scholarly journals FACTORAL STRUCTURE OF MORPHO-FUNCTIONAL INDICATORS AND MOTOR QUALITIES OF MUSCULAR STRENGTH AND ENDURANCE IN STUDENTS

2020 ◽  
Vol 18 (Suppl.1) ◽  
pp. 720-726
Author(s):  
P. Petkov
Keyword(s):  
Factor Analysis ◽  
Body Weight ◽  
Muscle Strength ◽  
Factor Structure ◽  
Muscular Strength ◽  
Structural Changes ◽  
Model Development ◽  
Graphical Analysis ◽  
Main Factors ◽  
Main Factor

The purpose of the present study is to establish the factor relationships between morpho-functional parameters and physical qualities, muscle strength and endurance due to the application of a specialized fitness model. To achieve this goal we the following tasks are set: research of literature resources; development and testing of a specialized fitness model; development of a test battery; processing and analyzing the data from the conducted testing. Research methods - pedagogical experiment, testing, factor analysis, graphical analysis. The contingent of the study are 34 students from the Trakia University. The students are on average 20.04 years old. The results and their analysis show that in the applied fitness model there is a decrease in the number of the main factors in the factor structure of the morpho-functional indicators and the observed motor functions; the increase in the influence of the first main factor in the second study explains the higher percentage of the cumulative variance. This leads to structural changes in the content of the main factors; changes the influence of factors, which after the experiment increases the influence of endurance due to the composition of body weight; the force factors retain approximately the same weight in the second study.

scholarly journals Factors affecting joint mobility

2019 ◽  
pp. 107-118
Author(s):  
Yu. P. Potekhina ◽  
A. A. Kurnikova ◽  
D. R. Dautov ◽  
A. D. Postnikova ◽  
K. E. Novgorodskij
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Body Weight ◽  
Structural Changes ◽  
Joint Mobility ◽  
Degenerative Diseases ◽  
Factors Affecting ◽  
Weight Level ◽  
History Of ◽  
Main Factors

The review aims to systematize the main factors affecting the joint mobility. These factors can be divided into anatomical and functional, normal and pathological. Various anatomical elements of the joint and periarticular tissues serve as restraints of movement in the joint. Muscles are the main restraints. Under the infl uence of physical loads related to sports or profession, joints can undergo functional and structural changes that increase or decrease their mobility. With age, mobility in the joints decreases and degenerative diseases can develop. Risk factors for osteoarthrosis can be unchangeable (gender, age, heredity, history of trauma) and changeable (body weight, level of physical activity). By infl uencing changeable factors, it is possible to prevent and treat degenerative joint lesions.

Factors of the Structural Dynamics of the Economy of Modern Russia

2021 ◽  
pp. 45-49
Author(s):  
Leonid Basovskiy
Keyword(s):  
Structural Changes ◽  
Value Added ◽  
Linear Regression Models ◽  
Gross Value Added ◽  
Condi Tions ◽  
Household Activities ◽  
Main Factors ◽  
Post Industrial ◽  
Main Factor ◽  
Sectorial Structure

The aim of the work was to study the dynamics of structural changes in the economy of modern Russia. Linear regression models used to assess trends in changing the contribution of industries to gross value added. The main factors of the sectorial structure of gross value added assessed by factor analysis based on a principal compo-nent model. The main factor in the dynamics of the sectorial structure is the factor of the development of sectors, which until recently were the least developed. It reflects the growth in the contribution of transport and communications, agriculture, real estate transactions, rent. The second most important factor reflects the cyclical redistribution of shares between industry - extractive and manufacturing and financial activities. The third factor reflects the cyclical redistribution of shares between household activities and most other sectors of the economy. The fourth main factor also reflects the cyclical redistribution of shares between industries. It assumed that the main factors of changes in the structure of the economy are associated with the transition processes taking place in the economy and reflecting the slow transition due to unfavorable institutional condi-tions to the dominance of the fifth post-industrial technological order.

