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Title: Science occupational images and aspirations of African American/ Black elementary students.
Creator: LaMothe, Saron, Hagedorn, W. Bryce, Hopp, Carolyn, Van Horn, Stacy, Blank, William, University of Central Florida
Abstract / Description: Within the United States, more than a million jobs in science and engineering (S(&)E) are projected over the next few years; yet, the Nation lacks the workforce to meet these demands. Despite the need for a more diverse, qualified workforce, African Americans/Blacks remain disproportionately underrepresented in science occupations, science degree attainment, and in science postsecondary majors. The lack of science participation is reflective of how minority secondary students view science and...
Show moreWithin the United States, more than a million jobs in science and engineering (S(&)E) are projected over the next few years; yet, the Nation lacks the workforce to meet these demands. Despite the need for a more diverse, qualified workforce, African Americans/Blacks remain disproportionately underrepresented in science occupations, science degree attainment, and in science postsecondary majors. The lack of science participation is reflective of how minority secondary students view science and science occupations as many consider the pursuit of a science career as unfavorable. Moreover, minority secondary students, who do choose to pursue science occupations, seem to possess inaccurate (or a lack of) occupational knowledge necessary to do so successfully. Therefore, an understanding of antecedents to career choice will assist educational professionals in addressing the underrepresentation of diverse populations, such as African Americans/Blacks, within the science workforce. The purpose of this study is to garner insight into the science occupational images, occupational and educational aspirations of African American/Black fourth and five grade students. Gottfredson's Theory of Circumscription and Compromise, in conjunction with extant empirical literature, serves as the foundation for the study's conceptual framework. A qualitative case study design was used. The qualitative data provided a contextual understanding of science occupational images, occupational and educational aspirations. Participant-produced drawings, questionnaires, and semi-structured interviews served as sources for data collection. Overall, participants lacked some occupational knowledge. Participants viewed scientists as mostly male and Black. Additionally, the occupation of scientist was perceived as a dangerous and of high status. Lastly, half of the participants expressed aspirations to be a scientist, while a majority expressed college educational aspirations.
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Date Issued: 2019
Identifier: CFE0007668, ucf:52493
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0007668

Title: Supervising Principals' Perceptions of Preparing New Principal Program Completers: Meeting the 2011 Florida Principal Leadership Standards.
Creator: Trimble, Wesley, Taylor, Rosemarye, Doherty, Walter, Baldwin, Gordon, Kennedy, Mary, University of Central Florida
Abstract / Description: This study sought to determine to what extend completers of School District A's Preparing New Principals Program (PNPP) are prepared to meet the 2011 Florida Principal Leadership Standards (FPLS). Major questions addressed (a) the perception of principals regarding how well prepared completers of School District A's principal preparation program were to meet the 2011 Florida Principal Leadership Standards, (b) if the perceived importance of the 2011 Florida Leadership Standards varied by...
Show moreThis study sought to determine to what extend completers of School District A's Preparing New Principals Program (PNPP) are prepared to meet the 2011 Florida Principal Leadership Standards (FPLS). Major questions addressed (a) the perception of principals regarding how well prepared completers of School District A's principal preparation program were to meet the 2011 Florida Principal Leadership Standards, (b) if the perceived importance of the 2011 Florida Leadership Standards varied by leadership level, (c) if the perceived importance of the 2011 Florida Leadership Standards varied by a school's free/reduced lunch percentage, and (d) the 2011 Florida Principal Leadership Standards perceived as the most beneficial to increasing student achievement. This mixed method study employed an online survey. The participants in this study included 46 supervising principals of Preparing New Principals Program completers from an urban school district in central Florida. Findings indicated that principals believed that Preparing New Principals Program completers were prepared to meet the 2011 Florida Principal Leadership Standards. Principals also believed that the following experiences would enhance the program: (a) more meaningful experiences that require participants to solve identified deficiencies, (b) an 18 to 24 month principal internship as opposed to the current eight-week principal internship, and (c) differentiating principal preparation based on participants' experiences and school district needs.
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Date Issued: 2013
Identifier: CFE0004949, ucf:49590
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004949

