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Title: ENHANCING SITUATIONAL AWARENESS THROUGH HAPTICS INTERACTION IN VIRTUAL ENVIRONMENT TRAINING SYSTMES.
Creator: Hale, Kelly, Stanney, Kay, University of Central Florida
Abstract / Description: Virtual environment (VE) technology offers a viable training option for developing knowledge, skills and attitudes (KSA) within domains that have limited live training opportunities due to personnel safety and cost (e.g., live fire exercises). However, to ensure these VE training systems provide effective training and transfer, designers of such systems must ensure that training goals and objectives are clearly defined and VEs are designed to support development of KSAs required. Perhaps the...
Show moreVirtual environment (VE) technology offers a viable training option for developing knowledge, skills and attitudes (KSA) within domains that have limited live training opportunities due to personnel safety and cost (e.g., live fire exercises). However, to ensure these VE training systems provide effective training and transfer, designers of such systems must ensure that training goals and objectives are clearly defined and VEs are designed to support development of KSAs required. Perhaps the greatest benefit of VE training is its ability to provide a multimodal training experience, where trainees can see, hear and feel their surrounding environment, thus engaging them in training scenarios to further their expertise. This work focused on enhancing situation awareness (SA) within a training VE through appropriate use of multimodal cues. The Multimodal Optimization of Situation Awareness (MOSA) model was developed to identify theoretical benefits of various environmental and individual multimodal cues on SA components. Specific focus was on benefits associated with adding cues that activated the haptic system (i.e., kinesthetic/cutaneous sensory systems) or vestibular system in a VE. An empirical study was completed to evaluate the effectiveness of adding two independent spatialized tactile cues to a Military Operations on Urbanized Terrain (MOUT) VE training system, and how head tracking (i.e., addition of rotational vestibular cues) impacted spatial awareness and performance when tactile cues were added during training. Results showed tactile cues enhanced spatial awareness and performance during both repeated training and within a transfer environment, yet there were costs associated with including two cues together during training, as each cue focused attention on a different aspect of the global task. In addition, the results suggest that spatial awareness benefits from a single point indicator (i.e., spatialized tactile cues) may be impacted by interaction mode, as performance benefits were seen when tactile cues were paired with head tracking. Future research should further examine theoretical benefits outlined in the MOSA model, and further validate that benefits can be realized through appropriate activation of multimodal cues for targeted training objectives during training, near transfer and far transfer (i.e., real world performance).
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Date Issued: 2006
Identifier: CFE0001414, ucf:47034
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0001414

Title: AWARENESS, KNOWLEDGE, AND ATTITUDE ABOUT ENVIRONMENTAL EDUCATION: RESPONSES FROM ENVIRONMENTAL SPECIALISTS, HIGH SCHOOL INSTRUCTORS, STUDENTS, AND PARENTS.
Creator: Lasso de la Vega, Ernesto, Holt, Larry, University of Central Florida
Abstract / Description: Over the last 30 years, environmental education has been part of the curriculum in Southwest Florida public schools. Curriculum objectives, such as, environmental attitude, knowledge, and awareness (AKA), have been investigated in the literature as ways to improve the overall behavior of future citizens toward the environment. The purpose of this study was to evaluate the aforementioned objectives among the following groups: environmental specialists, high school instructors, high school...
Show moreOver the last 30 years, environmental education has been part of the curriculum in Southwest Florida public schools. Curriculum objectives, such as, environmental attitude, knowledge, and awareness (AKA), have been investigated in the literature as ways to improve the overall behavior of future citizens toward the environment. The purpose of this study was to evaluate the aforementioned objectives among the following groups: environmental specialists, high school instructors, high school students, and the parents of the corresponding students in three Southwest Florida counties during the 2003-2004 school year. An instrument was developed to measure the groups' levels of awareness, knowledge, and attitude as well as their levels of self-efficacy. The returned surveys represented responses from: 27 environmental specialists, 15 high school instructors, 224 high school students, and 222 parents. This study found statistically significant differences among the groups regarding the levels of awareness, knowledge, and attitude as related to environmental issues. The environmental specialists scored highest for all AKA components as compared to the lowest levels presented by parent awareness, parent attitude, and high school student knowledge. In addition, factors such as socioeconomic status, ethnicity, and preference of leisure activities resulted in differences among the groups regarding their levels of environmental AKA. This study supports the evaluation of AKA levels among participants as an appropriate approach to the evaluation of environmental curriculum objectives. In addition, the study suggests a simplified measurement of AKA as an attempt to unify the parameters measured by numerous instruments found throughout environmental education literature. The results of this study may assist environmental specialists, instructors, and school districts in the evaluation of environmental education curricula.
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Date Issued: 2004
Identifier: CFE0000207, ucf:46266
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0000207

Title: PERCEPTIONS OF SEX OFFENDERS ON COLLEGE CAMPUSES.
Creator: Harvey, Dayanne, Donley, Amy, University of Central Florida
Abstract / Description: As previous research has indicated, it is not a common societal norm that sex offenders generally have a negative connotation associated with them. These types of perceptions are held without considering the varying types of sexual offenders and sexual offenses. The legislation concerning sex offenders is broad, and therefore encompasses a lot of different offenses and people. Notification of these types of offenders varies by state, but all states require sex offenders to register. A number...
Show moreAs previous research has indicated, it is not a common societal norm that sex offenders generally have a negative connotation associated with them. These types of perceptions are held without considering the varying types of sexual offenders and sexual offenses. The legislation concerning sex offenders is broad, and therefore encompasses a lot of different offenses and people. Notification of these types of offenders varies by state, but all states require sex offenders to register. A number of colleges also require sex offenders to register before attending classes. This research focuses on student's perception of sex offenders on college campuses. That is, it questions how a student's awareness of sex offender legislation and presence affect their attitudes and perceptions about sex offenders. This thesis was intended to research the UCF student's awareness of sex offenders (legislation and presence) in relation how it effects their perception of sex offenders. Students were surveyed and asked questions based on their knowledge, awareness, and opinion of sex offenders in general and at the college level. Results collected suggested that informing students does make them more aware of sex offenders. However, the heightened awareness does not improve the negative perception student's held about sex offenders. After conducting the study, it is my hope that it will aid in better understanding student perceptions of sex offenders in terms of how effective notification and awareness are.
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Date Issued: 2013
Identifier: CFH0004470, ucf:45142
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH0004470

