Current Search: Science Education (x)
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- Title
- A Military Training System Perspective and Model for Training Program Management.
- Creator
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Boudreaux, Alvin J., Clapp, Donald E., Engineering
- Abstract / Description
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Florida Technological University College of Engineering Thesis; A perspective of the Naval Education and Training System (NETS) is developed and utilized as a framework on which a simulation model of general training system activities is constructed. The simulation model, which is based on functional activities, emphasizes the interdependent consequences of decisions and actions created through management planning, analysis, and control of training programs. A simulation experiment was...
Show moreFlorida Technological University College of Engineering Thesis; A perspective of the Naval Education and Training System (NETS) is developed and utilized as a framework on which a simulation model of general training system activities is constructed. The simulation model, which is based on functional activities, emphasizes the interdependent consequences of decisions and actions created through management planning, analysis, and control of training programs. A simulation experiment was conducted using a test situation description (scenario) to reflect the impact of management decisions and actions on the resulting allocation of resources and timeliness of training program activities. Conclusions are drawn regarding the utility and implications of the system dynamics model as a management tool with which to improve training. Recommendations are made regarding future experimentation and analysis which is required for sufficient development of a useful management tool.
Show less - Date Issued
- 1974
- Identifier
- CFR0003500, ucf:53016
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0003500
- Title
- Novice Science Teachers' Thinking About the Purpose of Teachers' Questions.
- Creator
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Crittenden, Gwyndolyn, Jeanpierre, Bobby, University of Central Florida
- Abstract / Description
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Effective teacher questioning during whole group instruction remains an important pedagogy in science education, especially the importance of helping novice teachers to guide student thinking using effective questions. This study examined how novice secondary science teachers' understand the relationship between student thinking and teacher questioning. The sample was seven novice secondary science teachers' enrolled in the University of Central Florida's job embedded Resident Teacher...
Show moreEffective teacher questioning during whole group instruction remains an important pedagogy in science education, especially the importance of helping novice teachers to guide student thinking using effective questions. This study examined how novice secondary science teachers' understand the relationship between student thinking and teacher questioning. The sample was seven novice secondary science teachers' enrolled in the University of Central Florida's job embedded Resident Teacher Professional Preparation Program (RTP3). All participants received instruction and guided practice with the use of questions to elicit, probe, and challenge student ideas in the secondary science pedagogy class. Participants completed a questionnaire describing their teaching experience and science content knowledge. The primary data were think aloud interviews describing their thinking while observing two science instruction videos. Protocols, critical incident interviews, and field notes were transcribed and coded for analysis. Descriptive codes identified properly classified question types and the purpose or value of questions, student thinking, and student reaction to teacher questions. Pattern codes identified student engagement, feedback, wait time, and communication patterns. The think aloud used in this study provided insight into what the participants were thinking about the purposes of questions to elicit, probe, and challenge student ideas and gave insight into the decision process. Evidence from the protocol analysis provided insight about what the participants were thinking about the decisions made when attending to teacher questions and student thinking. All seven participants identified question types using language suggesting they understood the differences, but at a na(&)#239;ve level. Although participants used the correct language to show understanding of the question types, they had a fairly na(&)#239;ve understanding of the pedagogical purpose of the questions. This was especially true of the questions to elicit student ideas, but perhaps less true of the probing and challenging questions. The participants had more of a ritualistic understanding of the questions to elicit student ideas; they noticed them but perhaps did not have a deep understanding of this question type. Analyses of this study also revealed novice teachers learning is framed by the priorities of the public school system. All participants attended to teacher instruction, especially wait time and student engagement, while a few participants focused on feedback, praise, and higher- and lower-order questions. This study suggested school culture and the way teachers are now assessed may scaffold and support these teachers to have a more nuanced and sophisticated understanding of questioning and student thinking than has previously been reported for novice/beginning teachers. While some aspects of school culture and assessment may be problematic- i.e. wait time, feedback, praise, higher-order questions, etc.-on the whole it seems to be leading them in the right direction.
Show less - Date Issued
- 2014
- Identifier
- CFE0005153, ucf:50690
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005153
- Title
- Placing birds on a dynamic evolutionary map: Using digital tools to update the evolutionary metaphor of the "tree of life".
