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- Title
- An investigation of physiological measures in a marketing decision task.
- Creator
-
Lerma, Nelson, Karwowski, Waldemar, Elshennawy, Ahmad, Xanthopoulos, Petros, Reinerman, Lauren, University of Central Florida
- Abstract / Description
-
The objective of the present study was to understand the use of physiological measures as an alternative to traditional market research tools, such as self-reporting measures and focus groups. For centuries, corporations and researchers have relied almost exclusively on traditional measures to gain insights into consumer behavior. Oftentimes, traditional methods have failed to accurately predict consumer demand, and this has prompted corporations to explore alternative methods that will...
Show moreThe objective of the present study was to understand the use of physiological measures as an alternative to traditional market research tools, such as self-reporting measures and focus groups. For centuries, corporations and researchers have relied almost exclusively on traditional measures to gain insights into consumer behavior. Oftentimes, traditional methods have failed to accurately predict consumer demand, and this has prompted corporations to explore alternative methods that will accurately forecast future sales. One the most promising alternative methods currently being investigated is the use of physiological measures as an indication of consumer preference. This field, also referred to as neuromarketing, has blended the principles of psychology, neuroscience, and market research to explore consumer behavior from a physiological perspective. The goal of neuromarketing is to capture consumer behavior through the use of physiological sensors. This study investigated the extent to which physiological measures where correlated to consumer preferences by utilizing five physiological sensors which included two neurological sensors (EEG and ECG) two hemodynamic sensors (TCD and fNIR) and one optic sensor (eye-tracking). All five physiological sensors were used simultaneously to capture and record physiological changes during four distinct marketing tasks. The results showed that only one physiological sensor, EEG, was indicative of concept type and intent to purchase. The remaining four physiological sensors did not show any significant differences for concept type or intent to purchase.Furthermore, Machine Learning Algorithms (MLAs) were used to determine the extent to which MLAs (Na(&)#239;ve Bayes, Multilayer Perceptron, K-Nearest Neighbor, and Logistic Regression) could classify physiological responses to self-reporting measures obtained during a marketing task. The results demonstrated that Multilayer Perceptron, on average, performed better than the other MLAs for intent to purchase and concept type. It was also evident that the models faired best with the most popular concept when categorizing the data based on intent to purchase or final selection. Overall, the four models performed well at categorizing the most popular concept and gave some indication to the extent to which physiological measures are capable of capturing intent to purchase. The research study was intended to help better understand the possibilities and limitations of physiological measures in the field of market research. Based on the results obtained, this study demonstrated that certain physiological sensors are capable of capturing emotional changes, but only when the emotional response between two concepts is significantly different. Overall, physiological measures hold great promise in the study of consumer behavior, providing great insight on the relationship between emotions and intentions in market research.
Show less - Date Issued
- 2015
- Identifier
- CFE0006345, ucf:51563
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006345
- Title
- AN INVESTIGATION OF PRINCIPALS' ATTITUDES TOWARD THE KNOWLEDGE AND USE OF LEARNING STYLES IN THERAPEUTIC SETTINGS.
- Creator
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Pancoast, Renee, Taylor, Rosemarye, University of Central Florida
- Abstract / Description
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In March, 2006 the Principal's Attitudes Toward the Knowledge, Value, and Application of Learning Styles with Students in Therapeutic Settings survey developed by the author was distributed to 120 principals belonging to the National Association of Therapeutic Schools and Programs. Two mailings yielded a return of 68 (56.6%) usable survey instruments from which principals' self-reporting on knowledge, value and application of learning styles was examined. Focus for this study was...
Show moreIn March, 2006 the Principal's Attitudes Toward the Knowledge, Value, and Application of Learning Styles with Students in Therapeutic Settings survey developed by the author was distributed to 120 principals belonging to the National Association of Therapeutic Schools and Programs. Two mailings yielded a return of 68 (56.6%) usable survey instruments from which principals' self-reporting on knowledge, value and application of learning styles was examined. Focus for this study was provided through three research questions: (a) to determine to what extent principals in therapeutic settings self-reported general knowledge of learning style applications, (b) to determine to what extent principals exhibit positive attitudes toward the use of learning style theory- supported instructional methods and materials, and (c) to determine to what extent principals in therapeutic settings support the application of learning style theory. All administrators reported general knowledge of learning style theories, three basic learning styles, and matching teaching strategies with learning styles. All administrators believed that students do exhibit different learning styles, learning styles have a place in education, and teachers should receive learning style training. They also expressed the belief that learning styles impact student learning, matching teaching strategies to learning styles was important for academic success, a learning style inventory was necessary, and matching mental health disorders to learning styles was important for academic achievement. The most documented change due to learning style-based instruction was evidenced by test scores and earned grades. All administrators wanted to learn more about learning styles. Almost 90% of administrators indicated that they were providing learning style training. Almost 100% (95.6%) reported they observed improvement on academic achievement due to learning style-based instruction.
Show less - Date Issued
- 2006
- Identifier
- CFE0001249, ucf:46890
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001249
- Title
- AN INVESTIGATION OF PROSOCIAL RULE BREAKING WITHIN THE CASUAL RESTAURANT INDUSTRY.
- Creator
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Curtis, Catherine, Dickson, Duncan, University of Central Florida
- Abstract / Description
-
In the hospitality industry, the role of the frontline employee is integral. These employees are the face of the organization and have a strong role in shaping and forming the opinions of consumers by way of their product and service delivery. Therefore, the decisions an employee makes during the product or service delivery is critical in maintaining the relationship with the customer. Employees may be faced with opportunities to better service a customer at the cost of breaking an...
