scholarly journals FACTORIAL STRUCTURE OF THE MORPHOLOGICAL STATUS OF FEMALE CADET HANDBALL PLAYERS

Author(s):  
Miroljub Ivanović ◽  
Uglješa Ivanović

The aim of this research was to determine the constitution and the latent structures on the sample of 124 female handball players, age 13.72 (SD = 5.16). The measuring instruments of this transversal research included the set of 12 anthropometric variables (Mišigoj-Duraković, 1995). The descriptive methods with the statistical significance of p ≤ .05, as well as exploratory factor analysis (EFA), along with the Guttman-Kaiser Criterion for reducing the number of main components using the oblimin rotation of variables were used in the data processing. The obtained results revealed the existence of the relevant four-factor hierarchical model, with 71,44% of the explained variance. The first most informative latent dimension was interpreted as the factor of longitudinal dimensionality of the skeleton (explained 37.02% of the variability), the second was subcutaneous fat (20.25% of the variability), the third is was body mass and volume (7.86% of the variability), and the forth was transversal dimensionality of the skeleton (6.31% of the explained variability). The factorial findings confirmed the hypothetical morphological structure of the extracted mutual factors of the participants, which is in accordance with the results of other researches. This study revealed practical implications and methodological limitations of this empirical research, and thus included recommendations for future research. Key words: Morphological characteristics / younger female cadets / exploratory factor analysis / handball.

Author(s):  
Eric T. Greenlee ◽  
Gregory J. Funke ◽  
Lindsay Rice

To date, conceptual explanations of workload and development of workload measures have been focused primarily on individual workload, the workload of a single operator as they perform a task. Yet, this focus on individual workload does not consider the many situations in which operators are required to collaborate, communicate, and operate as a team to achieve successful performance outcomes. In short, conceptualization and development of team workload measures have lagged behind those of individual workload. In an effort to meet the need for a conceptually-driven team workload measure, Sellers, Helton, Näswall, Funke, and Knott (2014) recently developed the team workload questionnaire (TWLQ). In developing the measure, Sellers and colleagues asked rugby players to rate their workload on TWLQ items. Subsequent exploratory factor analysis suggested that team workload was best described by three latent factors: Taskwork, the demands for task execution on the individual; Teamwork, the demands for team members to cooperate and coordinate with other teammates; and Team-Task Balancing, the demands associated with the need to manage both taskwork and teamwork – reflective of the dual task nature of working within a team. As with any novel measure of workload, it is important to continue evaluation of the measure’s sensitivity to task demands, diagnosticity regarding sources of task demands, and correlation with performance outcomes. Early research with the TWLQ has demonstrated that the measure is sensitive to changes in team task demands and the effects of training in a team UAV control task (Helton, Epling, de Joux, Funke, & Knott, 2015; Sellers, Helton, Näswall, Funke, & Knott, 2015). An additional, critical component of continued validation of the TWLQ is confirmation of the factor structure initially observed by Sellers and colleagues (2014) with data generated from a novel task. Concerns regarding generalizability are particularly germane because of variability in the nature of tasks that teams engage. Whereas some teams are tasked with executing coordinated physical activities, such as is the case in athletic contests (e.g., rugby), the task of other teams is to talk, plan, and decide (e.g., committees; McGrath, 1984). In the current study, we applied the TWLQ in a collaborative choice task (a personnel hiring decision). This team choice task required a high degree of communication, discussion, and joint decision making – team dynamics that contrast sharply with those required during an execution task. In short, the nature of the teamwork in the current study was significantly different from the teamwork evaluated by Sellers and colleagues (2014) when generating the TWLQ. Our goal in this study was to continue validation of the TWLQ by examining its factor structure with a novel dataset derived from a task requiring qualitatively different team dynamics. Confirmatory factor analysis indicated that the present data (N = 144) were a poor fit for the three-factor structure of the TWLQ. Subsequent exploratory factor analysis revealed a much more interrelated model of team workload with no clear division between the three conceptual factors described in the original validation of the TWLQ. This finding indicates that the factor structure of the TWLQ did not generalize to the present team choice task. Given that the duties of operational teams vary, it is critical that future research examine how the conceptual structure of team workload may be altered by task type.


Author(s):  
Vu Quoc Thong

Identifying factors defining the effectiveness of integrated AIS in the Enterprise Resource Planning (ERP) environment is really a challenging task. In our research, the effectiveness of integrated AIS in ERP is presented in the form of a Balanced Scorecard (BSC) model. This study analyzes data collected from 178 Vietnamese garment companies with AIS in an ERP environment. Then, Cronbach’s Alpha test and exploratory factor analysis (EFA) are conducted to assess the reliability of variables. The result identifies 28 variables from Vietnamese garment companies’ managers view grouped into 4-dimensional constructs of the BSC model that define the effectiveness of integrated AIS in an ERP environment. The conclusion on garment companies’ AIS evaluation factors paves the way for future research on other Vietnamese industries’ AIS evaluation in an ERP environment.