- Creator
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Stephens, Sonia, Dombrowski, Paul, Applen, John, Murphy, Patrick, Lindgren, Robb, University of Central Florida
- Abstract / Description
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This dissertation describes and presents a new type of interactive visualization for communicating about evolutionary biology, the dynamic evolutionary map. This web-based tool utilizes a novel map-based metaphor to visualize evolution, rather than the traditional (")tree of life.(") The dissertation begins with an analysis of the conceptual affordances of the traditional tree of life as the dominant metaphor for evolution. Next, theories from digital media, visualization, and cognitive...
Show moreThis dissertation describes and presents a new type of interactive visualization for communicating about evolutionary biology, the dynamic evolutionary map. This web-based tool utilizes a novel map-based metaphor to visualize evolution, rather than the traditional (")tree of life.(") The dissertation begins with an analysis of the conceptual affordances of the traditional tree of life as the dominant metaphor for evolution. Next, theories from digital media, visualization, and cognitive science research are synthesized to support the assertion that digital media tools can extend the types of visual metaphors we use in science communication in order to overcome conceptual limitations of traditional metaphors. These theories are then applied to a specific problem of science communication, resulting in the dynamic evolutionary map.Metaphor is a crucial part of scientific communication, and metaphor-based scientific visualizations, models, and analogies play a profound role in shaping our ideas about the world around us. Users of the dynamic evolutionary map interact with evolution in two ways: by observing the diversification of bird orders over time and by examining the evidence for avian evolution at several places in evolutionary history. By combining these two types of interaction with a non-traditional map metaphor, evolution is framed in a novel way that supplements traditional metaphors for communicating about evolution. This reframing in turn suggests new conceptual affordances to users who are learning about evolution. Empirical testing of the dynamic evolutionary map by biology novices suggests that this approach is successful in communicating evolution differently than in existing tree-based visualization methods. Results of evaluation of the map by biology experts suggest possibilities for future enhancement and testing of this visualization that would help refine these successes. This dissertation represents an important step forward in the synthesis of scientific, design, and metaphor theory, as applied to a specific problem of science communication. The dynamic evolutionary map demonstrates that these theories can be used to guide the construction of a visualization for communicating a scientific concept in a way that is both novel and grounded in theory. There are several potential applications in the fields of informal science education, formal education, and evolutionary biology for the visualization created in this dissertation. Moreover, the approach suggested in this dissertation can potentially be extended into other areas of science and science communication. By placing birds onto the dynamic evolutionary map, this dissertation points to a way forward for visualizing science communication in the future.
Show less - Date Issued
- 2012
- Identifier
- CFE0004639, ucf:49898
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004639
- Title
- A Study of Central Florida College Students' Acceptance of the Theory of Evolution, Microevolution, Macroevolution, and Human Evolution.
- Creator
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Schleith, David, Murray, Kenneth, Baldwin, Lee, Doherty, Walter, Everett, Robert, University of Central Florida
- Abstract / Description
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In order to study the teaching and learning of the theory of evolution and determine levels of acceptance of the theory of evolution among college students studying biology in Central Florida, the Inventory of Student Evolution Acceptance, I-SEA, was administered to over 500 university students enrolled in a biology course during the Fall 2016 term. An analysis of 489 completed surveys demonstrated strong overall acceptance of the theory of evolution (average score = 103 out of 120 total...
Show moreIn order to study the teaching and learning of the theory of evolution and determine levels of acceptance of the theory of evolution among college students studying biology in Central Florida, the Inventory of Student Evolution Acceptance, I-SEA, was administered to over 500 university students enrolled in a biology course during the Fall 2016 term. An analysis of 489 completed surveys demonstrated strong overall acceptance of the theory of evolution (average score = 103 out of 120 total possible). Of all students, 78% fell into the category of very high acceptance of the theory of evolution. Students who reported attending worship services weekly or more scored statistically significantly lower on the I-SEA than students who reported attending worship services less than weekly. The level of previous high school coursework in biology(-)whether honors, or advanced biology courses were taken-- did not translate into statistically significant differences in acceptance of evolution as measured by the I-SEA. Three subscales contained within the Inventory of Student Evolution Acceptance are designed to measure student acceptance of microevolution, macroevolution, and human evolution. Students demonstrate higher levels of acceptance of microevolution than macroevolution or human evolution. These findings serve to inform educational leaders and science educators regarding students' worldview and how worldview may inform what students accept as true and valid. The I-SEA serves as a useful educational tool to inform instructional decisions in the biology classroom.