Title: The Impact of Degraded Speech and Stimulus Familiarity in a Dichotic Listening Task.
Creator: Sinatra, Anne, Sims, Valerie, Hancock, Peter, Szalma, James, Chin, Matthew, Renk, Kimberly, University of Central Florida
Abstract / Description: It has been previously established that when engaged in a difficult attention intensive task, which involves repeating information while blocking out other information (the dichotic listening task), participants are often able to report hearing their own names in an unattended audio channel (Moray, 1959). This phenomenon, called the cocktail party effect is a result of words that are important to oneself having a lower threshold, resulting in less attention being necessary to process them ...
Show moreIt has been previously established that when engaged in a difficult attention intensive task, which involves repeating information while blocking out other information (the dichotic listening task), participants are often able to report hearing their own names in an unattended audio channel (Moray, 1959). This phenomenon, called the cocktail party effect is a result of words that are important to oneself having a lower threshold, resulting in less attention being necessary to process them (Treisman, 1960). The current studies examined the ability of a person who was engaged in an attention demanding task to hear and recall low-threshold words from a fictional story. These low-threshold words included a traditional alert word, (")fire(") and fictional character names from a popular franchise(-)Harry Potter. Further, the role of stimulus degradation was examined by including synthetic and accented speech in the task to determine how it would impact attention and performance.In Study 1 participants repeated passages from a novel that was largely unfamiliar to them, The Secret Garden while blocking out a passage from a much more familiar source, Harry Potter and the Deathly Hallows. Each unattended Harry Potter passage was edited so that it would include 4 names from the series, and the word (")fire(") twice. The type of speech present in the attended and unattended ears (Natural or Synthetic) was varied to examine the impact that processing a degraded speech would have on performance. The speech that the participant shadowed did not impact unattended recall, however it did impact shadowing accuracy. The speech type that was present in the unattended ear did impact the ability to recall low-threshold, Harry Potter information. When the unattended speech type was synthetic, significantly less Harry Potter information was recalled. Interestingly, while Harry Potter information was recalled by participants with both high and low Harry Potter experience, the traditional low-threshold word, (")fire(") was not noticed by participants. In order to determine if synthetic speech impeded the ability to report low-threshold Harry Potter names due to being degraded or simply being different than natural speech, Study 2 was designed. In Study 2 the attended (shadowed) speech was held constant as American Natural speech, and the unattended ear was manipulated. An accent which was different than the native accent of the participants was included as a mild form of degradation. There were four experimental stimuli which contained one of the following in the unattended ear: American Natural, British Natural, American Synthetic and British Synthetic. Overall, more unattended information was reported when the unattended channel was Natural than Synthetic. This implies that synthetic speech does take more working memory processing power than even an accented natural speech. Further, it was found that experience with the Harry Potter franchise played a role in the ability to report unattended Harry Potter information. Those who had high levels of Harry Potter experience, particularly with audiobooks, were able to process and report Harry Potter information from the unattended stimulus when it was British Natural. While, those with low Harry Potter experience were not able to report unattended Harry Potter information from this slightly degraded stimulus. Therefore, it is believed that the previous audiobook experience of those in the high Harry Potter experience group acted as training and resulted in less working memory being necessary to encode the unattended Harry Potter information. A pilot study was designed in order to examine the impact of story familiarity in the attended and unattended channels of a dichotic listening task. In the pilot study, participants shadowed a Harry Potter passage (familiar) in one condition with a passage from The Secret Garden (unfamiliar) playing in the unattended ear. A second condition had participants shadowing The Secret Garden (unfamiliar) with a passage from Harry Potter (familiar) present in the unattended ear. There was no significant difference in the number of unattended names recalled. Those with low Harry Potter experience reported significantly less attended information when they shadowed Harry Potter than when they shadowed The Secret Garden. Further, there appeared to be a trend such that those with high Harry Potter experience were reporting more attended information when they shadowed Harry Potter than The Secret Garden. This implies that experience with a franchise and characters may make it easier to recall information about a passage, while lack of experience provides no assistance. Overall, the results of the studies indicate that we do treat fictional characters in a way similarly to ourselves. Names and information about fictional characters were able to break through into attention during a task that required a great deal of attention. The experience one had with the characters also served to assist the working memory in processing the information in degraded circumstances. These results have important implications for training, design of alerts, and the use of popular media in the classroom.
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Date Issued: 2012
Identifier: CFE0004256, ucf:49535
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004256