Title: AWARENESS OF INCREASED RISK FOR HEART DISEASE AND CARDIOVASCULAR RISK FACTORS IN WOMEN WITH SYSTEMIC LUPUS ERYTHEMATOSUS.
Creator: Weinstein, Patricia, Dennis, Karen, University of Central Florida
Abstract / Description: Women with systemic lupus erythematosus (SLE) develop cardiovascular disease (CVD) earlier and at a more accelerated rate compared to women without SLE. Many women with SLE are unaware of their increased risk despite years spent in the health care system, thus giving the atherogenic process time to accrue damage. Research has not explained fully why women with SLE are unaware of their increased risk for CVD or why awareness does not correspond to risk-educing behaviors. Stage theories of...
Show moreWomen with systemic lupus erythematosus (SLE) develop cardiovascular disease (CVD) earlier and at a more accelerated rate compared to women without SLE. Many women with SLE are unaware of their increased risk despite years spent in the health care system, thus giving the atherogenic process time to accrue damage. Research has not explained fully why women with SLE are unaware of their increased risk for CVD or why awareness does not correspond to risk-educing behaviors. Stage theories of behavior like the Precaution Adoption Process Model (PAPM) propose that health behavior change proceeds through qualitatively different stages, and people at one stage face similar barriers before they can progress to the next. The Common Sense Model (CSM), a self-regulatory model of health behavior, explains the emotional and cognitive processes involved in progression from one stage to the next and the formation of a personal risk/illness representation. Combining the PAPM and CSM helps understand the relationship between risk perception and adoption of risk reducing behaviors. The specific aims of this study were to assess in women with SLE: (1) general knowledge of heart disease compared to women without SLE; (2) awareness of increased CVD risk and CVD risk factors; and (3) personal and healthcare system factors that influence awareness of increased CVD risk and adoption of risk reducing behaviors. Sixty women with SLE, 18 years of age or older, were recruited to participate in this descriptive study. Data included demographic information, self-report questionnaires (perceived CVD risk, CVD risk factors, depression, physical activity), body measures (height, weight, waist circumference, blood pressure), and blood samples for physiologic markers of traditional and novel CVD risk factors (glucose, insulin, lipoprotein lipids, creatinine, C-reactive protein, homocysteine, antiphospholipid antibodies). The Beck Depression Inventory-Primary Care and the Physical Activity Disability Survey were used to determine depression and activity level respectively. General knowledge of heart disease was assessed using the American Heart Association (AHA) National Survey on women's awareness of heart disease. Logistic regression was used to categorize participants into subgroups according to perceived risk and identify important factors that influenced their PAPM stage categorization. Women with SLE in this study were more aware of women's leading cause of death than United States women who responded to the 2006 AHA survey (73% v 57%), but fewer than 25% perceived themselves at increased CVD risk. Age was a significant predictor (p=0.05) for awareness of increased risk; younger age correlated with increased awareness. Most women received information about heart disease from public media. On average, women had 4 CVD risk factors, but they perceived they had only 2. The number of perceived risk factors predicted adoption of risk reducing behaviors (p=0.03). Women in this study with SLE underestimated their CVD risk factors and did not personalize their increased CVD risk. Healthcare providers' identification and discussion of CVD risk factors in women with SLE may enhance their risk awareness and the adoption of risk reducing behaviors. This information may contribute to the development of stage-matched interventions, a potentially more effective and efficient approach than a generic program of risk-reduction, especially in individuals with SLE who face the additional burden of a chronic illness.
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Date Issued: 2009
Identifier: CFE0002755, ucf:48138
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002755

Title: Transient Motel.
Creator: Hammond, Bryce, Kim, Joo, Price, Mark, Isenhour, David, University of Central Florida
Abstract / Description: (")Transient Motel(") is an exhibition that investigates the interactions of people and physical environments in low-income areas of Daytona Beach, Florida. The purpose of the exhibition is to raise social awareness of low-income communities among the public through visual art.Interactions between motel guests were documented as first-hand sound recordings of conversations, interviews and other activities. These recordings are projected through speakers within a constructed life-sized replica...
Show more(")Transient Motel(") is an exhibition that investigates the interactions of people and physical environments in low-income areas of Daytona Beach, Florida. The purpose of the exhibition is to raise social awareness of low-income communities among the public through visual art.Interactions between motel guests were documented as first-hand sound recordings of conversations, interviews and other activities. These recordings are projected through speakers within a constructed life-sized replica of the motel rooms in which they were recorded. Found and appropriated furniture and fixtures from the actual rooms are arranged within the replica as objects of art to familiarize the public with conditions of poverty.During my exhibition, the public is encouraged to participate by entering and exploring the replica of the motel room. The participant experiences authentic objects, sounds and smells of Daytona Beach motel rooms that have been inhabited by victims of transient poverty.?
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Date Issued: 2013
Identifier: CFE0004688, ucf:49868
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004688