Show moreIn the hospitality industry, the role of the frontline employee is integral. These employees are the face of the organization and have a strong role in shaping and forming the opinions of consumers by way of their product and service delivery. Therefore, the decisions an employee makes during the product or service delivery is critical in maintaining the relationship with the customer. Employees may be faced with opportunities to better service a customer at the cost of breaking an organizational rule or procedure. When an employee is faced with this dilemma and decides to break the rule on the behalf of the customer knowing the risks involved, this is called prosocial rule breaking. One distinct difference between this concept and general rule breaking is that this is performed as a nonselfish gesture; the employee does not receive any personal benefit. To examine this further, this study investigated the overall propensity to participate in prosocial rule breaking and the impact of the Big Five personality dimensions on prosocial rule breaking. To gain a better understanding of these constructs, a review of literature related to ethical decision making, prosocial behavior, and the five factor theory of personality was conducted. To investigate the research objectives, a purposive sample of frontline employees from a nationally branded restaurant chain completed a four part self-administered questionnaire by answering questions on the five factor personality dimensions through the Big Five Inventory (BFI), a restaurant based scenario followed by MorrisonÂÂ's (2006) prosocial rule breaking scale, a section on demographic information, and an open ended section for qualitative comments. Overall, three-hundred and five (305) usable questionnaires were completed and interpreted. The results demonstrated that this sample of restaurant employees revealed a moderate propensity for prosocial rule breaking. Moreover, the results revealed that the Agreeableness dimension is the most common personality dimension for this group of restaurant employees, but the Conscientiousness domain was the best predictor of oneÂÂ's propensity not to participate in prosocial rule breaking. The implications for managers from this study indicate a need for managers to recognize and encourage prosocial behaviors from their employees. They also need to understand which personality domains contribute to prosocial behavior, which can ultimately have implications for hiring, selection, and training.
Show less - Date Issued
- 2010
- Identifier
- CFE0003075, ucf:48316
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003075
- Title
- AN INVESTIGATION OF SCHOLAR-BALLER AND NON SCHOLAR-BALLER DIVISION I FOOTBALL STUDENT-ATHLETES' ACADEMIC, ATHLETIC, INTRINSIC MOTIVATION AND ATHLETIC IDENTITY.
- Creator
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Rasmussen, Janet, Holt, Larry, University of Central Florida
- Abstract / Description
-
As less than 3 % of student-athletes go on to play sport professionally, it is important that they are prepared for careers outside of athletics (Susanj & Stewart, 2005). Many football student-athletes have low grade point averages and graduation rates. Universities incorporate academic motivational programs to help combat low academic performance. One unique program, Scholar-Baller, utilizes popular culture within its curriculum to bridge the gap between academics and athletics. This...
Show moreAs less than 3 % of student-athletes go on to play sport professionally, it is important that they are prepared for careers outside of athletics (Susanj & Stewart, 2005). Many football student-athletes have low grade point averages and graduation rates. Universities incorporate academic motivational programs to help combat low academic performance. One unique program, Scholar-Baller, utilizes popular culture within its curriculum to bridge the gap between academics and athletics. This dissertation examined the differences between Scholar-Baller and Non Scholar-Baller Division I football student-athletes' motivation (academic, athletic, intrinsic) and athletic identity using expectancy-value theory and self-affirmation theory as its framework. In addition, the effect of race/ethnicity (African-American, White American and Other race/ethnicity) and Scholar-Baller participation on Division I football student-athletes' motivation (academic, athletic, intrinsic) and athletic identity was examined. Expectancy-value theory defines motivation as both the expectation of the student's belief about the final outcome of a task, and the values the student gives to the task. A student either has a positive, negative, or neutral expectation of the completed task's outcome (Williams, Anderson & Winett, 2005; Xiang, McBRide & Bruene, 2006). This framework allows for exploration of student athletes' academic expectations and values. Self-affirmation theory explains that when students focus on important identities and values, they can become less defensive towards threatening information. Therefore, when receiving negative academic feedback, student-athletes using self-affirmation techniques may be more confident, open-minded and receptive towards the threatening information. Three instruments were used to collect data. The Student-athletes' Motivation toward Sports and Academics Questionnaire SAMSAQ) was used to assess academic and athletic motivation, while the Motivated Strategies for Learning Questionnaire (MSLQ) was used to assess intrinsic motivation towards academics. Lastly, the Athletic Identity Measurement Scale (AIMS) was used to investigate athletic identity. Four universities (two Scholar-Baller and two Non Scholar-Baller) were chosen for their similar academic and athletic performance. Using the Statistical Package for the Social Sciences: Graduate Pack 16 for Windows, a Multiple Analysis of Variance (MANOVA) and Analyses of Variance (ANOVA) were run to determine if significant differences exist between the Scholar-Baller and Non Scholar-Baller football student-athletes' academic, athletic, intrinsic motivation and athletic identity. These tests revealed that Scholar-Baller football student-athletes had significantly lower academic and athletic motivation than Non Scholar-Baller football student-athletes. Having low academic expectations and little value for academics is consistent with student-athlete subculture. However, these findings were in contrast to what was expected. In addition, Scholar-Baller football student-athletes had significantly higher athletic identity than Non Scholar-Baller football student-athletes.This finding is also consistent with the literature on student-athletes. As student-athletes must be motivated athletically to perform at intercollegiate sports, it is not surprising to find high athletic identity among the Scholar-Baller football student-athletes. In fact, studies have suggested that high athletic identity correlates with high academic performance (Harrison, Stone, Shapiro, Yee, Boyd & Rullan, 2009; Sellers, Chavous & Brown, 2001). One Scholar-Baller university in this study reported higher grade point averages since the inception of the Scholar-Baller program (2.37 in Fall 2004 to 2.68 in Spring 2006). Scholar-Baller curriculum utilizes self-affirmation exercises to affirm student- athletes athletically and influence more acceptance of academic criticism. Scholar-Baller football student-athletes are more affirmed in their athletic role which may lead to academic success. This dissertation also investigated differences between Scholar-Baller and Non Scholar-Baller football student-athletes' academic, athletic, intrinsic motivation and athletic identity in relation to race/ethnicity. Three groups, comprised of African-American, White American and Other race/ethnicity, were used to compare Scholar-Baller and Non Scholar-Baller football student-athletes. No significant differences were found. However, it was noted that Scholar-Baller African-American football student-athletes had higher academic, athletic and intrinsic motivation than Scholar-Baller White American football student-athletes. This finding is surprising given the previous research indicating African-American student-athletes' low academic motivation. As this dissertation investigated only differences between Scholar-Baller and Non Scholar football student-athletes' motivation and identity, further research needs to be done to further explicate these differences. Also, athletic identity should be further investigated among football student-athletes to determine its role in academic performance. Furthermore, given this study's findings of higher academic and athletic motivation among African-American Scholar-Baller football student-athletes, and its contrast to previous research, further studies should be performed to further explicate these differences among race/ethnicity. Qualitative research involving in-depth interviews and longitudinal studies investigating motivation and athletic identity over time should be performed.
