scholarly journals The relationship between visually evoked effects and concussion in youth

2021 ◽  
Author(s):  
Carlyn Patterson Gentile ◽  
Geoffrey K Aguirre ◽  
Kristy B. Arbogast ◽  
Christina L. Master
Keyword(s):  
Factor Analysis ◽  
Visual Stimulus ◽  
Symptom Burden ◽  
Similar Proportion ◽  
Flickering Light ◽  
Youth Athletes ◽  
Increased Sensitivity ◽  
The Relationship ◽  
Dimensions Of Variation ◽  
Somatic Sensations

ABSTRACTIncreased sensitivity to light is common following concussion. Viewing a flickering light can also produce uncomfortable somatic sensations like nausea or headache. Here we examined effects evoked by viewing a patterned, flickering screen in a cohort of 81 uninjured youth athletes and 84 youth with concussion. We used exploratory factor analysis and identified two primary dimensions of variation: the presence or absence of visually evoked effects, and variation in the tendency to manifest effects that localized to the eyes (e.g., eye watering), versus more generalized neurologic symptoms (e.g., headache). Based on these two primary dimensions, we grouped participants into three categories of evoked symptomatology: no effects, eye-predominant effects, and brain-predominant effects. A similar proportion of participants reported eye-predominant effects in the uninjured (33.3%) and concussion (32.1%) groups. By contrast, participants who experienced brain-predominant effects were almost entirely from the concussion group (1.2% of uninjured, 35.7% of concussed). The presence of brain-predominant effects was associated with a higher concussion symptom burden and reduced performance on visio-vestibular tasks. Our findings indicate that the experience of negative constitutional, somatic sensations in response to a dynamic visual stimulus is a salient marker of concussion and is indicative of more severe concussion symptomatology. We speculate that differences in visually evoked effects reflect varying levels of activation of the trigeminal nociceptive system.

On the Dimensionality of Measuring Tourist Satisfaction towards Homestay

2015 ◽  
Vol 8 (2) ◽  
Author(s):  
Gangaram Biswakarma
Keyword(s):  
Factor Analysis ◽  
Data Collection ◽  
Exploratory Factor Analysis ◽  
Life Style ◽  
Factor Loading ◽  
Primary Data ◽  
Cultural Performance ◽  
Latent Construct ◽  
Tourist Satisfaction ◽  
The Relationship

This study focuses on measuring tourist satisfaction towards home stay. This paper emphasized to identify the variables that are related to tourist satisfaction during tourist homestay. It is also focused on analyzing the relationship and impact of these latent construct of factors to overall tourist satisfaction towards home stay. In an attempt to visualize the purpose, tourists satisfaction in a homestay in Nepal has taken into as a case, with an aim to identify the underlying dimensions of tourist satisfaction during tourist homestay. Twenty six (26) manifest variables of homestay has been formulated to understand the dimensions. Likewise, for a conforming the latent construct (1) statement as dependent variable of overall satisfaction was developed for the purpose of the primary data collection. The manifest variables are basically focused on aspects of home stay attributes namely cultural attraction, hospitality, amenities and safety & security at the home stay destination. Post Exploratory Factor Analysis indicates factor loading for twenty two (22) items manifest variables as significant, loaded with five (5) factors of home stay attributes named as Amenities & Safety, Reception, Local Cuisine & Accommodation, Local Life style & Costumes, and Cultural Performance. This study contributes to the development of survey instrument for exploring tourist satisfaction for Home stay for future researchers.

On The Field: Examining Differences in Video Format in Sports Media Viewing

2020 ◽  
Vol 64 (1) ◽  
pp. 781-785
Author(s):  
Ragan Wilson ◽  
Christopher B. Mayhorn
Keyword(s):  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Spatial Presence ◽  
Sports Media ◽  
User Perceptions ◽  
Video Footage ◽  
Confirmatory Factor ◽  
Need To Evaluate ◽  
The Relationship ◽  
Video Format

With virtual reality’s emerging popularity and the subsequent push for more sports media experiences, there is a need to evaluate virtual reality’s use into more video watching experiences. This research explores differences in experiences between Monitor (2D) video and HMD (360-Degree) video footage by measuring user perceptions of presence, suspense, and enjoyment. Furthermore, this study examines the relationship between presence, game attractiveness, suspense, and enjoyment as explored by Kim, Cheong, and Kim (2016). Differences were assessed via a MANOVA examining specifically presence, suspense, and enjoyment while the relationships were explored via a confirmatory factor analysis. Results suggest that there was a difference between Monitor (2D) video and HMD (360-Degree) in regard to spatial presence, engagement, suspense, and enjoyment, but the previous model from Kim et al. (2016) was not a good fit to this study’s data.