Title: ARE APPROACHES TO TEACHING AND/OR STUDENT EVALUATION OF INSTRUCTION SCORES RELATED TO THE AMOUNT OF FACULTY FORMAL EDUATIONAL COURSEWORK?.
Creator: Schellhase, Kristen, Boote, David, University of Central Florida
Abstract / Description: The purpose of this study was to investigate if there are correlations among an instructor's approach to teaching, student evaluation of instruction outcomes, and the amount of formal coursework in education a teacher has completed. Three research questions provided the focus for the study: (1) to determine if there is a correlation between the number of formal educational courses taken by athletic training educational program (ATEP) faculty and their approach to teaching; (2) to...
Show moreThe purpose of this study was to investigate if there are correlations among an instructor's approach to teaching, student evaluation of instruction outcomes, and the amount of formal coursework in education a teacher has completed. Three research questions provided the focus for the study: (1) to determine if there is a correlation between the number of formal educational courses taken by athletic training educational program (ATEP) faculty and their approach to teaching; (2) to determine if there is a correlation between the amount of formal educational courses taken by ATEP faculty and their students' evaluations of instruction; and (3) to determine if there is a relationship between faculty's approach to teaching and students' evaluations of instruction. The population for the study was certified athletic trainers working as full-time faculty in ATEPs in the State of Florida. Data were generated using all eligible faculty from 10 of the 13 universities in Florida that offer Athletic Training Educational Programs. The study included faculty who teach in large and small ATEPs. Faculty from public and private, large and small universities were also represented. The faculty completed questionnaires that included demographic information, the Approaches to Teaching Inventory (ATI-R) and the Students' Evaluation of Educational Quality (SEEQ) questionnaire. Based on the research findings, there is clear evidence that there is a lack of uniformity among ATEP faculty in the area of formal exposure to pedagogy and curriculum. 17.6% (n = 3) of respondents earned a bachelor's degree in physical education and 18.8% (n = 3) of respondents earned a master's degree in education, health education, or physical education. Of the 77.8% (n = 14) of respondents who completed or were in progress with a doctoral degree, 42.9% (n = 6) degrees were related to education. Faculty reported completing a mean of 9.25 courses related to education (SD = 7.39). The number of educational courses taken ranged from 0 to 25 courses. The study demonstrates that there is a correlation of large effect size between the amount of formal educational coursework and the SEEQ subscale value of "Assignments/Readings." In addition, the "Assignments/Readings" and "Learning/Academic Value" subscale scores on the SEEQ were significantly higher when instructors had completed more than 10 educational courses. The study found moderate and large correlations and medium and large effect sizes between the scores of 7 of the 8 remaining SEEQ subscales and the number of education courses taken by faculty. In addition, there was a moderate correlation and medium effect size between the total score of the SEEQ and the number of education courses taken by faculty. Though statistically non-significant, each of these correlations were positive and may demonstrate a need for the study to be replicated using greater statistical power.
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Date Issued: 2009
Identifier: CFE0002767, ucf:48128
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002767

Title: PERCEPTIONS AND THEIR ROLE IN CONSUMER DECISION-MAKING.
Creator: Khaddaria, Raman, Gerking, Shelby, University of Central Florida
Abstract / Description: This dissertation is an empirical investigation into the roles that different quantifiable and measurable perceptions play in defining individual behavior across a variety of decision-making contexts. In particular, the focus lies on smokers and the choices they make with regard to smoking and beyond. Chapter 1 analyzes a nationally representative sample of adults (23 years and older) in the United States, pertaining to the Annenberg Perception of Tobacco Risk Survey II (1999-2000). It is...
Show moreThis dissertation is an empirical investigation into the roles that different quantifiable and measurable perceptions play in defining individual behavior across a variety of decision-making contexts. In particular, the focus lies on smokers and the choices they make with regard to smoking and beyond. Chapter 1 analyzes a nationally representative sample of adults (23 years and older) in the United States, pertaining to the Annenberg Perception of Tobacco Risk Survey II (1999-2000). It is observed that three dimensions to smoking behavior viz., risk, temporality and addiction, interact to determine the smoking status of an individual. Although previous studies mostly looked into each of these dimensions in isolation, in this chapter, we empirically illustrate how perceptions on risk, time dimensions and addiction, jointly influence the smoking behavior of adults. Chapter 2 casts the smoker in the role of a parent and explores parental behavior towards the general health-risks facing their children. Using the dataset from a survey (2009), conducted in Orlando, Florida, on parents, having at least one child aged between 1 and 16 years, the chapter arrives at two findings relevant for policy: i) In each of the 'smoker' and 'non-smoker' parent categories, parents exhibit equal concern for themselves and their children, and ii) the level of concern shown by smoker-parents, towards health-risks faced by their children, is the same as that shown by their non-smoking counterparts. The analysis in this chapter also affirms the need to incorporate subjective risk assessment in willingness-to-pay (WTP) exercises to facilitate a deeper behavioral analysis of health risk valuation. Lastly, in Chapter 3, we focus on the issue of quantitative assessment of the perception of health risks from smoking. Particular interest lies in understanding how variants of a metric - namely, a survey question - have been employed in academic studies and industry-surveys, in order to measure smoking-related risk-perceptions. In the process of reviewing select tobacco-industry survey records, we analyze the implications of different features of this metric, (e.g., use of a 'probe', the 'Don't Know' option), and various interview modes (e.g. telephonic, face-to-face), for the estimates of perceived risk arrived at in these studies. The review makes clear that two aspects of health risks from smoking - the risk of contracting a smoking-related disease, as against the risk of prematurely dying from it conditional upon getting affected - have not been jointly explored so far. The dataset obtained from the Family Heart Disease and Prevention Survey (November 2010-March 2011), provides a unique opportunity to explore these two kinds of probabilities, particularly with regard to the risks of lung-cancer from smoking. Chapter 3 concludes by illustrating how individuals evaluate both these aspects of health-risks. While the probability of getting lung-cancer is found to be overestimated in conjunction with previous studies, the conditional probability of premature death is severely underestimated. Additionally, it is found that individuals' subjective assessments of either of these risk aspects predict smoking behavior in an identical manner. This calls into question the so-called 'rationality' of smoking decisions with implications for policies designed for the control of tobacco consumption.
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Date Issued: 2011
Identifier: CFE0003918, ucf:48736
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0003918