Show less - Date Issued
- 2017
- Identifier
- CFE0006792, ucf:51818
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006792
- Title
- UCF UPWARD BOUND PROGRAM: PROMOTING FIRST GENERATION IN COLLEGE, LOW INCOME AND MULTICULTURAL STUDENTS STEM COLLEGE SUCCESS.
- Creator
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Restrepo, Christina, McCloud, Rebekah, University of Central Florida
- Abstract / Description
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The objective of this research is to explore the perceptions of UCF Upward Bound Program participants using focus groups and pre-posttest surveys in order to assess students level of understanding of Science, Technology, Engineering, and Mathematics (STEM) related coursework, secondary education preparation in science and mathematics, and their perceptions of barriers to a STEM college education. Also, this study centers on the summer 2010 science and mathematics residential portion of the...
Show moreThe objective of this research is to explore the perceptions of UCF Upward Bound Program participants using focus groups and pre-posttest surveys in order to assess students level of understanding of Science, Technology, Engineering, and Mathematics (STEM) related coursework, secondary education preparation in science and mathematics, and their perceptions of barriers to a STEM college education. Also, this study centers on the summer 2010 science and mathematics residential portion of the Upward Bound Program. Program outcomes and effectiveness were evaluated based on the change in student insight of the Upward Bound Programs stake in their secondary education. In addition, pre-posttest measures and interviews allowed a greater understanding of teacher and parent involvement in high school coursework success. Factors that involve self-efficacy, same or other group orientation and perceptions of student college environment were also analyzed. This research facilitated the understanding of first generation, low income and multicultural students perceptions and what they view as a benefit or a hindrance to entering and successfully completing degrees in post-secondary institutions, specifically in STEM-related disciplines.
Show less - Date Issued
- 2011
- Identifier
- CFH0003808, ucf:44766
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0003808
- Title
- IMPACT OF SCALE-UP ON SCIENCE TEACHING SELF-EFFICACY OF STUDENTS IN GENERAL EDUCATION SCIENCE COURSES.
- Creator
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Cassani, Mary Kay, Jeanpierre, Bobby, University of Central Florida
- Abstract / Description
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The objective of this study was to evaluate the effect of two pedagogical models used in general education science on non-majors' science teaching self-efficacy. Science teaching self-efficacy can be influenced by inquiry and cooperative learning, through cognitive mechanisms described by Bandura (1997). The Student Centered Activities for Large Enrollment Undergraduate Programs (SCALE-UP) model of inquiry and cooperative learning incorporates cooperative learning and inquiry-guided...
Show moreThe objective of this study was to evaluate the effect of two pedagogical models used in general education science on non-majors' science teaching self-efficacy. Science teaching self-efficacy can be influenced by inquiry and cooperative learning, through cognitive mechanisms described by Bandura (1997). The Student Centered Activities for Large Enrollment Undergraduate Programs (SCALE-UP) model of inquiry and cooperative learning incorporates cooperative learning and inquiry-guided learning in large enrollment combined lecture-laboratory classes (Oliver-Hoyo & Beichner, 2004). SCALE-UP was adopted by a small but rapidly growing public university in the southeastern United States in three undergraduate, general education science courses for non-science majors in the Fall 2006 and Spring 2007 semesters. Students in these courses were compared with students in three other general education science courses for non-science majors taught with the standard teaching model at the host university. The standard model combines lecture and laboratory in the same course, with smaller enrollments and utilizes cooperative learning. Science teaching self-efficacy was measured using the Science Teaching Efficacy Belief Instrument B (STEBI-B; Bleicher, 2004). A science teaching self-efficacy score was computed from the Personal Science Teaching Efficacy (PTSE) factor of the instrument. Using non-parametric statistics, no significant difference was found between teaching models, between genders, within models, among instructors, or among courses. The number of previous science courses was significantly correlated with PTSE score. Student responses to open-ended questions indicated that students felt the larger enrollment in the SCALE-UP room reduced individual teacher attention but that the large round SCALE-UP tables promoted group interaction. Students responded positively to cooperative and hands-on activities, and would encourage inclusion of more such activities in all of the courses. The large enrollment SCALE-UP model as implemented at the host university did not increase science teaching self-efficacy of non-science majors, as hypothesized. This was likely due to limited modification of standard cooperative activities according to the inquiry-guided SCALE-UP model. It was also found that larger SCALE-UP enrollments did not decrease science teaching self-efficacy when standard cooperative activities were used in the larger class.
Show less - Date Issued
- 2008
- Identifier
- CFE0002125, ucf:47560
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002125
- Title
- Using argument as a bridge between literacy and science: An intervention study in a science methods course for elementary preservice teachers.