Title: An Exploratory Mixed Methods Study of Student Awareness in Expressing Emotions and Identifying the Emotions of Others: Through the Mirror Looking Glass.
Creator: Duff, Christine, Hines, Rebecca, Dieker, Lisa, Reyes, Maria, Butler, S. Kent, University of Central Florida
Abstract / Description: The goal of this research was to determine how the self-awareness process of expressing emotions and identifying emotions of others was impacted during a mirror-based intervention for first grade students from inclusive classrooms. The study investigated the extent that a two-way mirror display helped eight students increase their level of awareness when expressing emotions and identifying the emotions of others. Traditional assessment measures for assessing empathy and accuracy in perception...
Show moreThe goal of this research was to determine how the self-awareness process of expressing emotions and identifying emotions of others was impacted during a mirror-based intervention for first grade students from inclusive classrooms. The study investigated the extent that a two-way mirror display helped eight students increase their level of awareness when expressing emotions and identifying the emotions of others. Traditional assessment measures for assessing empathy and accuracy in perception of emotions of others have relied on binary, forced choice responses that have not addressed a student's level of awareness, or increased awareness in identifying the emotions of others. Further, binary tests of theory of mind (ToM) and empathy that provide 'either/or' assessment do not account for an individual's level of ToM or empathy in identifying emotions of others, when 100% accuracy is not achieved 100% of the time. A two-way mirror served to provide a real time, real world opportunity for students to examine their own expression of a given emotion, while the student on the non-reflected side simultaneously evaluated the accuracy of that emotion. The accuracy of the projected emotion was evaluated and results indicated an increase in accuracy of expressing emotions. This research study introduced a three choice assessment measure, 'The Emotion Word Assessment (EWA) that provided students choices in identifying their peers' emotion, and was used to assess accuracy and increases in correct choices, with concomitant changes in student own awareness of their emotion expression and the awareness of others' emotions. Constructs of ToM, empathy, cognitive empathy and affective empathy, cognitive processing, compassion, and sympathy were examined and recommendations for future empathy and emotional assessment provided.
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Date Issued: 2017
Identifier: CFE0006737, ucf:51867
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006737

Title: CHANGES IN RUNNING AND MULTIPLE OBJECT TRACKING PERFORMANCE DURING A 90-MINUTE INTERMITTENT SOCCER PERFORMANCE TEST (iSPT). A PILOT STUDY.
Creator: Girts, Ryan, Wells, Adam, Stout, Jeffrey, Fukuda, David, Hoffman, Jay, University of Central Florida
Abstract / Description: Multiple object tracking (MOT) is a cognitive process that involves the active processing of dynamic visual information. In athletes, MOT speed is critical for maintaining spatial awareness of teammates, opponents, and the ball while moving at high velocities during a match. Understanding how MOT speed changes throughout the course of a competitive game may enhance strategies for maintaining optimal player performance. The objective of this study was to examine changes in MOT speed and...
Show moreMultiple object tracking (MOT) is a cognitive process that involves the active processing of dynamic visual information. In athletes, MOT speed is critical for maintaining spatial awareness of teammates, opponents, and the ball while moving at high velocities during a match. Understanding how MOT speed changes throughout the course of a competitive game may enhance strategies for maintaining optimal player performance. The objective of this study was to examine changes in MOT speed and running performance during a 90-minute intermittent soccer performance test (iSPT). A secondary purpose was to examine the relationship between aerobic capacity and changes in MOT speed.Seven competitive female soccer players age: 20.4 (&)#177; 1.8 y, height: 166.7 (&)#177; 3.2 cm, weight: 62.4 (&)#177; 4.0 kg, VO2max: 45.8 (&)#177; 4.6 ml/kg/min-1) completed an intermittent soccer performance test (iSPT) on a Curve(TM) non-motorized treadmill (cNMT). The iSPT was divided into two 45-minute halves with a 15-minute halftime [HT] interval, and consisted of six individualized velocity zones. Velocity zones were consistent with previous time motion analyses of competitive soccer matches and based upon individual peak sprint speeds (PSS) as follows: standing (0% PSS, 17.8% of iSPT), walking (20% PSS, 36.4% of iSPT), jogging (35% PSS, 24.0% of iSPT), running (50% PSS, 11.6% of iSPT), fast running (60% PSS, 3.6% of iSPT), and sprinting (80% PSS, 6.7% of iSPT). Stand, walk, jog and run zones were combined to create a low-speed zone (LS). Fast run and sprint zones were combined to create a high-speed zone (HS). MOT speed was assessed at baseline (0 min.) and three times during each half of the iSPT. Dependent t-tests and Pearson correlation coefficients were utilized to analyze the data. Across 15-minute time blocks, significant decreases in distance covered and average speed were noted for jogging, sprinting, low-speed running, high-speed running, and total distance (p's (<) 0.05). Players covered significantly less total distance during the second half compared to the first (p = 0.025). Additionally, significant decreases in distance covered and average speed were observed during the second half for the sprint and HS zones (p's ? 0.008). No significant main effect was noted for MOT speed across 15-minute time blocks. A trend towards a decrease in MOT speed was observed between halves (p = 0.056). A significant correlation was observed between the change in MOT speed and VO2max (r = 0.888, p = 0.007). The fatigue associated with 90 minutes of soccer specific running negatively influenced running performance during the second half. However, increased aerobic capacity appears to be associated with an attenuation of cognitive decline during 90-minutes of soccer specific running. Results of this study indicate the importance of aerobic capacity on maintaining spatial awareness during a match.
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Date Issued: 2018
Identifier: CFE0007183, ucf:52290
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0007183