Show less - Date Issued
- 2009
- Identifier
- CFE0002901, ucf:47991
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002901
- Title
- An Investigation of Science of Reading and Learning Representation in Undergraduate Elementary Education Reading Courses in the State University System of Florida.
- Creator
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Camara, Jessica, Taylor, Rosemarye, Ceballos, Marjorie, Doherty, Walter, Gordon, William, University of Central Florida
- Abstract / Description
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This study investigated the extent to which the science of reading instruction components and five science of learning principles were addressed in undergraduate elementary education required reading courses in the State University System (SUS) of Florida institutions. A document analysis of textbooks and syllabi was completed and evidence recorded in The Matrix for State University System (SUS) of Florida Scoring(&)copy;. The results were reported in summary tables and an analysis of the...
Show moreThis study investigated the extent to which the science of reading instruction components and five science of learning principles were addressed in undergraduate elementary education required reading courses in the State University System (SUS) of Florida institutions. A document analysis of textbooks and syllabi was completed and evidence recorded in The Matrix for State University System (SUS) of Florida Scoring(&)copy;. The results were reported in summary tables and an analysis of the data was conducted on the extent to which each science of reading component and science of learning principle were labeled explicitly, indirectly stated, or not present in syllabi and textbooks. Data showed that the science of reading instruction components were addressed in undergraduate elementary education reading courses and the five selected science of learning principles were not. These findings may inform elementary teacher preparation faculty in textbook selection and course syllabi development who are interested in assisting teacher candidates to adopt teaching practices consistent with how children learn.
Show less - Date Issued
- 2019
- Identifier
- CFE0007437, ucf:52716
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007437
- Title
- AN INVESTIGATION OF SELF-CARE MODALITIES FOR THE EFFECTIVE TREATMENT OF LYMPHEDEMA.
- Creator
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Major, Amber, Heglund, Stephen, University of Central Florida
- Abstract / Description
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The purpose of this literature review is to investigate the most effective forms of self-care that patients can perform to reduce swelling caused by lymphedema. Lymphedema may occur secondary to lymph node trauma, which makes it difficult for lymph fluid to leave an extremity. Even though lymphedema is more recognized as a side effect of breast cancer treatment, it can also be the result of many other ailments or treatments and can be present in any part of the body. By knowing which...
Show moreThe purpose of this literature review is to investigate the most effective forms of self-care that patients can perform to reduce swelling caused by lymphedema. Lymphedema may occur secondary to lymph node trauma, which makes it difficult for lymph fluid to leave an extremity. Even though lymphedema is more recognized as a side effect of breast cancer treatment, it can also be the result of many other ailments or treatments and can be present in any part of the body. By knowing which therapies are most effective, nurses and other health care professionals can educate patients to help ease the burden caused by this debilitating condition. This thesis discusses the results of clinical trials that studied different methods of self-care including exercises, bandaging, compression garments, sequential compression devices, and performing manual lymphatic drainage. The conclusion derived from the review of multiple studies is that participating in a combination of multiple therapies is the most effective means of lymphedema management and should be considered the ideal standard of care.
Show less - Date Issued
- 2011
- Identifier
- CFH0004065, ucf:44812
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0004065
- Title
- An Investigation of Sewage Treatment Automation Techniques.
- Creator
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Namey, Albert E., Hartman, J. Paul, Engineering
- Abstract / Description
-
Florida Technological University College of Engineering Thesis
- Date Issued
- 1975
- Identifier
- CFR0011999, ucf:53086
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0011999
- Title
- AN INVESTIGATION OF SIZE EXCLUSION AND DIFFUSION CONTROLLED MEMBRANE FOULING.
- Creator
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Hobbs, Colin, Taylor, James, University of Central Florida
- Abstract / Description
-
The reduction of membrane productivity (i.e. membrane fouling) during operation occurs in virtually all membrane applications. Membrane fouling originates from the method by which membranes operate: contaminants are rejected by the membrane and retained on the feed side of the membrane while treated water passes through the membrane. The accumulation of these contaminants on the feed side of the membrane results in increased operating pressures, increased backwashing frequencies, increased...