scholarly journals Estudio empírico de los enfoques de aprendizaje de los estudiantes universitarios en función del perfil de su titulación (profundo VS superficial)

2014 ◽  
Vol 12 (22) ◽  
pp. 303 ◽  
Author(s):  
F. Hernández ◽  
Mª P. García ◽  
J. J. Maquilón
Keyword(s):  
Factor Analysis ◽  
Student Performance ◽  
Learning Approaches ◽  
Deep Approach ◽  
Surface Approach ◽  
Main Factors ◽  
University Course ◽  
Main Factor ◽  
Estudiantes Universitarios

RESUMENEn la presente investigación se trata de estudiar, en primer lugar, a partir del análisis factorial los items que mejor definen los enfoques de aprendizaje -motivos y estrategias-de los estudiantes universitarios. En segundo lugar, se analiza la actuación que los estudiantes tienen en los items en cada una de las escalas en función del perfil de aprendizaje predominante en su titulación: superficial y profundo. Los resultados muestran que los items de la subescala de motivo profundo se factorizan en un solo factor y los de estrategia en dos factores. En cambio, en el enfoque superficial, ambas subescalas se factorizan en tres factores. En relación con el segundo objetivo, se ha observado una coherencia entre el enfoque predominante en los estudiantes y el perfil del centro en el que estudian.ABSTRACTIn this research we use the factor analysis to analyse which items are the most representative in the Biggs' SPQ. Secondly, we also analyse the performance of students in the questionnaire to see whether there is any relationship between the learning approaches of their University course and the student performance. The results show that the scale for deep approach produce one main factor in motive subscale and two main factors in strategy scale. On the contrary, the scale for surface approach split in three main factors. Concerning the second objective we find that there is a relationship between the faculties profile and the student performance.

scholarly journals Differences in the Factor Structure of the Eating Attitude Test-26 (EAT-26) in Different Cultures in Israel: Jews, Muslims, and Christians

Nutrients ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 1899
Author(s):  
Zohar Spivak-Lavi ◽  
Ora Peleg ◽  
Orna Tzischinsky ◽  
Daniel Stein ◽  
Yael Latzer
Keyword(s):  
Factor Analysis ◽  
Factor Structure ◽  
Eating Attitudes ◽  
Eating Attitude ◽  
Community Studies ◽  
Factors Affecting ◽  
Main Factors ◽  
Eat 26 ◽  
Different Cultures ◽  
Three Factor

Background: In recent years, there has been a shift in the clinical presentation and, hence, diagnostic definitions of eating disorders (EDs), reflected in a dramatic change in the diagnostic criteria of EDs in the DSM-5. The Eating Attitudes Test-26 (EAT-26) is currently considered an accepted instrument for community studies of EDs, although it features an inconsistent factorial structure in different cultures. Therefore, it is essential to investigate whether the EAT-26 can still be considered an adequate instrument for identifying the risk of developing EDs in different cultures. The aim of the present study was to examine the construct validity and internal consistency of the EAT-26. Method: The study used exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) among different cultural populations in Israel. Results: Findings indicated different factors in different ethnic groups, most of which do not correspond with the original EAT-26 three-factor structure. Results: The analysis yielded two main factors among Israeli Jews, four main factors among Israeli Muslim Arabs, and three main factors among Israeli Christian Arabs. Conclusion: These findings shed light on cultural factors affecting perceptions of the EAT-26 items. This calls for a reconsideration of the generalization of the original three-factor structure of the questionnaire in different cultures.