Title: The role perception of Organizational Citizenship Behavior in the Japanese hospitality industry: Culture-based characteristics and generational difference.
Creator: Negoro, Yoko, Ro, Heejung, Hara, Tadayuki, Gregory, Amy, University of Central Florida
Abstract / Description: Although a substantial amount of research on Organizational Citizenship Behavior (OCB) has been conducted, little is known about it within the context of the Japanese hospitality industry. While OCB is generally considered to be beyond ordinary job duties (extra-role), some researchers suggest that Japanese employees view OCB as part of their job (in-role). However, theoretical explanation for this phenomenon is still scant. This research aims to examine how culture-based organizational...
Show moreAlthough a substantial amount of research on Organizational Citizenship Behavior (OCB) has been conducted, little is known about it within the context of the Japanese hospitality industry. While OCB is generally considered to be beyond ordinary job duties (extra-role), some researchers suggest that Japanese employees view OCB as part of their job (in-role). However, theoretical explanation for this phenomenon is still scant. This research aims to examine how culture-based organizational characteristics (workplace harmony and customer orientation) and generation influence the role perception of OCB among Japanese hospitality employees. An online survey was developed and distributed to hospitality employees working in Japan using snowball sampling and resulting in a total of 303 participants. The results showed that Japanese culture-based characteristics, workplace harmony and customer orientation, positively influenced in-role perceptions of OCB-Altruism and OCB-General compliance. In addition, older generations showed higher in-role perception of OCB-General compliance than Generation Y. This research contributes to OCB literature by examining the impact of culture-based organizational characteristics on the employee's positive behavior that helps increase organizational performance. Workplace harmony and customer orientation in Japanese service organizations have often been noted by researchers, however they are rarely examined. This research contributes to the hospitality service management literature by documenting their impact on OCB through an empirical examination. Lastly, the findings of this study provide hospitality practitioners with a better understanding of employee citizenship behaviors in a collectivistic cultural background so that the results can aid human resources practices, including recruiting and training.
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Date Issued: 2016
Identifier: CFE0006363, ucf:51524
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006363

Title: A Formative Process Evaluation Study of Teacher Usage of a Learning Management System in a K-12 Public School.
Creator: Franzese, Victoria, Gunter, Glenda, Swan, Bonnie, Hartshorne, Richard, Vitale, Thomas, Rath, Victoria, University of Central Florida
Abstract / Description: The purpose of this study is to explore teacher perceptions, concerns, and integration of a Learning Management System (LMS) in a K-12 public school. With more educational institutions adopting LMSs, it is imperative to examine teachers' concerns regarding the tool as teachers have an important role in how effectively an innovation(-)such as an LMS(-)is implemented (Lochner, Conrad, (&) Graham, 2015). Ultimately, adoption of an innovation can be successful if teachers have an understanding of...
Show moreThe purpose of this study is to explore teacher perceptions, concerns, and integration of a Learning Management System (LMS) in a K-12 public school. With more educational institutions adopting LMSs, it is imperative to examine teachers' concerns regarding the tool as teachers have an important role in how effectively an innovation(-)such as an LMS(-)is implemented (Lochner, Conrad, (&) Graham, 2015). Ultimately, adoption of an innovation can be successful if teachers have an understanding of the components leading to the innovation's success, such as the innovation's value in enhancing both the curriculum and the students' learning experiences (Lochner et al., 2015). This study used the Concerns-Based Adoption Model (CBAM) as a main framework to not only measure implementation of the LMS, but to also increase the likelihood of the LMS effecting positive change in schools (George, Hall, (&) Stiegelbauer, 2006). The framework's Stages of Concern Questionnaire (SoCQ) was used with participants to determine teachers' concerns. The sample population for this study consisted of secondary teachers at a public high school in central Florida in 2017. Out of the 125 teachers employed at the school, a total of 36 (n = 36) participated in the online survey. Three of the teachers surveyed then participated in interviews to provide additional insight.Data was analyzed and organized into five main topics: (a) Stages of Concern Profile; (b) teacher concerns; (c) benefits of the LMS; (d) barriers to the LMS; and (e) teacher needs. An analysis of the survey data revealed that the study's survey participants, on average, had the highest concerns at Stage 0 (Unconcerned), Stage 1 (Informational) and Stage 2 (Personal), thus indicating the group conformed to a non-user profile when it comes to LMS use. An analysis of the interview data revealed an overall positive disposition toward the LMS with the self-awareness that participants have more to learn about its capabilities. Results suggested that LMS implementation should be refined in order to allow participants to advance to higher stages of concern (George et al., 2006). Further research should be conducted on other areas of LMS implementation, including the students' perceptions and concerns when it comes to using the LMS.
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Date Issued: 2017
Identifier: CFE0006739, ucf:51834
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006739