Show moreThe reduction of membrane productivity (i.e. membrane fouling) during operation occurs in virtually all membrane applications. Membrane fouling originates from the method by which membranes operate: contaminants are rejected by the membrane and retained on the feed side of the membrane while treated water passes through the membrane. The accumulation of these contaminants on the feed side of the membrane results in increased operating pressures, increased backwashing frequencies, increased chemical cleaning frequencies, and increased membrane replacement frequencies. The most significant practical implication of membrane fouling is increased operating and maintenance costs. As such, membrane fouling must be properly managed to ensure successful and efficient operation of membrane systems. This document presents four independent studies regarding the fouling of size exclusion and diffusion controlled membranes. A brief description of each study is presented below. The first study systematically investigated the fouling characteristics of various thin film composite polyamide reverse osmosis (RO) and nanofiltration (NF) membranes using a high organic surficial groundwater obtained from the City of Plantation, Florida. Prior to bench-scale fouling experiments, surface properties of the selected RO and NF membranes were carefully analysed in order to correlate the rate and extent of fouling to membrane surface characteristics, such as roughness, charge and hydrophobicity. More specifically, the surface roughness was characterized by atomic force microscopy, while the surface charge and hydrophobicity of the membranes were evaluated through zeta potential and contact angle measurements, respectively. The results indicated that membrane fouling became more severe with increasing surface roughness, as measured by the surface area difference, which accounts for both magnitude and frequency of surface peaks. Surface roughness was correlated to flux decline; however, surface charge was not. The limited range of hydrophobicity of the flat sheet studies prohibited conclusions regarding the correlation of flux decline and hydrophobicity. Mass loading and resistance models were developed in the second study to describe changes in solvent mass transfer (membrane productivity) over time of operation. Changes in the observed solvent mass transfer coefficient of four low pressure reverse osmosis membranes were correlated to feed water quality in a 2,000 hour pilot study. Independent variables utilized for model development included: temperature, initial solvent mass transfer coefficient, water loading, ultraviolet absorbance, turbidity, and monochloramine concentration. Models were generated by data collected throughout this study and were subsequently used to predict the solvent mass transfer coefficient. The sensitivity of each model with respect to monochloramine concentration was also analyzed. In the third study, mass loading and resistance models were generated to predict changes in solvent mass transfer (membrane productivity) with operating time for three reverse osmosis and nanofiltration membranes. Variations in the observed solvent mass transfer coefficient of these membranes treating filtered secondary effluent were correlated to the initial solvent mass transfer coefficient, temperature, and water loading in a 2,000 hour pilot study. Independent variables evaluated during model development included: temperature, initial solvent mass transfer coefficient, water loading, total dissolved solids, orthophosphorous, silica, total organic carbon, and turbidity. All models were generated by data collected throughout this study. Autopsies performed on membrane elements indicated membranes that received microfiltered water accumulated significantly more dissolved organic carbon and polysaccharides on their surface than membranes that received ultrafiltered water. Series of filtration experiments were systematically performed to investigate physical and chemical factors affecting the efficiency of backwashing during microfiltration of colloidal suspensions in the fourth study. Throughout this study, all experiments were conducted in dead-end filtration mode utilizing an outside-in, hollow-fiber module with a nominal pore size of 0.1 µm. Silica particles (mean diameter ~ 0.14 µm) were used as model colloids. Using a flux decline model based on the Happel's cell for the hydraulic resistance of the particle layer, the cake structure was determined from experimental fouling data and then correlated to backwash efficiency. Modeling of experimental data revealed no noticeable changes in cake layer structure when feed particle concentration and operating pressure increased. Specifically, the packing density of the cake layer (l-cake porosity) in the cake layer ranged from 0.66 to 0.67, which corresponds well to random packing density. However, the particle packing density increased drastically with ionic strength. The results of backwashing experiments demonstrated that the efficiency of backwashing decreased significantly with increasing solution ionic strength, while backwash efficiency did not vary when particle concentration and operating pressure increased. This finding suggests that backwash efficiency is closely related to the structure of the cake layer formed during particle filtration. More densely packed cake layers were formed under high ionic strength, and consequently less flux was recovered per given backwash volume during backwashing.
Show less - Date Issued
- 2007
- Identifier
- CFE0001854, ucf:47366
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001854
- Title
- An Investigation of State College to University Transfer Students' Sense of Belonging.
- Creator
-
Brady, Claire, Taylor, Rosemarye, Baldwin, Lee, Doherty, Walter, Cavanaugh, Pam, University of Central Florida
- Abstract / Description
-
The purpose of this mixed methods study was to examine the sense of belonging of state college transfer students who enroll at a large research-intensive university through structured and unstructured transfer pathways using the Sense of Belonging Instrument (SBI; Hoffman, Richmond, Morrow, (&) Solomon, 2002). The SBI includes five subscales (Peer Support, Faculty Support, Classroom Comfort, Isolation, and Empathetic Faculty Understanding). To date, no systematic investigation has considered...
Show moreThe purpose of this mixed methods study was to examine the sense of belonging of state college transfer students who enroll at a large research-intensive university through structured and unstructured transfer pathways using the Sense of Belonging Instrument (SBI; Hoffman, Richmond, Morrow, (&) Solomon, 2002). The SBI includes five subscales (Peer Support, Faculty Support, Classroom Comfort, Isolation, and Empathetic Faculty Understanding). To date, no systematic investigation has considered the construct of belonging with this population or transfer pathway. The findings from this study (n = 54) found a positive statistically significant correlation between Peer Support and Isolation (r(52) =.801, p = .000) and a statistically significant difference between the mean values of Empathetic Faculty Understanding between the structured and unstructured pathways (p = 0.027). This study showed that structured transfer pathway student sense of belonging was grounded in the classroom experience, empathetic faculty, and faculty support. Unstructured transfer pathway student sense of belonging was grounded in peer relationships, the classroom experience, and empathetic faculty. First generation participants were more likely to perceive isolation than non-first generation participants and structured pathway participants were more likely to perceive faculty empathetic understanding than unstructured pathway participants. There were also differences in the qualitative data between the pathway groups, including differing perceptions of faculty care and empathy, peer engagement, and the role of Advisors and online support systems in the transfer experience. The data and findings presented in this study show that the academic experience in the classroom and the perception of empathetic faculty are central to state college transfer student experience and contributes to transfer student sense of belonging.
Show less - Date Issued
- 2017
- Identifier
- CFE0006569, ucf:51332
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006569
- Title
- AN INVESTIGATION OF STUDENT SUCCESS BETWEEN ASSOCIATE OF ARTS AND NON ASSOCIATE OF ARTS TRANSFER STUDENTS.