Objective Evaluation Based on Main Factors Analysis of the Wool Knitted Fabric Style

2011 ◽  
Vol 331 ◽  
pp. 56-60
Author(s):  
Pei Long Li ◽  
Ling Cheng
Keyword(s):  
Mechanical Properties ◽  
Factor Analysis ◽  
Evaluation System ◽  
Evaluation Method ◽  
Objective Evaluation ◽  
Knitted Fabric ◽  
Factors Analysis ◽  
Main Factors ◽  
Main Factor ◽  
The Evaluation System

In this paper, an objective evaluation method based on main factor analysis of the wool knitted fabric was researched. Because 17 parameters for expressing fabric style were simplified into several main factors in the method, the evaluation system for fabric style was simplified into four index: stiffness, glutinous degree, rebound elasticity and fullness softness, which provides a theoretical reference between fabric mechanical properties and wool knitted fabric style research.

The Development of the Job Stressor Appraisal Scale as Part of the Job Stress Battery

2012 ◽  
Vol 28 (2) ◽  
pp. 147-153 ◽  
Author(s):  
Ilknur Özalp Türetgen ◽  
Özlem Sertel Berk ◽  
Gokce Basbug ◽  
Pinar Unsal
Keyword(s):  
Factor Analysis ◽  
Job Stress ◽  
Factor Structure ◽  
Validity And Reliability ◽  
Job Stressors ◽  
Job Stressor

This study introduces the psychometric qualities of the Job Stressor Appraisal Scale (JSAS), a part of the Job Stress Battery, which comprehensively measures job stress in terms of job stressors, moderators, and strains. The JSAS measures employees’ appraisals of job stressors by considering both their frequency and intensity. To test its psychometric qualities, we administered the JSAS to a sample of 1,069 employees in Turkey. Factor analysis revealed a 5-factor structure, with 43 items explaining 46.1% of the variance. Cronbach’s α coefficients of the factors and the total scale varied between .66 and .93. In terms of construct and convergent validities, results generally showed significant correlations in the expected directions. These findings obtained on the validity and reliability of the scale imply good psychometric qualities.

Development of the Teacher Attitudes Towards Self-Regulated Learning Scale

2018 ◽  
Vol 34 (3) ◽  
pp. 193-205 ◽  
Author(s):  
Julia Steinbach ◽  
Heidrun Stoeger
Keyword(s):  
Factor Analysis ◽  
Primary School ◽  
Factor Structure ◽  
Concurrent Validity ◽  
Binary Logistic Regression ◽  
Affective Component ◽  
Self Regulated Learning ◽  
Regulated Learning ◽  
Teachers Attitudes ◽  
Development And Validation

Abstract. We describe the development and validation of an instrument for measuring the affective component of primary school teachers’ attitudes towards self-regulated learning. The questionnaire assesses the affective component towards those cognitive and metacognitive strategies that are especially effective in primary school. In a first study (n = 230), the factor structure was verified via an exploratory factor analysis. A confirmatory factor analysis with data from a second study (n = 400) indicated that the theoretical factor structure is appropriate. A comparison with four alternative models identified the theoretically derived factor structure as the most appropriate. Concurrent validity was demonstrated by correlations with a scale that measures the degree to which teachers create learning environments that enable students to self-regulate their learning. Retrospective validity was demonstrated by correlations with a scale that measures teachers’ experiences with self-regulated learning. In a third study (n = 47), the scale’s concurrent validity was tested with scales measuring teachers’ evaluation of the desirability of different aspects of self-regulated learning in class. Additionally, predictive validity was demonstrated via a binary logistic regression, with teachers attitudes as predictor on their registration for a workshop on self-regulated learning and their willingness to implement a seven-week training program on self-regulated learning.

Confirmatory Factor Analysis of the Long and Short Forms of the Worry Domains Questionnaire

2009 ◽  
Vol 25 (4) ◽  
pp. 239-243
Author(s):  
Roberto Nuevo ◽  
Andrés Losada ◽  
María Márquez-González ◽  
Cecilia Peñacoba
Keyword(s):  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Factor Structure ◽  
Goodness Of Fit ◽  
Factorial Validity ◽  
Fit Indices ◽  
Short Forms ◽  
Confirmatory Factor ◽  
Positive Correlations ◽  
Future Work