- Creator
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Grysko, Rebeca, Zygouris-Coe, Vassiliki, Gao, Su, Roberts, Sherron, Fang, Zhihui, Bai, Haiyan, University of Central Florida
- Abstract / Description
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The purpose of this study was to investigate the impact of an intervention on teaching science as argument within a science methods course on elementary preservice teachers' (PSTs') (a) understandings of the nature of science (NOS), (b) knowledge about argumentation, (c) complexity of their written explanations, and (d) ability to incorporate components of the framework for teaching science as argument to support students' literacy and science learning. This mixed-methods study utilized an...
Show moreThe purpose of this study was to investigate the impact of an intervention on teaching science as argument within a science methods course on elementary preservice teachers' (PSTs') (a) understandings of the nature of science (NOS), (b) knowledge about argumentation, (c) complexity of their written explanations, and (d) ability to incorporate components of the framework for teaching science as argument to support students' literacy and science learning. This mixed-methods study utilized an embedded quasi-experimental design with a treatment (n = 20) and control group (n = 25). The treatment group instructor, who completed an eight-week professional development course, implemented the intervention protocol across a 12-week period. Throughout the intervention, emphasis was placed on three key components of teaching science as argument (i.e., argument structure, public reasoning, and the language of science). The control group instructor, who did not partake in any professional learning activities, implemented business-as-usual instruction. Results from a repeated measures MANOVA revealed that, although the intervention did not have a significant impact on PSTs' knowledge of argumentation, PSTs who received the intervention did demonstrate a significant increase in their understanding of the NOS and in the complexity of their written explanations, as compared to PSTs who did not receive the intervention. Furthermore, analysis of PSTs' written lesson plans revealed several themes (i.e., opportunities for students to collect and analyze data, use of scaffolds for helping students construct scientific explanations, emphasis on the use of text to support scientific inquiry, and attention to developing students' science vocabulary) consistent with the framework for teaching science as argument. These findings contribute to a growing body of evidence illustrating the effectiveness of intentionally designed teacher preparation experiences for developing PSTs' knowledge, beliefs, and practices for supporting students' engagement in scientific explanation and argument.
Show less - Date Issued
- 2019
- Identifier
- CFE0007643, ucf:52477
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007643
- Title
- NO CHILD LEFT BEHIND?: THE RELATIONSHIP BETWEEN EDUCATION POLICY AND STUDENT SUCCESS.
- Creator
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Resmann, Brittany, Kiel , Dwight, University of Central Florida
- Abstract / Description
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This study investigated how education policy influences student success, and if there are linkages between K-12 education policy and higher education. Historically, education has primarily been a function of state and local governments. The role of the federal government drastically changed with the passage of the No Child Left Behind Act in 2001. This thesis focused on the influence of No Child Behind on several indicators of student success in K-12 and postsecondary education. All fifty...
Show moreThis study investigated how education policy influences student success, and if there are linkages between K-12 education policy and higher education. Historically, education has primarily been a function of state and local governments. The role of the federal government drastically changed with the passage of the No Child Left Behind Act in 2001. This thesis focused on the influence of No Child Behind on several indicators of student success in K-12 and postsecondary education. All fifty states were examined in this study. This approach is rather unusual since it is typical to focus on one state or a small group of states. In addition to the state level analyses, macro analyses were also conducted to generate sounder policy prescriptions. This study tested three primary research questions. The first research question tested possible changes in several measures of student success since the implementation of No Child Left Behind. The second research question analyzed the relationship between K-12 education policy and higher education. The third research question addressed the possibility that state education reforms have had an impact on test scores, graduation rates, and college enrollment. Findings showed that K-12 test scores have improved on the national level since the implementation of No Child Left Behind, but there are several states that have witnessed a decline in test scores since legislation was enacted. There was no relationship between the state reforms and the variables that measured student success. Based on the findings, policy prescriptions were generated for both leaders within education and policymakers.
Show less - Date Issued
- 2009
- Identifier
- CFE0002607, ucf:48249
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002607
- Title
- A DESCRIPTIVE FRAMEWORK FOR THE PROBLEM-SOLVING EXPERIENCES OF PHYSICS STUDENTS.