- Creator
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D, LeeAnn, Tubbs, Levester, University of Central Florida
- Abstract / Description
-
This dissertation investigates the possible association between admission with an Associate of Arts (AA) degree or no-AA degree, gender, and ethnicity with graduation GPA, probation, and persistence of community college transfer students admitted to the University of Central Florida in the 2001-2002 academic year (N = 5283). The literature review found that the majority of studies related to transfer student success compared transfer students to native university students. Little evidence of...
Show moreThis dissertation investigates the possible association between admission with an Associate of Arts (AA) degree or no-AA degree, gender, and ethnicity with graduation GPA, probation, and persistence of community college transfer students admitted to the University of Central Florida in the 2001-2002 academic year (N = 5283). The literature review found that the majority of studies related to transfer student success compared transfer students to native university students. Little evidence of an association between success rates of transfer students as compared to native university students was indicated in the literature. The literature also did not indicate an association between gender and success rates or ethnic group and success rates. The results of this study suggest that admission degree, gender and ethnicity all had little to no impact on the success rates of the transfer students in the sample. The data for the students in the AA admission group indicated that receipt of an AA degree is related to student persistence. However, the test results indicated that this relationship was very weak. Due to the ever-increasing numbers of transfer students in this country, this study can be an informational tool for administrators at community colleges and universities in relation to transfer student success.
Show less - Date Issued
- 2005
- Identifier
- CFE0000458, ucf:46398
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0000458
- Title
- AN INVESTIGATION OF STUDENTSÂÂÂÂ' PROBLEM SOLVING SKILLS IN AN INTRODUCTORY PHYSICS CLASS.
- Creator
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McDonald, Frank, Jeanpierre, Bobby, University of Central Florida
- Abstract / Description
-
The purpose of this study was to document the specific errors that introductory physics students make in each phase of the solution of Force and Motion problems. A mixed methods design was used to identify those errors, and it was determined that the errors which students made the most frequently were the omission of mgcosθ , mgsinθ, and the lack of a clearly defined coordinate system as part of the free-body diagram. Additionally, there was a negative statistically significant...
Show moreThe purpose of this study was to document the specific errors that introductory physics students make in each phase of the solution of Force and Motion problems. A mixed methods design was used to identify those errors, and it was determined that the errors which students made the most frequently were the omission of mgcosθ , mgsinθ, and the lack of a clearly defined coordinate system as part of the free-body diagram. Additionally, there was a negative statistically significant relationship between the quality of the free-body diagram and the quality of equations that were produced to describe the objectÂÂÂÂ's motion. The results indicate that students do not have a full understanding of the role of a free-body diagram or its relationship to the system of equations that are generated as a result of the application of NewtonÂÂÂÂ's Second Law to the free-body diagram.
Show less - Date Issued
- 2010
- Identifier
- CFE0003456, ucf:48407
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003456
- Title
- An Investigation of the Academic Impact of the Freshman Transition Course at One Urban Central Florida High School.
- Creator
-
Flynn, Timothy, Taylor, Rosemarye, Baldwin, Lee, Doherty, Walter, Bradshaw, Leigh, University of Central Florida
- Abstract / Description
-
The purpose of this research was to identify the extent to which a high school freshman transition program aligned with research based recommendations and to determine the extent to which the intervention impacted persistence to the tenth grade, on-track-to-graduation status, and academic success. Documents relevant to the program were collected and analyzed for research based themes. Students in the program at the target school were compared to students in a similar high school and a...
Show moreThe purpose of this research was to identify the extent to which a high school freshman transition program aligned with research based recommendations and to determine the extent to which the intervention impacted persistence to the tenth grade, on-track-to-graduation status, and academic success. Documents relevant to the program were collected and analyzed for research based themes. Students in the program at the target school were compared to students in a similar high school and a historical cohort of students who attended the target school. The impact of the course was statistically significant for persistence to the tenth grade, on-track to graduation status, and academic success; however ANOVA found statistical significance favored Algebra 1 EOC and not FCAT Reading. Effect size statistics revealed little to no effect among Freshman Experience and the dependent variables. These findings will help school-level and district administrators design research-based transition interventions which encourage academic success and graduation.
Show less - Date Issued
- 2016
- Identifier
- CFE0006684, ucf:51902
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006684
- Title
- An Investigation of the Appropriateness of the English Language Learner Accountability Mark Established by the Every Student Succeeds Act of 2015.
- Creator
-
Rivera, Francisco, Johnson, Jerry, Nutta, Joyce, Doherty, Walter, Pace, Debra, University of Central Florida
- Abstract / Description
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This quantitative study sought to disclose and describe differences in academic performance between English language learners (ELLs) and non-English language learners (non-ELLs) in grades sixth, seventh, and eighth during the two-year period of 2016 (-) 2018. A two-year period was utilized because of the two-year ELL accountability mark established by the Every Student Succeeds Act (ESSA) of 2015. The study used i-Ready diagnostic data, in both mathematics and reading, as the performance...
