponding observed variables are then analyzed. The results show that main indicators affecting accident severity are: environmental and roadway factors such as weather, surface conditions; vehicle factors such as truck weight and body type; and driver factors such as age, driving experience, and history of crashes or convictions. Finally, several countermeasures are suggested for truck manufactures and safety planners with the goal of reducing the number and severity of fatal accidents involving trucks.


2017 ◽  
Vol 29 (4) ◽  
pp. 401-415 ◽  
Author(s):  
Vasco Ribeiro Santos ◽  
Paulo Ramos ◽  
Nuno Almeida

Purpose This paper aims to measure the role of involvement, destination emotions and place attachment in the behavioural intentions of wine tourists when visiting Porto wine cellars. Design/methodology/approach An interceptive survey was conducted with wine tourists during their visits to four Porto wine cellars. A convenience sample of 918 international visitors was obtained. A structural equation model using partial least squares analysis was used to test the hypothesis and the validity of the constructs and model. Findings The structural model results indicated that wine tourists’ personal involvement and their wine involvement have a significant and direct influence on destination emotions and place attachment in Porto wine cellars during the visits, which determines their future behavioural intentions. Research limitations/implications The generalizability of the results may be limited owing to the sample and the data collection method and the short time frame of the data gathering. Practical implications There is a growing potential for researchers and managers to achieve benefits from the proposed model that will support the efforts for wine tourism theory and practice, such as brand positioning strategies and formulation of sharper marketing strategies. Originality/value This is the first study to demonstrate the combined use of personal and wine involvement on destination emotions along with place attachment in a wine tourist behaviour context. This approach extends the scope into a wine tourism context because the combination of these three constructs has never been held in the area of wine tourism destinations.


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