scholarly journals The Application of Fuzzy Theory in the Evaluation of Visual Images of Smartphone Rear Cameras

2021 ◽  
Vol 11 (8) ◽  
pp. 3555
Author(s):  
Chien-Hsiung Chen ◽  
Zhongzhen Lin
Keyword(s):  
Factor Analysis ◽  
Fuzzy Numbers ◽  
Fuzzy Theory ◽  
Consumer Perceptions ◽  
Visual Images ◽  
Triangular Fuzzy Numbers ◽  
Potential Consumer ◽  
Comprehensive Comparison ◽  
Different Shapes ◽  
The Relationship

In the present era, technology is developing rapidly. Smartphones play a significant part in people’s lives. However, the research on smartphones mainly focuses on the area of technological realization. The purposes of this study were to examine the relationship between the various rear cameras in smartphones and consumer perceptions, and to understand consumers’ purchasing intentions and preferences. Through the methods of multidimensional scaling (MDS), factor analysis and triangular fuzzy numbers, the visual images of the smartphone rear cameras were analyzed and discussed. The results indicate that the visual images taken by different shapes of rear camera are quite distinct in the categories of innovative and fashionable, and simple and pure, but less distinct in the categories of harmonious and ordered, premium and technical, and superior and valuable. Through a comprehensive comparison, four groups whose images were similar were created. The outcome effectively reflects the potential consumer demands for smartphone rear camera patterns, providing insights for design practices in the smartphone industry.

“Mind the gap”: to succeed in marketing politics, think of social media innovation

2019 ◽  
Vol 36 (6) ◽  
pp. 806-817
Author(s):  
Patrick Amfo Anim ◽  
Frederick Okyere Asiedu ◽  
Matilda Adams ◽  
George Acheampong ◽  
Ernestina Boakye
Keyword(s):  
Social Media ◽  
Factor Analysis ◽  
Political Participation ◽  
Political Efficacy ◽  
Customer Relationship ◽  
Political Marketing ◽  
Content Type ◽  
Young Voters ◽  
Mediating Role ◽  
The Relationship

Purpose This paper aims to explore the relationships between political marketing via social media and young voters’ political participation in Ghana. Additionally, this study examines the mediating role political efficacy plays in enhancing the relationship. Design/methodology/approach With a positivist mindset, and adopting the survey strategy, data gathered from the questionnaire administered from the sampled 320 young voters (18-29 years) in Greater Accra were quantitatively analyzed. An exploratory factor analysis (EFA), confirmatory factor analysis (CFA) and structural equation modeling (SEM) were used to assess and confirm the proposed scales validity and the relationships of the research model. Findings The study revealed that a political party or candidate’s ability to achieve political participation from Ghanaian young voters’ is dependent on how effective they build customer relationship or gaining visibility through social media. In addition, the study showed that political efficacy mediates the relationship between customer relationship building or gaining visibility through social media and political participation among Ghana young voters. Thus, young voters in Ghana must see themselves to have a say in the affairs of political parties through the political messages they gather from social media platforms to enhance their political participation activities. Practical implications The results of this paper will enable political marketers and politicians not only in Ghana but across the globe, to better understand how social media as a communication tool could be used to positively influence users’ political participation. Originality/value Considering the uniqueness of this study in a Ghanaian context, this paper is the first of its kind to use the social capital theory in examining the mediating role political efficacy plays in enhancing the relationship between political marketing on social media and young voters’ political participation.