Show moreThis quantitative study sought to disclose and describe differences in academic performance between English language learners (ELLs) and non-English language learners (non-ELLs) in grades sixth, seventh, and eighth during the two-year period of 2016 (-) 2018. A two-year period was utilized because of the two-year ELL accountability mark established by the Every Student Succeeds Act (ESSA) of 2015. The study used i-Ready diagnostic data, in both mathematics and reading, as the performance measures, and used ACCESS for ELLs (WIDA) tier scores (i.e., WIDA Tier A, WIDA Tier B, and WIDA Tier C) to identify the level of English language acquisition of the ELL students for use in making comparisons among ELL students with varying levels of English proficiency.The results indicated that WIDA Tier C (i.e., ELL students with the highest English language proficiency) students outperformed the ELL students in the other WIDA tiers (i.e., WIDA Tier A and WIDA Tier B), in both mathematics and reading. Moreover, while WIDA Tier A students had lower mean scale scores, they made the largest gains from administration to administration in both subjects. Additionally, the results obtained from a two-way ANOVA indicated that ELL students are making greater gains than non-ELL students over the two-year period, in mathematics and reading. The extant literature on second language acquisition asserts that it takes an ELL student longer than two years and up to seven years to acquire academic language proficiency (Collier, 1995; MacSwan (&) Pray, 2005; Hakuta, 2011; Kieffer (&) Park, 2016). The ANOVA results also indicated that high-SES ELL students showed a higher mean gain score, in both mathematics and reading, than low-SES ELL students. Non-ESE ELL students showed a larger mean gain score than ESE ELL students in both subjects as well. Furthermore, the results of the ancillary analysis (i.e., a hypothetical additional year) indicated that non-ELL students outperformed ELL students in both mathematics and reading suggesting that it is unlikely that one additional year would make a difference.The results of the study will aid the academic decision-making of the school district studied when determining the appropriate level of supports for ELL students in the different WIDA tiers or in the different stages of language acquisition. In addition, the results of the effects of socioeconomic status (SES) and of exceptional student education (ESE) in ELL students, should support the school district when planning interventions to help mitigate these factors. Lastly, the study provides further evidence that two years is not enough time for an ELL student to acquire academic language proficiency; and expecting this subgroup of the public-school population to do so, negatively affects the academic results of the students, schools, and school districts they attend.
Show less - Date Issued
- 2019
- Identifier
- CFE0007715, ucf:52413
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007715
- Title
- AN INVESTIGATION OF THE AUTOIGNITION OF POWER GENERATION GAS TURBINE FUEL BLENDS USING A DESIGN OF EXPERIMENTS APPROACH.
- Creator
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de Vries, Jaap, Petersen, Eric, University of Central Florida
- Abstract / Description
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Natural gas has grown in popularity as a fuel for power generation gas turbines. However, changes in fuel composition are a topic of concern since fuel variability can have a great impact on the reliability and performance of the burner design. In particular, autoignition of the premixed fuel and air prior to entering the main burner is a potential concern when using exotic fuel blends. To obtain much-needed data in this area, autoignition experiments for a wide range of likely fuel blends...
Show moreNatural gas has grown in popularity as a fuel for power generation gas turbines. However, changes in fuel composition are a topic of concern since fuel variability can have a great impact on the reliability and performance of the burner design. In particular, autoignition of the premixed fuel and air prior to entering the main burner is a potential concern when using exotic fuel blends. To obtain much-needed data in this area, autoignition experiments for a wide range of likely fuel blends containing CH4 mixed with combinations of C2H6, C3H8, C4H10, C5H12, and H2 were performed in a high-pressure shock tube. However, testing every possible fuel blend combination and interaction was not feasible within a reasonable time and cost. Therefore, to predict the surface response over the complete mixture domain, a special experimental design was developed to significantly reduce the amount of 'trials' needed from 243 to only 41 using the Box-Behnkin factorial design methodology. Kinetics modeling was used to obtain numerical results for this matrix of fuel blends, setting the conditions at a temperature of 800 K and pressure of 17 atm. A further and successful attempt was made to reduce the 41-test matrix to a 21-test matrix. This was done using special mixture experimental techniques. The kinetics model was used to compare the smaller matrix to the expected results of the larger one. The new 21-test matrix produced a numerical correlation that agreed well with the results from the 41-test matrix, indicating that the smaller matrix would provide the same statistical information as the larger one with acceptable precision. iii After the experimental matrix was developed using the design of experiments approach, the physical experiments were performed in the shock tube. Long test times were created by "tailoring" the shock tube using a novel driver gas mixture, obtaining test times of 10 millisecond or more, which made experiments at low temperatures possible. Large discrepancies were found between the predicted results by numerical models and the actual experimental results. The main conclusion from the experiments is that the methane-based mixtures in this study enter a regime with a negative temperature coefficient when plotted in Arhennius form. This means that these mixtures are far more likely to ignite under conditions frequently encountered in a premixer, potentially creating hazardous situations. The experimental results were correlated as a function of the different species. It was found that the effect of higher-order hydrocarbon addition to methane is not as profound as seen at higher temperatures (>1100 K). However, the ignition delay time could still be reduced by a factor two or more. It is therefore evident that potential autoignition could occur within the premixer, given the conditions as stated in this study.
Show less - Date Issued
- 2005
- Identifier
- CFE0000817, ucf:46684
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0000817
- Title
- An Investigation of the Biomechanical Implications of Lower Limb Fractures and Leg Length Disparity.
- Creator
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Mills, Elizabeth, Dupras, Tosha, Williams, Lana, Starbuck, John, University of Central Florida
- Abstract / Description
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One of the primary goals of biological anthropology is to develop an accurate understanding of human anatomy, health, disease, and injury in both modern and archaeological populations. Paleopathological analyses are a fruitful means of identifying disease and injury in skeletal assemblages, but the individual long-term biomechanical effects associated with pathological conditions have not yet been adequately explored in the literature. Leg fractures are a common pathological condition in both...