2021 ◽  
Vol 36 (6) ◽  
pp. 1251-1251
Author(s):  
Anthony J Longoria ◽  
Ben K Mokhtari ◽  
Tawny Meredith-Duliba ◽  
Mary A Hershberger ◽  
Patricia Champagne ◽  
...  

Abstract Objective Self-report scales are commonly used to evaluate non-specific symptoms following concussion. While several scales have been developed, few were created using a systematic process and most contain several ambiguous items that may be misinterpreted. To address this, a new theoretically-based, multidimensional measure was designed to assess Cognitive, Neuropsychiatric, and Somatic symptoms associated with concussion. This study used sophisticated psychometric techniques to develop the Texas Postconcussion Symptom Inventory (TPSI) and establish initial reliability and validity. Method Because concussion symptoms are non-specific, a pool of 76 potential items was developed and administered to a diverse clinical sample (N = 350) that included patients with concussion, epilepsy, and dementia. Polychoric correlations were utilized to remove items based on poor fit/multicollinearity and an exploratory factor analysis (EFA) with an Oblimin rotation was used to determine factor structure. Results A three-factor model best fit the data, and represented Cognitive, Neuropsychiatric, and Somatic domains as designed. Ten items were discarded, resulting in a total of 66 items. The model explained 48.5% of the total variance and contained adequate sampling (Kaiser-Meyer-Olkin measure =0.92) and sufficient item correlations (Bartlett’s Test of Sphericity, p < 0.05) for EFA. All three factor structures displayed high internal consistency (Cronbach’s α > 0.88). Conclusions The TPSI is a brief, multidimensional measure with evidence of strong internal consistency and reliability as well as distinct Cognitive, Neuropsychiatric, and Somatic symptoms associated with concussion. Future research will investigate its convergent and divergent validity in concussion as compared to existing popular symptom measures.


2007 ◽  
Vol 10 (4) ◽  
pp. 2156759X0701000
Author(s):  
Cheryl Moore-Thomas ◽  
Robert W. Lent

Although counseling expectations have been studied in late adolescent and adult samples, little is known about younger adolescents’ openness to counseling and perceptions of the counseling process. In this study, 329 middle school students completed the Expectations About Counseling Questionnaire–Brief Form (Tinsley, 1982). An exploratory factor analysis indicated support for a two-factor structure, consisting of expectations about (a) the student's role and (b) the school counselor's role. Implications are considered for future research and practical efforts to enable young adolescents to benefit more fully from responsive counseling services.


2019 ◽  
Vol 22 (2) ◽  
pp. 247-255
Author(s):  
Yazan D. Al-Mrayat ◽  
Chizimuzo T. C. Okoli ◽  
Christina R. Studts ◽  
Mary K. Rayens ◽  
Ellen J. Hahn

Background and Objectives: Approximately 65% of psychiatric inpatients experience moderate-to-severe nicotine withdrawal (NW), a set of symptoms appearing within 24 hr after an abrupt cessation or reduction of use of tobacco-containing products in those using nicotine daily for at least a couple of weeks. The Minnesota Tobacco Withdrawal Scale (MTWS) is a widely used instrument for detecting NW. However, the psychometric properties of the MTWS have not previously been examined among patients with serious mental illness (SMI) undergoing tobacco-free hospitalization. The objective of this study was to examine the validity and reliability of the MTWS among patients with SMI during tobacco-free psychiatric hospitalization. Methods: Reliability was tested by examining Cronbach’s α and item analysis. Validity was examined through hypothesis testing and exploratory factor analysis ( N = 255). Results: The reliability analysis yielded a Cronbach’s α coefficient of .763, an inter-item correlations coefficient of .393, and item-total correlations between .291 and .691. Hypothesis testing confirmed the construct validity of the MTWS, and an exploratory factor analysis yielded a unidimensional scale. Conclusion: The MTWS demonstrated adequate reliable and valid psychometric properties for measuring NW among patients with SMI. Nurses and other health-care professionals may use this instrument in clinical practice to identify patients with SMI experiencing NW. The MTWS is psychometrically sound for capturing NW during tobacco-free psychiatric hospitalization. Future research should examine the efficacy of the MTWS in measuring NW in this population over an extended period of hospitalization.


2020 ◽  
Vol 1 ◽  
Author(s):  
Paul H. P. Hanel ◽  
Punit Shah

AbstractThere is growing interest in quantifying attitudes towards autistic people, however there is relatively little research on psychometric properties of the only existing measure and its ability to predict engagement with people with autism. To begin addressing these issues, we compared three scales measuring attitudes towards autistic people following the development of two new measures. Exploratory factor analysis, across two datasets, revealed that the factor-structure of an established 16-item scale is unclear. Further, its predictive validity of intended engagement with autistic people was comparable to our novel and psychometrically robust 1- and 4-item measures of attitudes towards autistic people. We therefore conclude that a 1- or 4-item scale is sufficient to measure general attitudes towards autistic people in future research. Equally, we propose that additional research is required to develop measures that are grounded in theoretical models of attitude formation and therefore distinguish between different components of attitudes.