Title: Increasing Metalinguistics Awareness as a Necessary Precursor for Preservice Teachers.
Creator: Schoonmaker, Aimee, Purmensky, Kerry, Nutta, Joyce, Folse, Keith, Clark, M. H., Mihai, Florin, University of Central Florida
Abstract / Description: Metalinguistic awareness (MA) in the context of the present study is the ability to deconstruct and analyze a language's intricate systems, and by doing so, better understand how these systems work. More specifically for the present study, the investigation focused on preservice teachers' MA in relation to grammar and its importance for their future students' understanding of language. Language is at the core of any content area in students' academic lives and it will continue to permeate all...
Show moreMetalinguistic awareness (MA) in the context of the present study is the ability to deconstruct and analyze a language's intricate systems, and by doing so, better understand how these systems work. More specifically for the present study, the investigation focused on preservice teachers' MA in relation to grammar and its importance for their future students' understanding of language. Language is at the core of any content area in students' academic lives and it will continue to permeate all aspects of their studies at all ages. As such, language-related issues should be at the front and center of preservice teachers' preparation.The present study, a quasi-experimental one-group pretest-posttest (Shadish, Cook (&) Campbell, 2002) investigated the metalinguistic awareness of preservice teachers who were enrolled in a face-to-face, undergraduate applied linguistics course at an urban research university in the United States. The metalinguistic awareness in the scope of the present study was directly related to the grammar knowledge of participants, and it was measured by an adapted instrument called ALAT. The results of the current study demonstrate that overall increase of MA is feasible (as attested by the results from research question 1). Nevertheless, further investigations (research questions 2, 3, 4, and 5) demonstrated that teachers' levels of metalinguistic awareness vary significantly. These results echoed previous findings that demonstrated that preservice teachers are not language-knowledgeable enough to deal with myriad issues that involve language, both in relation to students who are native speakers of English and also concerning ELs (Kolln (&) Hancock, 2005; Nutta et al., 2012; Pappamihiell, 2007). Preservice teachers' lack higher level metalinguistic awareness, as evidenced by their limited ability to explain grammar errors and use proper metalanguage while doing so.The main implication of the present study lies in the recommendation that more can and should be done in order to ensure that preservice teachers are receiving the appropriate amount of language-oriented preparation during their college years. The present study offers a confirmatory perspective to previous research findings which found that preservice teachers are not knowledgeable enough in relation to language. Previous studies also pointed out to this lack of preparation as a generator of feelings of inadequacy and anxiety in preservice teachers while foreseeing their future students' language struggles. Nonetheless, the present study also demonstrates that improvement can be achieved in regard to MA teacher preparedness in relatively little amount of time, especially for recognition of grammatical items such as parts of speech and parts of sentence. However, the findings demonstrate that more time is needed to ensure better results for complex grammar analyses such as explanation of grammatical errors.
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Date Issued: 2015
Identifier: CFE0005996, ucf:50779
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005996

Title: Visual Geo-Localization and Location-Aware Image Understanding.
Creator: Roshan Zamir, Amir, Shah, Mubarak, Jha, Sumit, Sukthankar, Rahul, Lin, Mingjie, Fathpour, Sasan, University of Central Florida
Abstract / Description: Geo-localization is the problem of discovering the location where an image or video was captured. Recently, large scale geo-localization methods which are devised for ground-level imagery and employ techniques similar to image matching have attracted much interest. In these methods, given a reference dataset composed of geo-tagged images, the problem is to estimate the geo-location of a query by finding its matching reference images.In this dissertation, we address three questions central to...
Show moreGeo-localization is the problem of discovering the location where an image or video was captured. Recently, large scale geo-localization methods which are devised for ground-level imagery and employ techniques similar to image matching have attracted much interest. In these methods, given a reference dataset composed of geo-tagged images, the problem is to estimate the geo-location of a query by finding its matching reference images.In this dissertation, we address three questions central to geo-spatial analysis of ground-level imagery: \textbf{1) How to geo-localize images and videos captured at unknown locations? 2) How to refine the geo-location of already geo-tagged data? 3) How to utilize the extracted geo-tags?}We present a new framework for geo-locating an image utilizing a novel multiple nearest neighbor feature matching method using Generalized Minimum Clique Graphs (GMCP). First, we extract local features (e.g., SIFT) from the query image and retrieve a number of nearest neighbors for each query feature from the reference data set. Next, we apply our GMCP-based feature matching to select a single nearest neighbor for each query feature such that all matches are globally consistent. Our approach to feature matching is based on the proposition that the first nearest neighbors are not necessarily the best choices for finding correspondences in image matching. Therefore, the proposed method considers multiple reference nearest neighbors as potential matches and selects the correct ones by enforcing the consistency among their global features (e.g., GIST) using GMCP. Our evaluations using a new data set of 102k Street View images shows the proposed method outperforms the state-of-the-art by 10 percent.Geo-localization of images can be extended to geo-localization of a video. We have developed a novel method for estimating the geo-spatial trajectory of a moving camera with unknown intrinsic parameters in a city-scale. The proposed method is based on a three step process: 1) individual geo-localization of video frames using Street View images to obtain the likelihood of the location (latitude and longitude) given the current observation, 2) Bayesian tracking to estimate the frame location and video's temporal evolution using previous state probabilities and current likelihood, and 3) applying a novel Minimum Spanning Trees based trajectory reconstruction to eliminate trajectory loops or noisy estimations. Thus far, we have assumed reliable geo-tags for reference imagery are available through crowdsourcing. However, crowdsourced images are well known to suffer from the acute shortcoming of having inaccurate geo-tags. We have developed the first method for refinement of GPS-tags which automatically discovers the subset of corrupted geo-tags and refines them. We employ Random Walks to discover the uncontaminated subset of location estimations and robustify Random Walks with a novel adaptive damping factor that conforms to the level of noise in the input. In location-aware image understanding, we are interested in improving the image analysis by putting it in the right geo-spatial context. This approach is of particular importance as the majority of cameras and mobile devices are now being equipped with GPS chips. Therefore, developing techniques which can leverage the geo-tags of images for improving the performance of traditional computer vision tasks is of particular interest. We have developed a location-aware multimodal approach which incorporates business directories, textual information, and web images to identify businesses in a geo-tagged query image.
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Date Issued: 2014
Identifier: CFE0005544, ucf:50282
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005544