Show moreOne of the primary goals of biological anthropology is to develop an accurate understanding of human anatomy, health, disease, and injury in both modern and archaeological populations. Paleopathological analyses are a fruitful means of identifying disease and injury in skeletal assemblages, but the individual long-term biomechanical effects associated with pathological conditions have not yet been adequately explored in the literature. Leg fractures are a common pathological condition in both modern and archaeological populations, the effects of which may alter the biomechanics of gait. A growing body of clinical literature demonstrates that abnormal ambulatory function may have far-reaching effects in the rest of the body.To assess the long-term consequences of pathological conditions of the lower extremities, the relationship between lower limb long bone fracture occurrence, incidence of leg length disparity (LLD), and temporomandibular dysfunction (TMD) was analyzed. A total of 56 adult individuals (29 fractured, 27 unfractured) from the Hamann-Todd Osteological Collection (HTOC) at the Cleveland Museum of Natural History (curated between 1912 and 1938) were examined in this study. In total, the sample consisted of 37 males and 19 females (ages 25-76) of either black or white ancestry. LLD was assessed by taking standardized measurements of the lower limb long bones. TMD was analyzed by scoring the presence and severity of osteoarthritis of the temporomandibular joint (TMJ OA), dental attrition, and antemortem tooth loss. Kendall's Tau correlation statistics were used to assess morphological integration between all unique pairwise combinations of lower limb and jaw measurements among unfractured and fractured groups. Results indicate that several measures of LLD and jaw dysfunction are correlated differently in the unfractured and fractured groups. Comparisons of the All Unfractured and All Fractured groups most often showed higher absolute correlation values in unfractured individuals. Samples were also subdivided and compared based on known sex. Significant differences in patterns of morphological integration were observed between male and female sub-samples. Significant correlation values were almost always higher in the unfractured sample than in the fractured sample. Females, however, demonstrated both significant increases and significant decreases in absolute correlation values when comparing fractured and unfractured samples. Thus, patterns of significant differences in morphological integration between the lower limbs and jaw differ for males and females, with fairly consistent decreases in integration strength in the former and a mixed pattern of integration strength increases and decreases in the latter, when a leg fracture is involved. It is argued that these differences are explained by fundamental sexually dimorphic morphological and kinematic differences between males and females, such that fractures resulting in LLD affect the two sexes differently. Gendered lifetime social experiences and activity patterns may also explain the different male and female patterns identified in the analysis. These insights are applied to larger anthropological questions of social identity and the long-term injury experience.
Show less - Date Issued
- 2016
- Identifier
- CFE0006694, ucf:51917
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006694
- Title
- AN INVESTIGATION OF THE ECONOMIC VIABILITY AND ETHICAL RAMIFICATIONS OF VIDEO SURVEILLANCE IN THE ICU.
- Creator
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Bagge, Laura, Heglund, Stephen, University of Central Florida
- Abstract / Description
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The purpose of this review of literature is to investigate the various roles of video surveillance (VS) in the hospital's intensive care unit (ICU) as well as its legal and ethical implications. Today, hospitals spend more money on the ICU than on any other unit. By 2030, the population of those 65 and over is expected to double. 80% of older adults have at least one chronic diseases (Centers for Disease Control and Prevention, 2013). As a consequence, the demand for ICU services will likely...
Show moreThe purpose of this review of literature is to investigate the various roles of video surveillance (VS) in the hospital's intensive care unit (ICU) as well as its legal and ethical implications. Today, hospitals spend more money on the ICU than on any other unit. By 2030, the population of those 65 and over is expected to double. 80% of older adults have at least one chronic diseases (Centers for Disease Control and Prevention, 2013). As a consequence, the demand for ICU services will likely increase, which may burden hospital with additional costs.. Because of increasing economic pressures, more hospitals are using video surveillance to enhance quality care and reduce ICU costs (Goran, 2012). Research shows that VS enhances positive outcomes among patients and best practice compliance among hospital staff. The results are fewer reports of patient complications and days spent in the ICU, and an increase in reported hospital savings. In addition, VS is becoming an important tool for the families of newborns in the neonatal ICU (NICU). The belief is that the VS can facilitate parent-baby bonding. In the United States of America, privacy rights impose legal restrictions on VS. These rights come from the U.S. Constitution, Statutory law, Regulatory law, and State law. HIPPA authorizes the patient to control the use and disclosure of his or her health information. Accordingly, hospitals are under obligation to inform patients on their right to protected health information. It is appropriate that hospitals use VS for diagnostic purposes as long as they have obtained patient consent. According to modern day privacy experts Charles Fried and Alan Westin, a violation of a person's privacy equates a violation on their liberty and morality. However, if a physician suspects that a third party person is causing harm to the patient, than the use of covert VS is justifiable.
Show less - Date Issued
- 2013
- Identifier
- CFH0004475, ucf:45138
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0004475
- Title
- AN INVESTIGATION OF THE EFFECTIVENESS OF COMPUTER-ASSISTED BIOFEEDBACK FOR STUDENTS DIAGNOSED AS HAVING AUTISM SPECTRUM DISORDER: THE RELATIONSHIP BETWEEN THE USE OF COMPUTER-ASSISTED BIOFEEDBACK AND ON-TASK BEHAVIOR.
- Creator
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Aguinaga, Nancy, Cross, Lee, University of Central Florida
- Abstract / Description
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Using a single-subject multiple baseline design across participants, this study examined the impact of computer-assisted biofeedback to promote engagement of students diagnosed as having autism spectrum disorder. The study was conducted in a public school classroom setting. Specifically the on-task behavior during an individualized academic activity was investigated. Three 9-10 year old children participated in the study. In the baseline phase, data was collected on speed to engagement and...
Show moreUsing a single-subject multiple baseline design across participants, this study examined the impact of computer-assisted biofeedback to promote engagement of students diagnosed as having autism spectrum disorder. The study was conducted in a public school classroom setting. Specifically the on-task behavior during an individualized academic activity was investigated. Three 9-10 year old children participated in the study. In the baseline phase, data was collected on speed to engagement and percentage of time on-task during an academic activity. A 15-second momentary time sampling procedure was used for a 5 minute session each day of the week for a five week period to measure the participant's engagement. In the intervention phase, the participants completed a three to four minute computer-assisted biofeedback session prior to the academic activity and collection of data on engagement. In addition, data were collected on performance level of the academic activity. Data were also collected on educator and parent perception of generalization of self-regulation of behavior. The data suggest: (a) speed to engagement increased when using a computer-assisted biofeedback program for all participants; (b) time on-task improved over baseline conditions for all participants; (c) academic achievement was impacted by computer-assisted biofeedback for one participant; and (d) educators perceived a generalization of self-regulation of behavior, while parents did not indicate any generalization of self-regulation of behavior occurred in the home environment.