Title: At Face Value: Investigating Perception Through Photographs.
Creator: Dipaolo, Dominic, Raimundi-Ortiz, Wanda, Adams, JoAnne, Price, Mark, University of Central Florida
Abstract / Description: (")At Face Value: Investigating Perception through Portraiture(") is a body of work that examines how people process their perception in imagery. The Deadpan Aesthetic, photographic truth and American identity are discussed, as well as the amount of influence a photographer has in his work. Since perception is defined as an understanding of setting via the senses, I hope to challenge viewers by employing strategies to destabilize the viewer's reception of my photographs.
Date Issued: 2015
Identifier: CFE0005788, ucf:50052
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005788

Title: Principals' Perceptions and Self-efficacy in Relation to School Security.
Creator: Jones, Julian, Taylor, Rosemarye, Doherty, Walter, Kennedy, Mary, Wolf, Ross, University of Central Florida
Abstract / Description: Principals in the nation's schools have been tasked with managing crisis incidents that may occur with students and others on their campuses on a daily basis. The purposes of this study were to determine the differences, if any, that existed in Central Florida public school principals' perceptions regarding school security, their perceived confidence to address critical crisis incidents on their campuses, their perceptions of the likelihood critical incidents would occur, their perceptions of...
Show morePrincipals in the nation's schools have been tasked with managing crisis incidents that may occur with students and others on their campuses on a daily basis. The purposes of this study were to determine the differences, if any, that existed in Central Florida public school principals' perceptions regarding school security, their perceived confidence to address critical crisis incidents on their campuses, their perceptions of the likelihood critical incidents would occur, their perceptions of interaction with law enforcement, the critical incidents they fear the most, and their perceptions of factors impacting the incidents they fear the most. Principal subgroup mean responses to the Principal Safety and Security Perceptions Survey in the three areas of Bandura's (1997) triadic reciprocal causation were examined in the context of principals' gender, longevity, student enrollment, grade configuration, free and reduced lunch rate, presence of a law enforcement officer, and presence of a security plan. Findings revealed significant differences between categorical groups of principals in multiple areas. It was determined that significant differences in principals' perceptions warrant further study. Recommendations for practice include security policy development and practical application of noted trends.
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Date Issued: 2015
Identifier: CFE0005636, ucf:50217
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005636