Title: INVESTIGATING THE EFFECTS OF 3-D SPATIALIZED AUDITORY CUES ON THE DEVELOPMENT OF SITUATION AWARENESS FOR TEAMS.
Creator: Milham, Laura, Bowers, Clint, University of Central Florida
Abstract / Description: This dissertation investigated the effects of spatialized auditory cues on the development of situation awareness for teams. Based on extant research, it was hypothesized that 3-D spatialized auditory cues can be utilized by teams to develop knowledge about team member location in addition to supporting the usage of team behaviors for developing and maintaining situation awareness. Accordingly, the study examined how situation awareness would be differentially influenced by varying the type...
Show moreThis dissertation investigated the effects of spatialized auditory cues on the development of situation awareness for teams. Based on extant research, it was hypothesized that 3-D spatialized auditory cues can be utilized by teams to develop knowledge about team member location in addition to supporting the usage of team behaviors for developing and maintaining situation awareness. Accordingly, the study examined how situation awareness would be differentially influenced by varying the type of auditory cues incorporated into virtual environment (VE) team training scenarios within the context of a MOUT team task. In general, the results of this study provided partial support for the beneficial effects of 3-D audio cues in facilitating the development of situation awareness and reducing workload. Implications are discussed in the context of design guidance for VE training systems.
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Date Issued: 2005
Identifier: CFE0000857, ucf:46653
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0000857

Title: A COMPARISON OF THREE PHONOLOGICAL AWARENESS TOOLS USED TO IDENTIFY PHONEMIC AWARENESS DEFICITS IN KINDERGARTEN-AGE CHILDREN.
Creator: Robelo, Edgard, Schwartz, Jamie, University of Central Florida
Abstract / Description: The purpose of this study was to determine if three different tests of phonological awareness: the Comprehensive Test of Phonological Processes (CTOPP) (Wagner, Torgesen, & Rashotte, 1999), The Phonological Awareness Test (PAT) (Robertson & Salter, 1997), and the Pre-Literacy Skills Screening (PLSS) (Crumrine & Lonegan, 1999) measure the same phonological awareness skills (content) in the same manner (procedures) and, whether typically-developing kindergarten-age students perform similarly on...
Show moreThe purpose of this study was to determine if three different tests of phonological awareness: the Comprehensive Test of Phonological Processes (CTOPP) (Wagner, Torgesen, & Rashotte, 1999), The Phonological Awareness Test (PAT) (Robertson & Salter, 1997), and the Pre-Literacy Skills Screening (PLSS) (Crumrine & Lonegan, 1999) measure the same phonological awareness skills (content) in the same manner (procedures) and, whether typically-developing kindergarten-age students perform similarly on each of the tests. Twenty-five kindergarten students consisting of 14 males and 11 females (mean CA of 72.24 months) participated in this study. All participants were attending the second half of kindergarten in a public school in Orlando, Florida. Prior to the administration of the three tools, all participants were administered the Fluharty Preschool Speech and Language Screening Test - Second Edition (Fluharty-2) (Fluharty, 2001) to ensure that no formal speech and/or language assessment was needed. A comparison of the CTOPP, PAT, and PLSS revealed that the PAT and CTOPP produced similar outcomes. That is, participants who performed well on one tool also did well on the other. Results of this study have shown that tasks on these two tools are comparable measures of phonological awareness known to strongly predict future reading ability. However, when the PLSS was compared to either the CTOPP or PAT, similar outcomes were not obtained. Three participants were identified "at risk" for reading disability on the PLSS. No participants were identified "at risk" on either the CTOPP or PAT. Using a standardized battery to identify children "at-risk" for reading failure and planning intervention may be more advantageous than using a screening measure like the PLSS. Even though it will take more time to complete, a comprehensive assessment battery may be of more value to the clinician. A summary, possible limitations of study, and suggestions for future research are discussed.
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Date Issued: 2006
Identifier: CFE0000924, ucf:46720
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0000924

Title: THE OFFLINE IMPACT OF CYBERBULLYING.
Creator: Ortiz, Kathleen, Donley, Amy, University of Central Florida
Abstract / Description: Over the recent years, we have seen an immense increase in technology. Though the Internet can be convenient to students, it can also bear negative repercussions. Cyberbullying has impacted millions of people across the nation hindering them in many ways. The Bullying occurs through different outlets, from websites, emails to text messages. Victims cannot truly escape the matter because it follows them wherever they may go. The intent of this thesis was to see who the victims of cyberbullying...
Show moreOver the recent years, we have seen an immense increase in technology. Though the Internet can be convenient to students, it can also bear negative repercussions. Cyberbullying has impacted millions of people across the nation hindering them in many ways. The Bullying occurs through different outlets, from websites, emails to text messages. Victims cannot truly escape the matter because it follows them wherever they may go. The intent of this thesis was to see who the victims of cyberbullying are, what the aftermath effect is, and whether they notify an adult about their situation. Using data from the School Crime Supplement based on the National Crime Victimization Survey, the findings suggest that females are victims of cyber bullying more frequently than males and that adults are not commonly notified when victimization occurs. Furthermore, the repercussions of victimization include fear of harm or attack, as well as skipping classes to avoid the problem. By exploring cyberbullying and its effect, through time studies such as this one will raise awareness in society and contribute towards the solution of cyberbullying.
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Date Issued: 2013
Identifier: CFH0004398, ucf:44978
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH0004398