Show less - Date Issued
- 2006
- Identifier
- CFE0001260, ucf:46888
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001260
- Title
- An Investigation of the Effects of Neurofeedback Training on Attention Deficit-Hyperactivity Disorder (ADHD) Symptoms, Depression, Anxiety, and Academic Self-Efficacy in College Students.
- Creator
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Harris, Shaywanna, Lambie, Glenn, Hundley, Gulnora, Kelchner, Viki, Bai, Haiyan, University of Central Florida
- Abstract / Description
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College students diagnosed with Attention Deficit-Hyperactivity Disorder (ADHD) are at an increased risk of depression, anxiety, and lower academic self-efficacy as compared to college students not diagnosed with ADHD. Additionally, college students with ADHD diagnoses struggle to obtain effective treatment options for their ADHD symptoms. Specifically, pharmacological interventions are effective in mitigating ADHD symptoms; however, adverse effects of stimulant medications (i.e., increased...
Show moreCollege students diagnosed with Attention Deficit-Hyperactivity Disorder (ADHD) are at an increased risk of depression, anxiety, and lower academic self-efficacy as compared to college students not diagnosed with ADHD. Additionally, college students with ADHD diagnoses struggle to obtain effective treatment options for their ADHD symptoms. Specifically, pharmacological interventions are effective in mitigating ADHD symptoms; however, adverse effects of stimulant medications (i.e., increased/decreased appetite, headache) impact medication adherence in college students with ADHD. Neurofeedback is a non-invasive, drug-free intervention that uses the theories of biofeedback and cybernetics to increase self-regulation of brain functions. The purpose of this dissertation study was to examine differences in college student participants' scores on inattention, hyperactivity, impulsivity, self-concept, depression, anxiety, and self-efficacy measures over time when exposed to the neurofeedback intervention. The researcher employed a quasi-experimental, one group, time series design to explore differences in levels of symptomology in 11 participants over four assessment points. The results identified participants' scores in inattention (p = .016), hyperactivity (p = .017), self-concept (p = .008), depression (p = .004), and anxiety (p = .018) significantly decreased of the course of the intervention (16 neurofeedback sessions). Moreover, the participants' self-reported levels of academic self-efficacy increased significantly over time (p (<) .001). The findings for the current study provide practical, professional, and public policy implications, expanding the neurofeedback training and ADHD literature.
Show less - Date Issued
- 2017
- Identifier
- CFE0006600, ucf:51271
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006600
- Title
- AN INVESTIGATION OF THE EFFECTS OF SPEAKERS' VOCAL CHARACTERISTICS ON RATINGS OF CONFIDENCE AND PERSUASION.
- Creator
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Montrey, John, Pryor, Albert, University of Central Florida
- Abstract / Description
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This experiment furthered previous research on perceptions of speakers as a function of various vocal characteristics. A low relevance passage was recorded by male and female speakers, simulating voices of orotund, thin, thoaty, flat, breathy, as well as rate and pitch variations, so as to determine effects on persuasiveness and confidence. Main effects were found regarding gender across all vocal characteristics. While an orotund voice produced predominately positive effects of ratings of...
Show moreThis experiment furthered previous research on perceptions of speakers as a function of various vocal characteristics. A low relevance passage was recorded by male and female speakers, simulating voices of orotund, thin, thoaty, flat, breathy, as well as rate and pitch variations, so as to determine effects on persuasiveness and confidence. Main effects were found regarding gender across all vocal characteristics. While an orotund voice produced predominately positive effects of ratings of speakers' confidence and persuasiveness, a breathy effect elicited negative ratings. The male speaker was judged more harshly than the female speaker when the vocal characterization departed from the norm.
Show less - Date Issued
- 2005
- Identifier
- CFE0000902, ucf:46750
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0000902
- Title
- AN INVESTIGATION OF THE EFFECTS OF USING DIGITAL FLASH CARDS TO INCREASE BIOLOGY VOCABULARY KNOWLEDGE IN HIGH SCHOOL STUDENTS WITH LEARNING DISABILITIES.
- Creator
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Grillo, Kelly, Dieker, Lisa, University of Central Florida
- Abstract / Description
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The field of science education, specifically biology, is becoming more challenging due to richer and more rigorous content demands. Along with new demands is the emergence of National Common Core Standards and End of Course Exams. Despite these changes, one factor remains consistent: As content knowledge increases, language demands also increase. For students with learning disabilities (LD), specifically those with language-based disabilities, the increasing vocabulary demand can lead to...
Show moreThe field of science education, specifically biology, is becoming more challenging due to richer and more rigorous content demands. Along with new demands is the emergence of National Common Core Standards and End of Course Exams. Despite these changes, one factor remains consistent: As content knowledge increases, language demands also increase. For students with learning disabilities (LD), specifically those with language-based disabilities, the increasing vocabulary demand can lead to failure due not to a lack of understanding biology but the vocabulary associated with the content. In an attempt to impact high school students with learning disabilities'success in biology, a vocabulary intervention was investigated. Research suggests as more and more content is compressed into science courses, teachers are looking toward technology to assist with vocabulary mastery. The current research study examined the effects of a digital flash card intervention, Study Stack, versus a paper flash card intervention in biology for students with LD by measuring students'word knowledge and overall biology course achievement. Findings from repeated measures ANOVA showed a statistically significant increase on both the vocabulary assessment as well as the course grades in biology over time. However, the test of between effects considering card type yielded no differential change on vocabulary assessment and course grades in biology. Based on qualitative data, students interviewed liked the tool and found it to be helpful in learning biology terminology.
Show less - Date Issued
- 2011
- Identifier
- CFE0003972, ucf:48662
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003972