Title: Environmental Physical(-)Virtual Interaction to Improve Social Presence with a Virtual Human in Mixed Reality.
Creator: Kim, Kangsoo, Welch, Gregory, Gonzalez, Avelino, Sukthankar, Gita, Bruder, Gerd, Fiore, Stephen, University of Central Florida
Abstract / Description: Interactive Virtual Humans (VHs) are increasingly used to replace or assist real humans in various applications, e.g., military and medical training, education, or entertainment. In most VH research, the perceived social presence with a VH, which denotes the user's sense of being socially connected or co-located with the VH, is the decisive factor in evaluating the social influence of the VH(-)a phenomenon where human users' emotions, opinions, or behaviors are affected by the VH. The purpose...
Show moreInteractive Virtual Humans (VHs) are increasingly used to replace or assist real humans in various applications, e.g., military and medical training, education, or entertainment. In most VH research, the perceived social presence with a VH, which denotes the user's sense of being socially connected or co-located with the VH, is the decisive factor in evaluating the social influence of the VH(-)a phenomenon where human users' emotions, opinions, or behaviors are affected by the VH. The purpose of this dissertation is to develop new knowledge about how characteristics and behaviors of a VH in a Mixed Reality (MR) environment can affect the perception of and resulting behavior with the VH, and to find effective and efficient ways to improve the quality and performance of social interactions with VHs. Important issues and challenges in real(-)virtual human interactions in MR, e.g., lack of physical(-)virtual interaction, are identified and discussed through several user studies incorporating interactions with VH systems. In the studies, different features of VHs are prototyped and evaluated, such as a VH's ability to be aware of and influence the surrounding physical environment, while measuring objective behavioral data as well as collecting subjective responses from the participants. The results from the studies support the idea that the VH's awareness and influence of the physical environment can improve not only the perceived social presence with the VH, but also the trustworthiness of the VH within a social context. The findings will contribute towards designing more influential VHs that can benefit a wide range of simulation and training applications for which a high level of social realism is important, and that can be more easily incorporated into our daily lives as social companions, providing reliable relationships and convenience in assisting with daily tasks.
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Date Issued: 2018
Identifier: CFE0007340, ucf:52115
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0007340

Title: A Psychophysical Approach to Standardizing Texture Compression for Virtual Environments.
Creator: Flynn, Jeremy, Szalma, James, Fidopiastis, Cali, Jentsch, Florian, Shah, Mubarak, University of Central Florida
Abstract / Description: Image compression is a technique to reduce overall data size, but its effects on human perception have not been clearly established. The purpose of this effort was to determine the most effective psychophysical method for subjective image quality assessment, and to apply those findings to an objective algorithm. This algorithm was used to identify the minimum level of texture compression noticeable to the human, in order to determine whether compression-induced texture distortion impacted...
Show moreImage compression is a technique to reduce overall data size, but its effects on human perception have not been clearly established. The purpose of this effort was to determine the most effective psychophysical method for subjective image quality assessment, and to apply those findings to an objective algorithm. This algorithm was used to identify the minimum level of texture compression noticeable to the human, in order to determine whether compression-induced texture distortion impacted game-play outcomes. Four experiments tested several hypotheses. The first hypothesis evaluated which of three magnitude estimation (ME) methods (absolute ME, absolute ME plus, or ME with a standard) for image quality assessment was the most reliable. The just noticeable difference (JND) point for textures compression against the Feature Similarity Index for color was determined The second hypothesis tested whether human participants perceived the same amount of distortion differently when textures were presented in three ways: when textures were displayed as flat images; when textures were wrapped around a model; and when textures were wrapped around models and in a virtual environment. The last set of hypotheses examined whether compression affected both subjective (immersion, technology acceptance, usability) and objective (performance) gameplay outcomes. The results were: the absolute magnitude estimation method was the most reliable; no difference was observed in the JND threshold between flat textures and textures placed on models, but textured embedded within the virtual environment were more noticeable than in the other two presentation formats. There were no differences in subjective gameplay outcomes when textures were compressed to below the JND thresholds; and those who played a game with uncompressed textures performed better on in-game tasks than those with the textures compressed, but only on the first in-game day. Practitioners and researchers can use these findings to guide their approaches to texture compression and experimental design.
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Date Issued: 2018
Identifier: CFE0007178, ucf:52250
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0007178

Title: Let's take a selfie! Living in a Snapchat beauty filtered world:The impact it has on women's beauty perceptions.
Creator: Cruz, Angelina, Hastings, Sally, Hanlon, Christine, Kinnally, William, University of Central Florida
Abstract / Description: Snapchat's beauty filters have become a prominent force in the social media realm. It's vital in understanding the impact in how Snapchat's beauty filters shape beauty standards among young women. This became the primary motivation of conducting this qualitative study. Six focus groups were conducted to explore the depths of why female college students between the ages of 18-25 decide to post either selfies with Snapchat's beauty filters applied or natural images. Dialectical tensions theory...
Show moreSnapchat's beauty filters have become a prominent force in the social media realm. It's vital in understanding the impact in how Snapchat's beauty filters shape beauty standards among young women. This became the primary motivation of conducting this qualitative study. Six focus groups were conducted to explore the depths of why female college students between the ages of 18-25 decide to post either selfies with Snapchat's beauty filters applied or natural images. Dialectical tensions theory was used as the foundation for this study to explore both the internal and external discursive struggles young women face when deciding to post natural or filtered selfies on their social media accounts. Integrating impression management, self-objectification, and self-esteem as components of understanding this phenomenon and using a thematic analysis to uncover prevalent and reoccurring themes discussed in the focus groups yielded remarkable results. Themes of perceptions of attractiveness, presenting a fa(&)#231;ade, and the power of self-esteem highlighted possible reasons why women were attracted in utilizing Snapchat's beauty filters or posting natural images. Findings also showed how the internal struggles between perfectionism-reality and external struggles of fitting in-standing out from the crowd became tensions women were often plagued in decision making to post natural or filtered images. This study serves as an epitome for beauty standards imposed in social media especially in HVSM (highly visual social media) sites like Snapchat and Instagram. There's limited research on Snapchat filters and the implications it has on females' overall perceptions of themselves of whether to implement filters within their photos. Understanding the reasons why women feel the need to use beauty filters or post natural selfies through a discussion-based setting embarked discoveries of how the media and society should integrate new sets of beauty standards.
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Date Issued: 2019
Identifier: CFE0007619, ucf:52519
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0007619