2011 ◽  
Vol 204-210 ◽  
pp. 1920-1923
Author(s):  
Jun Zhuo ◽  
Jia Zhen Xiao ◽  
Ming Zhou

The paper studied the quality features that are crucial to the success of HAEs websites. Firstly, the paper took a comprehensive review of literature. Secondly, focusing on user-friendliness, we identified 44 quality features, which were quantitatively measured by the questionnaire developed by us. Thirdly, data were collected from 260 subjects. Exploratory factor analysis resulted in the identification of six dimensions, which are customer service, product information and search, transaction, sale support, outlets information, accessibility. Finally, we discussed the implication and limitations of the findings and pointed out future research direction.


2020 ◽  
Author(s):  
Joseph W. Lanario ◽  
Michael Hyland ◽  
Andrew Menzies-Gow ◽  
Adel H Mansur ◽  
James W. Dodd ◽  
...  

Abstract BackgroundThe Severe Asthma Questionnaire (SAQ) is a health related quality of life (HRQoL) questionnaire validated for use in severe asthma. It is scored using the mean value of 16 items (SAQ score) in addition to a single item global rating of HRQoL (SAQ-global). The aim was to validate clinically relevant subscales using exploratory factor analysis (EFA).MethodsThe SAQ was completed, along with measures of asthma control and EQ5D-5L by patients attending six UK severe asthma centres. Clinical data were included in the analysis. EFA using principal axis factoring and oblimin rotation was used to achieve simple structure of data. Results460 patients with severe asthma participated, 65% women, mean age 51 (16-83) yrs. A three factor solution achieved best fit and showed that the SAQ items formed three distinct but inter-correlated groups of items where items were grouped in a way that was consistent with item content. The three subscales were differentially associated with clinically relevant variables (lung function and mood). Males and females interpreted the question of night disturbance in different ways.ConclusionsThis paper provides a template for best practice in the use of EFA when validating HRQoL subscales. The SAQ can be scored as three subscales with content reflecting three different constructs people with severe asthma use when making judgements about their lives. The subscale ‘My Life’ assesses the impact of severe asthma on different life activities, ‘My Mind’ assesses the perceived emotional impact and ‘My Body’ the impact of extra-pulmonary symptoms and side effects.


2016 ◽  
Vol 13 (04) ◽  
pp. 1650016 ◽  
Author(s):  
Singh Sonal Hukampal ◽  
Bhaskar Bhowmick

Innovation has been considered as one of the key drivers of economic development for any nation. In the rural context, the innovation concept is applied with the intention to determine new ways to solve traditional and emerging problems that the rural people face. The innovation network concept has in the rural context become extremely important because it assists to complement scarce resources and create new opportunities for rural development base by establishing a relationship between rural actors with other actors. Thus, the main purpose of this paper is to identify variables of innovation network and to conceptualize innovation network in the rural context. The study has been executed through a field survey of the rural entrepreneurs, through interviews and closed ended questionnaires in rural regions of Gujarat in India. This paper has used exploratory factor analysis in order to investigate factors that might explain the underlying belief of rural entrepreneurs about innovation networks. The paper finds out three factors, namely: (a) innovation network with a private organization, (b) innovation network with NGOs, and (c) innovation network with public organizations. The finding of this study revealed that production enhancement, information accessibility, skill development and entrepreneurial opportunities are considered the most important criteria for conceptualization of innovation network in the rural context. This study allows for implications to be made for rural entrepreneurship development and policy formation. In future research there remains the scope to incorporate larger sample data, greater number of variables of innovation network and conduct the study in other countries.


2019 ◽  
Vol 34 (3) ◽  
pp. 497-510
Author(s):  
Namra Shahzadi ◽  
Bushra Akram ◽  
Saima Dawood ◽  
,Fayyaz Ahmad

The current study was aimed to adapt, translate and validate The Handling Bullying Questionnaire (THBQ; Bauman, Rigby & Hoppa, 2008) into Urdu language. Present study was conducted in two phases, at the first phase THBQ was translated into Urdu language through standard procedures. Linguistic equivalence between Urdu and English version scale of THBQ was found (r = 0.75**) in pilot study. In the second phase of the study psychometric properties were established through Exploratory Factor Analysis and Confirmatory Factor Analysis. A sample of 400 participants was selected for administration of scale. Exploratory Factor Analysis retrieved 6 factors solutions in 22 items. Confirmatory Factor Analysis (CFA) confirmed five factor model with 16 items. Thus, findings indicted the Urdu version of THBQ may be valid and reliable. The questionnaire can be used in future research for the assessment of handling bullying behaviors among school children by teachers and counselors.


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