Title: EMERGENT WRITING SKILLS IN PRESCHOOL CHILDREN WITH LANGUAGE IMPAIRMENT.
Creator: Pavelko, Stacey, Lieberman, R. Jane, University of Central Florida
Abstract / Description: Much research demonstrates that alphabet knowledge, phonological awareness, and emergent writing are all significant predictors of later reading and writing outcomes, and that children with language impairments (LI) are particularly at risk for later literacy difficulties. Further, children with LI consistently demonstrate depressed emergent literacy skills in the areas of phonological awareness, print concepts, and alphabet knowledge; however, little is known about their emergent writing...
Show moreMuch research demonstrates that alphabet knowledge, phonological awareness, and emergent writing are all significant predictors of later reading and writing outcomes, and that children with language impairments (LI) are particularly at risk for later literacy difficulties. Further, children with LI consistently demonstrate depressed emergent literacy skills in the areas of phonological awareness, print concepts, and alphabet knowledge; however, little is known about their emergent writing skills. Therefore, the purposes of this study were twofold: (1) to compare the emergent writing skills of preschool children with language impairment to their typically developing peers using a range of writing tasks and a detailed, consistent scoring rubric for each task; and, (2) to explore the relationships among emergent writing skills and alphabet knowledge, phonological awareness, and oral language. The participants included four groups of preschool children: 11 4-year-old children with LI; 11 4-year-old language typical (LT) children, age-matched to children with LI; 20 4-year-old children with typical language; and, 21 5-year-old children with typical language. Children with language impairment scored between 70 and 84 on the Language Index of Assessment of Literacy and Language (ALL) (Lombardino, Lieberman, & Brown, 2005), and children with typical language scored between 85 and 115. All children passed a bilateral hearing screen, scored within the normal range on a non-verbal intelligence screen, demonstrated an unremarkable developmental history relative to sensory, neurological, and motor performance, spoke English as their primary language, and had mothers with at least a high school education or equivalent. During two sessions, children were administered the ALL and five emergent writing tasks: Write Letters, Write Name, Write CVC Words, Picture Description, and Sentence Retell. The writing tasks and accompanying scoring rubrics were adopted from a previous study by Puranik and Lonigan (2009). Results indicated that children with LI demonstrated significantly less advanced letter and word writing skills than their language typical, age-matched peers. In addition, significant relationships between all emergent writing tasks and alphabet knowledge were observed for all children as well as significant relationships between oral language and phonological awareness for children with typical language. No significant relationships between any of the emergent writing tasks and phonological awareness or between oral language and alphabet knowledge were found. Further, results indicated the same developmental patterns exist in written as well as oral language for children with LI. This study has therapeutic implications for speech-language pathologists. In particular, emergent writing tasks need to be included in comprehensive assessment and intervention approaches for children with LI. Assessments need to yield accurate descriptions of emergent writing skills relevant to later literacy outcomes. Finally, integrated intervention approaches that combine initial sound awareness tasks with alphabet knowledge and emergent writing tasks may achieve the best learning outcomes.
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Date Issued: 2011
Identifier: CFE0004067, ucf:49138
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004067

Title: The use of a Phototherapy Intervention to Foster Empathy, Self-Awareness, and Self-Disclosure in Counselors-in-training using the Personal Growth Group.
Creator: Wilkes, Christopher, Hagedorn, William, Young, Mark, Hundley, Gulnora, Xu, Lihua, University of Central Florida
Abstract / Description: The researcher set out to investigate the effectiveness of a specific phototherapy intervention on counselor-in-training's empathy, self-awareness, and self-disclosure development through participation in a personal growth group using Davis' (1980) Interpersonal Reactivity Index (IRI) Govern and Marsch's (2001) Situational Self-Awareness Scale, and behavioral observations. The study also explored the relationship between the three factors. The study looked to see if there was a difference in...
Show moreThe researcher set out to investigate the effectiveness of a specific phototherapy intervention on counselor-in-training's empathy, self-awareness, and self-disclosure development through participation in a personal growth group using Davis' (1980) Interpersonal Reactivity Index (IRI) Govern and Marsch's (2001) Situational Self-Awareness Scale, and behavioral observations. The study also explored the relationship between the three factors. The study looked to see if there was a difference in the change over time between the group receiving the phototherapy intervention and those participants who did not receive the intervention. The data was collected and measured through a (a) repeated measures MANOVA, (b) independent samples t-test, and (c) Pearson product correlation. The study used 41 participants who were currently enrolled in a group counseling course at a CACREP-accredited master's program in the Southeast. The students were either on a marriage and family, mental health, or school track. Both the treatment and the comparison group consisted of four groups and met weekly for a total of 10 meetings. Each group used a manualized treatment developed by the researcher with the treatment group incorporating the use of images. The findings showed that the phototherapy intervention did not have a significant impact on affective empathy or self-awareness when compared to the comparison group. Cognitive empathy showed a significant difference between the two groups over the course of the study. There was no difference between the observations of self-disclosure for the treatment and comparison groups, and the factors of empathy, self-awareness, and self-disclosure were not correlated. The results did show a significant change for both groups when looking at self-awareness. As a whole the study attempted to fill a gap in the literature surrounding how the factors of empathy, self-awareness, and self-disclosure are taught in counselor training programs and proposed next steps for future studies.
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Date Issued: 2012
Identifier: CFE0004461, ucf:49323
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004461