Title: Infectious Disease Risks in Developing Countries: A Non-Market Valuation Exercise.
Creator: Samajpati, Shreejata, Gerking, Shelby, Dickie, Mark, Caputo, Michael, Roy, Joyashree, University of Central Florida
Abstract / Description: This dissertation focuses on the non-market valuation of health-risks of malaria, an infectious disease that imposes a substantive public health burden across the globe, hitting particularly hard the tropical developing nations of Africa and Asia. The United Nations Millennium Development Goals include malaria control as a priority and large investments are underway to promote effective prevention and treatment. Despite such concerted supply-side efforts, malaria-related mortality and...
Show moreThis dissertation focuses on the non-market valuation of health-risks of malaria, an infectious disease that imposes a substantive public health burden across the globe, hitting particularly hard the tropical developing nations of Africa and Asia. The United Nations Millennium Development Goals include malaria control as a priority and large investments are underway to promote effective prevention and treatment. Despite such concerted supply-side efforts, malaria-related mortality and morbidity still abound due to a complex interface of factors like climate-change, poverty, inadequate control behavior, infection and prevention externalities, parasite resistance etc. This research project digs into the demand-side of the health problem, considers the "externality" dimension to prevention, and primarily asks the question: how do individuals in developing countries view competing disease-control (prevention) measures, viz. a publicly-administered community-level malaria control measure as against private preventive choices. A theoretical model is developed to help explore the public-private interplay of health risks of malaria. The malaria-endemic regions of Kolkata (India) and its rural fringes comprise the site for an empirical investigation. A field survey (Malaria Risk and Prevention Survey, October-December, 2011) incorporating a mix of stated and revealed preference techniques of health valuation is implemented. Risk-perceptions of respondents are elicited using a measurable visual-aid and individuals' perceived valuations of health-risk reductions, randomly offered with the public and private health treatments, are empirically ascertained. Using a Likelihood Ratio Test on the structural risk parameters, it is seen that individuals' valuations of health risk reductions are the same across the private and public treatments. The comparative valuation exercise, thus, corroborates the externality dimension to malaria control, calling for greater public action to combat malaria. The viability of such a scaled-up public malaria program, in the context of Kolkata, is discussed by comparing the public treatment willingness to pay estimates with the annual estimated costs that the Kolkata Municipal Corporation, the civic body in the city of Kolkata, maintains on account of vector control. Results from the comparative valuation exercises also support the idea that private prevention is generally responsive to prevention costs, indicating the importance of price incentives to induce greater prevention. The issues of health valuation and price sensitivity are further explored across various split-samples differentiated on the basis of socio-economic attributes, disease exposure, actual prevention efforts and perceived malaria risks of survey respondents. Such auxiliary exercises help analyze the valuation question in greater depth, and generate policy insights into the potential factors that shape private prevention behavior.
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Date Issued: 2012
Identifier: CFE0004594, ucf:49195
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004594