Coaches’ impact on youth athletes’ intentions to continue sport participation: The mediational influence of the coach–athlete relationship

2021 ◽  
pp. 174795412199181
Author(s):  
Meredith M Wekesser ◽  
Brandonn S Harris ◽  
Jody Langdon ◽  
Charles H Wilson
Keyword(s):  
Indirect Effects ◽  
Sport Participation ◽  
Self Determination Theory ◽  
Drop Out ◽  
Self Determination ◽  
Need Fulfillment ◽  
Sports Teams ◽  
Youth Athletes ◽  
The Relationship ◽  
Negative Relationships

About 70% of youth athletes drop out of sport by age 13. Self-determination theory has been utilised to investigate athletes’ motivations for behaviours including sport persistence (i.e. continuation) and suggests that the coach can be an influence on such motivations. Basic need fulfillment via interpersonal coaching behaviours, the coach-athlete relationship (CAR), and intentions to continue sport participation have been examined independently and in various combinations and directions, but these variables have not been examined collectively in this manner. The purpose of this study was to determine if CAR quality mediates the relationship between interpersonal coaching behaviours and intentions to continue sport participation. Surveys were administered to 148 athletes ages 11 to 16 from organised sports teams. No significant indirect effects of mediation could be established. However, there was a significant and direct effect of competence-supportive behaviours on intentions ( β = .341, p < .001). Overall, the total effects model was significant ( F(1,146) = 18.762, p < .001, adjusted R2 = .114). Significant positive relationships were shown among supportive coach behaviours and CAR quality in addition to CAR quality and intentions. Negative relationships were demonstrated among thwarting coach behaviours and CAR quality. Results support that coaches’ competence-supportive behaviours can positively impact CAR quality and intentions to continue sport participation in youth athletes.

Relationship between Knowledge Sharing, Absorptive Capacity, and Innovation Capability: Empirical studies in minimarkets

2021 ◽  
Vol 9 (1) ◽  
pp. 91
Author(s):  
Sri Raharso
Keyword(s):  
Factor Analysis ◽  
Construct Validity ◽  
Knowledge Sharing ◽  
Multiple Regression ◽  
Absorptive Capacity ◽  
Empirical Studies ◽  
Innovation Capability ◽  
West Java ◽  
Five Factors ◽  
The Relationship

This study aims to identify the relationship between knowledge sharing, innovation capabilities, and absorptive capacity. The study was conducted on 209 employees of a minimarket, in Bandung, West Java. Sampling was done incidentally. Factor analysis produces five factors for which construct validity is acceptable. Empirically, the multiple regression results support the research hypothesis. Knowledge sharing positively and significantly affects innovation capability and absorptive capacity. Furthermore, absorptive capacity partially mediates the relationship between knowledge sharing and innovation capabilities. 

scholarly journals An International Reading Literacy Study: Factor Structure of the Chinese Version of the Student Questionnaire (PIRLS-SQCV 2011)

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Joseph W. I. Lam ◽  
W. M. Cheung ◽  
Doreen W. H. Au ◽  
Hector W. H. Tsang ◽  
Wendy W. Y. So ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Factor Structure ◽  
International Comparisons ◽  
Chinese Version ◽  
Reading Literacy ◽  
Structure Model ◽  
Confirmatory Factor ◽  
Student Questionnaire ◽  
The Relationship ◽  
Home And School

The student questionnaire (PIRLS-SQ 2011) of the Progress in International Reading Literacy Study (PIRLS) was designed to gather information from pupils on reading literacy development as to aspects of pupils’ self-lives, home, and school lives across countries/districts. In order to serve the purposes of research and international comparison, the questionnaire was translated into various languages. Using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA), the current study investigates the psychometric properties of the Chinese version of the student questionnaire (PIRLS-SQCV 2011) and identifies its underlying factor structure among Chinese fourth-grade pupils in Hong Kong. A 10-factor structure model was identified and much resemblance could be drawn to the original PIRLS structure. While the similarity allows international comparisons of studies in different places following the PIRLS strategy, the findings of this study add to extant literature on the relationship between student factors and reading achievement.

scholarly journals Modeling and Analysis of the Motivations of Fast Fashion Consumers in Relation to Innovativeness

2016 ◽  
Vol 16 (4) ◽  
pp. 205-213
Author(s):  
Canan Saricam ◽  
Nazan Erdumlu
Keyword(s):  
Factor Analysis ◽  
Structural Equation Modeling ◽  
Confirmatory Factor Analysis ◽  
Structural Equation ◽  
Motivational Factors ◽  
Equation Modeling ◽  
Fast Fashion ◽  
Modeling And Analysis ◽  
Confirmatory Factor ◽  
The Relationship

Abstract In this study, fast fashion concept is investigated in order to understand the motivations of the consumers that make them adopt these products because of their willingness for the innovativeness. The relationship between the motivational factors which were named as “Social or status image” and “Uniqueness” as expressions of individuality, “Conformity” and the willingness for “Innovativeness” is analyzed using a conceptual model. Exploratory factor analysis, confirmatory factor analysis and structural equation modeling were used to analyze and validate the model. The data used for the study was obtained from 244 people living in Turkey. The findings showed that the motivational factors “Social or status image” and “Uniqueness” as expressions of individuality are influential on the consumers’ willingness for “Innovativeness”.