Title: Simulation-Based Cognitive Workload Modeling and Evaluation of Adaptive Automation Invoking and Revoking Strategies.
Creator: Rusnock, Christina, Geiger, Christopher, Karwowski, Waldemar, Xanthopoulos, Petros, Reinerman, Lauren, University of Central Florida
Abstract / Description: In human-computer systems, such as supervisory control systems, large volumes of incoming and complex information can degrade overall system performance. Strategically integrating automation to offload tasks from the operator has been shown to increase not only human performance but also operator efficiency and safety. However, increased automation allows for increased task complexity, which can lead to high cognitive workload and degradation of situational awareness. Adaptive automation is...
Show moreIn human-computer systems, such as supervisory control systems, large volumes of incoming and complex information can degrade overall system performance. Strategically integrating automation to offload tasks from the operator has been shown to increase not only human performance but also operator efficiency and safety. However, increased automation allows for increased task complexity, which can lead to high cognitive workload and degradation of situational awareness. Adaptive automation is one potential solution to resolve these issues, while maintaining the benefits of traditional automation. Adaptive automation occurs dynamically, with the quantity of automated tasks changing in real-time to meet performance or workload goals. While numerous studies evaluate the relative performance of manual and adaptive systems, little attention has focused on the implications of selecting particular invoking or revoking strategies for adaptive automation. Thus, evaluations of adaptive systems tend to focus on the relative performance among multiple systems rather than the relative performance within a system.This study takes an intra-system approach specifically evaluating the relationship between cognitive workload and situational awareness that occurs when selecting a particular invoking-revoking strategy for an adaptive system. The case scenario is a human supervisory control situation that involves a system operator who receives and interprets intelligence outputs from multiple unmanned assets, and then identifies and reports potential threats and changes in the environment. In order to investigate this relationship between workload and situational awareness, discrete event simulation (DES) is used. DES is a standard technique in the analysis of systems, and the advantage of using DES to explore this relationship is that it can represent a human-computer system as the state of the system evolves over time. Furthermore, and most importantly, a well-designed DES model can represent the human operators, the tasks to be performed, and the cognitive demands placed on the operators. In addition to evaluating the cognitive workload to situational awareness tradeoff, this research demonstrates that DES can quite effectively model and predict human cognitive workload, specifically for system evaluation.This research finds that the predicted workload of the DES models highly correlates with well-established subjective measures and is more predictive of cognitive workload than numerous physiological measures. This research then uses the validated DES models to explore and predict the cognitive workload impacts of adaptive automation through various invoking and revoking strategies. The study provides insights into the workload-situational awareness tradeoffs that occur when selecting particular invoking and revoking strategies. First, in order to establish an appropriate target workload range, it is necessary to account for both performance goals and the portion of the workload-performance curve for the task in question. Second, establishing an invoking threshold may require a tradeoff between workload and situational awareness, which is influenced by the task's location on the workload-situational awareness continuum. Finally, this study finds that revoking strategies differ in their ability to achieve workload and situational awareness goals. For the case scenario examined, revoking strategies based on duration are best suited to improve workload, while revoking strategies based on revoking thresholds are better for maintaining situational awareness.
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Date Issued: 2013
Identifier: CFE0004927, ucf:49607
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004927

Title: CATEGORICAL PERCEPTION OF STOP CONSONANTS IN CHILDREN WITH AUTISM.
Creator: Bourdeau, Laura, Ryalls, Jack, University of Central Florida
Abstract / Description: The purpose of this study is to determine whether children with autism recognize the same perceptual voicing boundaries of stop consonants as normally developing children of the same age group. This was explored using three groups of participants: ten children with autism between the ages of 8-14, five typically developing children between the ages of 8-14, and five typically developing seven-year-old children. Children in all groups listened to initial stop consonant syllables with voicing...
Show moreThe purpose of this study is to determine whether children with autism recognize the same perceptual voicing boundaries of stop consonants as normally developing children of the same age group. This was explored using three groups of participants: ten children with autism between the ages of 8-14, five typically developing children between the ages of 8-14, and five typically developing seven-year-old children. Children in all groups listened to initial stop consonant syllables with voicing contrasts, with voiced and voiceless cognates presented. The initial consonants were altered along a voice onset time continuum within the typically perceived boundaries of each consonant. Participants were instructed to select the box containing the letter of the initial consonant they perceive when they hear each syllable. Results revealed greater difference between the responses of the children with autism when compared with the older control group, than when compared with the younger children. The responses of the children with autism were more similar to those of the children in the second control group. This could be indicative of a delay in the children with autism of perception of the categorical boundaries along the dimension of voice onset time compared to typical children‟s perception of these consonants.
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Date Issued: 2009
Identifier: CFE0002796, ucf:48126
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002796

Title: HAVE YOU HEARD? PREDICTORS OF HPV AWARENESS AMONG A RANDOM SAMPLE OF COLLEGE STUDENTS.
Creator: Arrastia, Meagan, Rivera, Fernando, University of Central Florida
Abstract / Description: College students have been identified as at high risk for contracting Human Papillomavirus (HPV) due to engaging in risky behaviors, such as binge drinking and unprotected sex. Before preventative measures like vaccination and condom usage can be promoted, awareness must be evaluated. A random sample of 438 college students was surveyed on their awareness of HPV using both paper and online surveying methods. Using binary logistic regression, HPV awareness was predicted using demographic...
Show moreCollege students have been identified as at high risk for contracting Human Papillomavirus (HPV) due to engaging in risky behaviors, such as binge drinking and unprotected sex. Before preventative measures like vaccination and condom usage can be promoted, awareness must be evaluated. A random sample of 438 college students was surveyed on their awareness of HPV using both paper and online surveying methods. Using binary logistic regression, HPV awareness was predicted using demographic measures. The majority of the sample reported having heard of HPV before. Sexually active respondents and females were significantly more likely to report awareness. Non-whites and first-generation college students were also more likely to report awareness. These demographic predictors will help identify groups needing educational and HPV intervention programs. Implications and further research is discussed.
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Date Issued: 2009
Identifier: CFE0002640, ucf:48208
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002640