Title: Visuo-spatial abilities in remote perception: A meta-analysis of empirical work.
Creator: Fincannon, Thomas, Jentsch, Florian, Sims, Valerie, Bowers, Clint, Chen, Jessie, University of Central Florida
Abstract / Description: Meta-analysis was used to investigate the relationship between visuo-spatial ability and performance in remote environments. In order to be included, each study needed to examine the relationship between the use of an ego-centric perspective and various dimensions of performance (i.e., identification, localization, navigation, and mission completion time). The moderator analysis investigated relationships involving: (a) visuo-spatial construct with an emphasis on Carroll's (1993)...
Show moreMeta-analysis was used to investigate the relationship between visuo-spatial ability and performance in remote environments. In order to be included, each study needed to examine the relationship between the use of an ego-centric perspective and various dimensions of performance (i.e., identification, localization, navigation, and mission completion time). The moderator analysis investigated relationships involving: (a) visuo-spatial construct with an emphasis on Carroll's (1993) visualization (VZ) factor; (b) performance outcome (i.e., identification, localization, navigation, and mission completion time); (c) autonomy to support mission performance; (d) task type (i.e., navigation vs. reconnaissance); and (e) experimental testbed (i.e., physical vs. virtual environments). The process of searching and screening for published and unpublished analyses identified 81 works of interest that were found to represent 50 unique datasets. 518 effects were extracted from these datasets for analyses.Analyses of aggregated effects (Hunter (&) Schmidt, 2004) found that visuo-spatial abilities were significantly associated with each construct, such that effect sizes ranged from weak (r = .235) to moderately strong (r = .371). For meta-regression (Borenstein, Hedges, Figgins, (&) Rothstein, 2009; Kalaian (&) Raudenbush, 1996; Tabachnick (&) Fidell, 2007), moderation by visuo-spatial construct (i.e., focusing on visualization) was consistently supported for all outcomes. For at least one of the outcomes, support was found for moderation by test, the reliability coefficient of a test, autonomy (i.e. to support identification, localization, and navigation), testbed (i.e., physical vs. virtual environment), intended domain of application, and gender. These findings illustrate that majority of what researchers refer to as (")spatial ability(") actually uses measures that load onto Carroll's (1993) visualization (VZ) factor. The associations between this predictor and all performance outcomes were significant, but the significant variation across moderators highlight important issues for the design of unmanned systems and the external validity of findings across domains. For example, higher levels of autonomy for supporting navigation decreased the association between visualization (VZ) and performance. In contrast, higher levels of autonomy for supporting identification and localization increased the association between visualization (VZ) and performance. Furthermore, moderation by testbed, intended domain of application, and gender challenged the degree to which findings can be expected to generalize across domains and sets of participants.
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Date Issued: 2013
Identifier: CFE0004680, ucf:49858
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004680

Title: CLAIMS OF MISTAKEN IDENTITY:AN EXAMINATION OF U.S. TELEVISION FOOD COMMERCIALS AND THE ADULT OBESITY ISSUE.
Creator: Delgado, Cristina, DeLorme, Denise, University of Central Florida
Abstract / Description: Obesity is one of the major public health issues in the United States, often regarded as part of a global crisis. Companies invest billions of dollars each year towards television advertising campaigns aimed at convincing audiences how their ground-breaking discovery 'battles the bulge' or somehow offers an increased health benefit. This study examined how advertisers presented health-related claims, including health and nutrient-content claims, in U.S. adult-targeted television food...
Show moreObesity is one of the major public health issues in the United States, often regarded as part of a global crisis. Companies invest billions of dollars each year towards television advertising campaigns aimed at convincing audiences how their ground-breaking discovery 'battles the bulge' or somehow offers an increased health benefit. This study examined how advertisers presented health-related claims, including health and nutrient-content claims, in U.S. adult-targeted television food commercials. The claims were compared to FTC, FDA, and USDA laws, regulations, and recommendations. A content analysis of food advertising was conducted of commercials from major and cable network programs broadcast during prime-time in the first quarter of 2009. The majority of claims match current regulations when compared to Federal references. The results show that Nutrient and Wellness claims were the most frequently cited. The type of benefit, Healthy Eating, emerged almost 3 times more than any other benefit type. This is also similar to those results which suggest advertisers' intentions were to promote overall wellness in their content delivery. As such, the Wellness Approach was identified and conceptualized, leading towards full development of a Wellness Effect theory. Implications and future research opportunities are discussed on both a theoretical and practical level.
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Date Issued: 2009
Identifier: CFE0002565, ucf:48260
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002565

perceptions (19)	+ -
perception (18)	+ -
Perception (11)	+ -
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science (3)	+ -
self-efficacy (3)	+ -
students (3)	+ -
survey (3)	+ -
teacher perceptions (3)	+ -
Classroom (2)	+ -
Direct Perception (2)	+ -
Gender (2)	+ -
Immersion (2)	+ -
K-12 (2)	+ -
Kinematics (2)	+ -
Performance (2)	+ -
Teacher Perceptions (2)	+ -
anthropomorphism (2)	+ -
auditory perception (2)	+ -
campus (2)	+ -
college students (2)	+ -
crime (2)	+ -
education (2)	+ -
ethnicity (2)	+ -
face perception (2)	+ -
gifted (2)	+ -
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Sims, Valerie (7)	+ -
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Taylor, Rosemarye (5)	+ -

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