The Worry Domains Questionnaire was proposed as a measure of both pathological and nonpathological worry, and assesses the frequency of worrying about five different domains: relationships, lack of confidence, aimless future, work, and financial. The present study analyzed the factor structure of the long and short forms of the WDQ (WDQ and WDQ-SF, respectively) through confirmatory factor analysis in a sample of 262 students (M age = 21.8; SD = 2.6; 86.3% females). While the goodness-of-fit indices did not provide support for the WDQ, good fit indices were found for the WDQ-SF. Furthermore, no source of misspecification was identified, thus, supporting the factorial validity of the WDQ-SF scale. Significant positive correlations between the WDQ-SF and its subscales with worry (PSWQ), anxiety (STAI-T), and depression (BDI) were found. The internal consistency was good for the total scale and for the subscales. This work provides support for the use of the WDQ-SF, and potential uses for research and clinical purposes are discussed.

Factorial Structure of the Therapist Adherence Measure-Revised (TAM-R) Within Multisystemic Therapy

2020 ◽  
Vol 36 (2) ◽  
pp. 427-431
Author(s):  
Aurelie M. C. Lange ◽  
Marc J. M. H. Delsing ◽  
Ron H. J. Scholte ◽  
Rachel E. A. van der Rijken
Keyword(s):  
Factor Analysis ◽  
Factor Structure ◽  
Factor Model ◽  
Multisystemic Therapy ◽  
Model Fit ◽  
Validity And Reliability ◽  
Adherence Measure ◽  
Therapist Adherence ◽  
Confirmatory Factor ◽  
The Us

Abstract. The Therapist Adherence Measure (TAM-R) is a central assessment within the quality-assurance system of Multisystemic Therapy (MST). Studies into the validity and reliability of the TAM in the US have found varying numbers of latent factors. The current study aimed to reexamine its factor structure using two independent samples of families participating in MST in the Netherlands. The factor structure was explored using an Exploratory Factor Analysis (EFA) in Sample 1 ( N = 580). This resulted in a two-factor solution. The factors were labeled “therapist adherence” and “client–therapist alliance.” Four cross-loading items were dropped. Reliability of the resulting factors was good. This two-factor model showed good model fit in a subsequent Confirmatory Factor Analysis (CFA) in Sample 2 ( N = 723). The current finding of an alliance component corroborates previous studies and fits with the focus of the MST treatment model on creating engagement.

The Factor Structure and Psychometric Properties of the Resiliency Scale in Chinese Undergraduates

2010 ◽  
Vol 26 (3) ◽  
pp. 162-171 ◽  
Author(s):  
Lixia Cui ◽  
Xiujie Teng ◽  
Xupei Li ◽  
Tian P.S. Oei
Keyword(s):  
Factor Analysis ◽  
Psychometric Properties ◽  
Factor Structure ◽  
Undergraduate Students ◽  
Concurrent Validity ◽  
Higher Order ◽  
Criterion Variable ◽  
Confirmatory Factor ◽  
High Level ◽  
Chinese Undergraduates

The current study examined the factor structure and the psychometric properties of Sandra Prince-Embury’s Resiliency Scale for Adolescents (RESA) in Chinese undergraduates. A total of 726 undergraduate students were randomly divided into two subsamples: Sample A was used for the exploratory factor analysis (EFA) and Sample B was used for the confirmatory factor analysis (CFA). The EFA revealed that 56 items and a model of 10 factors with 3 higher order factors (as described by Sandra) were to be retained; CFA with Sample B confirmed this result. The overall scale and the subscales of the Chinese-RESA demonstrated a high level of internal consistency. Furthermore, concurrent validity was demonstrated by the correlation of the scale with other instruments such as the PANAS and the CSS, and the predictive validity was confirmed via three multiple regression analyses using the PANAS as a criterion variable: one for the 10 subscales of the C-RESA, one for the 3 higher order scales, and one for the total C-RESA. We concluded that the C-RESA may be used for research into Chinese undergraduates’ adaptive behaviors.

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