Stabilizing species selection in the Archaeogastropoda

Paleobiology ◽  
1981 ◽  
Vol 7 (3) ◽  
pp. 316-331 ◽  
Author(s):  
Norman L. Gilinsky
Keyword(s):  
Factor Analysis ◽  
Evolutionary Process ◽  
Species Selection ◽  
Differential Mortality ◽  
Morphometric Data ◽  
Progressive Reduction ◽  
General Process ◽  
Primary Mechanism ◽  
The Relationship ◽  
Innovative Concept

Factor analysis of morphometric data from fossil and recent Archaeogastropoda reveals that there has been a progressive reduction in the variety of archaeogastropod shell shapes through time. High and low spired genera have slowly disappeared while equidimensional forms, which have always been the most common, have become even more abundant. The taxonomic manifestation of this trend has long been appreciated and involves: 1) the extinction of most of the Pleurotomariacea, the Euomphalacea, Trochonematacea, and several other superfamilies, which collectively comprise most of the variation in shape among early archaeogastropods, and 2) the proliferation of the primarily equidimensional Trochacea and Neritacea. I suggest that this macroevolutionary trend may be explained by the general process I refer to as “stabilizing species selection.” More specifically, I suggest that the mechanism of stabilizing species selection in the case presented here may have been differential rates of origination.I believe that the innovative concept of species selection has been burdened by the adherence of its advocates to the idea that differential extinction is its primary mechanism. This preference for differential extinction is rooted in our emphasis upon differential mortality in microevolution and is not based upon data of macroevolutionary change. I argue that differential origination may be as important as differential extinction in directing macroevolutionary change and that demographical and autecological properties of species may be its agents. Recognition of the importance of differential origination will have an important impact upon our concept of the relationship between adaptation and the evolutionary process.

scholarly journals Structural Relationship among Mobile Phone Dependence, Self-Efficacy, Time Management Disposition, and Academic Procras-tination in College Students

2021 ◽  
Author(s):  
Peng Sheng Chen ◽  
Jing Li ◽  
Seung-Yong Kim
Keyword(s):  
Factor Analysis ◽  
Mobile Phone ◽  
Mobile Phones ◽  
Time Management ◽  
Self Efficacy ◽  
Academic Procrastination ◽  
Self Regulated Learning ◽  
Regulated Learning ◽  
Negative Effect ◽  
The Relationship

Background: We aimed to investigate the relationship among mobile phone dependence, self-efficacy for self-regulated learning, time management disposition, and academic procrastination in Chinese students majoring in physical education. In addition, we explored the mediating roles of self-efficacy for self-regulated learning and time management disposition in the relationship between mobile phone dependence and academic procrastination. Methods: We adopted a random sampling method to identify 324 physical education majors at five universities in Shaanxi Province, China in 2020. Data were analyzed via exploratory factor analysis, confirmatory factor analysis, correlation analysis, structural equation model analysis, and path analysis. Results: Mobile phone dependence had significant positive effects on academic procrastination (P<0.001) and self-efficacy for self-regulated learning (P<0.05) but a significant negative effect on time management disposition (P<0.001). Self-efficacy for self-regulated learning had a significant positive effect on academic procrastination (P<0.001), while time management disposition had a significant negative effect on academic procrastination (P<0.01). Notably, self-efficacy for self-regulated learning and time management disposition mediated the relationship between mobile phone dependence and academic procrastination (P<0.05). Conclusion: In addition to its direct effect on academic procrastination, mobile phone dependence exerts an indirect effect via time management disposition and self-regulated learning efficacy. Reducing students’ dependence on mobile phones is necessary for attenuating academic procrastination on university campuses. Thus, universities should aim to restrict the use of mobile phones in the classroom, actively cultivate students’ confidence in their self-regulated learning ability, and educate them regarding appropriate time values.

Sign in / Sign up

Export Citation Format

Share Document