Title: Supporting situation awareness through robot-to-human information exchanges under conditions of visuospatial perspective taking.
Creator: Phillips, Elizabeth, Jentsch, Florian, Sims, Valerie, Bowers, Clint, Shumaker, Randall, University of Central Florida
Abstract / Description: The future vision of military Soldier(-)robot teams is one in which Soldiers and robots work together to complete separate, but interdependent tasks that advance the goals of the mission. However, in the near term, robots will be limited in their ability to successfully perform tasks without, at least, occasional assistance from their human teammates. A need exists to design, in robots, mechanisms that can support human situation awareness (SA) regarding the operations of the robot, which...
Show moreThe future vision of military Soldier(-)robot teams is one in which Soldiers and robots work together to complete separate, but interdependent tasks that advance the goals of the mission. However, in the near term, robots will be limited in their ability to successfully perform tasks without, at least, occasional assistance from their human teammates. A need exists to design, in robots, mechanisms that can support human situation awareness (SA) regarding the operations of the robot, which humans can use to provide interventions in robot tasks. The purpose of the current study was to test the effects of information exchanges provided by a robot on the development of SA in a human partner, under differing levels of visual perspective taking, and the consequential effects on the quality of human assistance provided to a robot. After data screening, fifty-six male participants ranging in age from 18 to 29 (M= 18.89, SD= 3.412) were included in the analysis of the results. Hierarchical multiple regression and a series of ANOVAs with comparisons between individual within-subjects study conditions were conducted to analyze five Hypotheses. The results of this study revealed that if robots, through robot-to-human information exchanges, can increasingly support a human's understanding of when assistance is needed, humans will be better able to provide that assistance. As opposed to originally hypothesized, this study also showed that fewer instances in which robots share status information with their human counterparts may be more beneficial for supporting awareness, assistance, and dual task performance than more information sharing, by guarding against performance decrements that could be the result of receiving too many robot-to-human information exchanges. It was also thought that anchoring robot-to-human information sharing with spatial information in reference to the human's view of the environment would be most beneficial for supporting awareness regarding the robot and assistance provided to the robot. This notion was not supported. Instead, results suggested that if extra spatial information is added to robot-to-human information exchanges, representing that spatial information in reference to a cardinal, global-relative perspective of the environment may be better for supporting awareness and assistance than representing that information in reference to the human's view of the environment.
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Date Issued: 2016
Identifier: CFE0006162, ucf:51143
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006162

Title: The Effects of Diagnostic Aiding on Situation Awareness under Robot Unreliability.
Creator: Schuster, David, Jentsch, Florian, Szalma, James, Mouloua, Mustapha, Shumaker, Randall, University of Central Florida
Abstract / Description: In highly autonomous robotic systems, human operators are able to attend to their own, separate tasks, but robots still need occasional human intervention. In this scenario, it may be difficult for human operators to determine the status of the system and environment when called upon to aid the robot. The resulting lack of situation awareness (SA) is a problem common to other automated systems, and it can lead to poor performance and compromised safety. Existing research on this problem...
Show moreIn highly autonomous robotic systems, human operators are able to attend to their own, separate tasks, but robots still need occasional human intervention. In this scenario, it may be difficult for human operators to determine the status of the system and environment when called upon to aid the robot. The resulting lack of situation awareness (SA) is a problem common to other automated systems, and it can lead to poor performance and compromised safety. Existing research on this problem suggested that reliable automation of information processing, called diagnostic aiding, leads to better operator SA. The effects of unreliable diagnostic aiding, however, were not well understood. These effects are likely to depend on the ability of the operator to perform the task unaided. That is, under conditions in which the operator can reconcile their own sensing with that of the robot, the influence of unreliable diagnostic aiding may be more pronounced. When the robot is the only source of information for a task, these effects may be weaker or may reverse direction. The purpose of the current experiment was to determine if SA is differentially affected by unreliability at different levels of unaided human performance and at different stages of diagnostic aiding. This was accomplished by experimentally manipulating the stage of diagnostic aiding, robot reliability, and the ability of the operator to build SA unaided. Results indicated that while reliable diagnostic aiding is generally useful, unreliable diagnostic aiding has effects that depend on the amount of information available to operators in the environment. This research improves understanding of how robots can support operator SA and can guide the development of future robots so that humans are most likely to use them effectively.
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Date Issued: 2013
Identifier: CFE0005247, ucf:50577
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005247

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

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Awareness (2)	+ -
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phonological awareness (2)	+ -
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AUDITORY CUES AND TEAMS (1)	+ -
AUDITORY CUES IN VIRTUAL ENVIRONMENTS (1)	+ -
Adaptable Computer Architecture (1)	+ -
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American Civil Liberties Union (1)	+ -
Angle of Arrival (1)	+ -
Application Specific Integrated Circuit (ASIC) (1)	+ -
Application Vulnerability Characterization (1)	+ -
Art (1)	+ -
Attitude (1)	+ -
Automated vehicles (1)	+ -
Automatic Detection of Abnormal Behaviour and Threats in crowded Spaces (1)	+ -
Bias Temperature Instability (BTI) (1)	+ -
Brickstream (1)	+ -
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Bowers, Clint (2)	+ -
Donley, Amy (2)	+ -
Jentsch, Florian (2)	+ -
Jha, Sumit (2)	+ -

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