- Creator
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Savrda, Sherry, Boote, David, University of Central Florida
- Abstract / Description
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This study investigated the applicability of a general model of physics students' problem-solving experiences that suggests there are four dynamic factors affecting the problem-solving process: categorization, goal interpretation, resource relevance, and complexity. Furthermore, it suggests an overarching control factor called stabilization, which describes the inter-relatedness of the other factors over the problem-solving process. Think-aloud protocols of problem-solving experiences...
Show moreThis study investigated the applicability of a general model of physics students' problem-solving experiences that suggests there are four dynamic factors affecting the problem-solving process: categorization, goal interpretation, resource relevance, and complexity. Furthermore, it suggests an overarching control factor called stabilization, which describes the inter-relatedness of the other factors over the problem-solving process. Think-aloud protocols of problem-solving experiences were used to investigate the model. Results of the study showed that conceptual resources had a significant impact on the success of problem-solving attempts. Participants who exhibited a lack of understanding of physics concepts were less likely to check their work, use diagrams effectively, set subgoals, or to use geometric or trigonometric resources, and were more likely to use a formula-driven search for a solution than those who exhibited evidence of conceptual understanding. However, conceptual understanding did guarantee problem-solving success. Mathematical and procedural knowledge was also seen as important. While many of the specific observations were consistent with the existing literature, the model provides an alternative framework with which to understand and synthesize those observations. The model was shown to be partially successful in describing participants' problem-solving experiences. Categorization, resource relevance and goal interpretation were supported to varying degrees; however, there was less evidence to support the construct of complexity. Determination of evidence for stabilization was guided by a working definition based on the participants' search for a stable understanding of the problem. Implications of these results for research and practice were noted.
Show less - Date Issued
- 2007
- Identifier
- CFE0001619, ucf:47170
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001619
- Title
- SCIENCE SELF-EFFICACY IN TENTH GRADE HISPANIC FEMALE HIGH SCHOOL STUDENTS.
- Creator
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Miller, Maria, Biraimah, Karen, University of Central Florida
- Abstract / Description
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Historical data have demonstrated an underrepresentation of females and minorities in science, technology, engineering, and mathematics (STEM) professions. The purpose of the study considered the variables of gender and ethnicity collectively in relationship to tenth grade Hispanic females' perception of their self-efficacy in science. The correlation of science self-efficacy to science academic achievement was also studied. Possible interventions for use with female Hispanic minority...
Show moreHistorical data have demonstrated an underrepresentation of females and minorities in science, technology, engineering, and mathematics (STEM) professions. The purpose of the study considered the variables of gender and ethnicity collectively in relationship to tenth grade Hispanic females' perception of their self-efficacy in science. The correlation of science self-efficacy to science academic achievement was also studied. Possible interventions for use with female Hispanic minority populations might help increase participation in STEM field preparation during the high school career. A population of 272 students was chosen through convenience sampling methods, including 80 Hispanic females. Students were administered a 27-item questionnaire taken directly from the Smist (1993) Science Self-efficacy Questionnaire (SSEQ). Three science self-efficacy factors were successfully extracted and included Academic Engagement Self-efficacy (M=42.57), Laboratory Self-efficacy (M=25.44), and Biology Self-efficacy (M=19.35). Each factor showed a significant positive correlation (p<.01) to each of the other two factors. ANOVA procedures compared all female subgroups in their science self-efficacy perceptions. Asian/Pacific and Native American females had higher self-efficacy mean scores as compared to White, Black and Hispanic females on all three extracted science self-efficacy factors. Asian/Pacific females had the highest mean scores. No statistically significant correlations were found between science-self-efficacy and a measure of science achievement. Two high-ability and two low-ability Hispanic females were randomly chosen to participate in a brief structured interview. Three general themes emerged. Classroom Variables, Outside School Variables, and Personal Variables were subsequently divided into sub themes influenced by participants' views of science, It was concluded that Hispanic female science self-efficacy was among the subgroups which self-scored the lowest. Asian/Pacific and Native American females fared better than White, Black, and Hispanic female counterparts respectively. Triangulation of interview and quantitative data showed that classroom factors, specifically academic engagement, influenced participant perceptions of science self efficacy the greatest. Suggested further studies on the impact of science self-efficacy and science achievement are discussed. Information gleaned from the continued study of science self-efficacy may influence the ability of traditionally underrepresented racial/ethnic females to persist in their science preparation and training in an effort to prevent leaving the STEM pipeline at this crucial juncture.
Show less - Date Issued
- 2006
- Identifier
- CFE0000933, ucf:46743
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0000933
- Title
- A COMPARATIVE INVESTIGATION OF CAREER READINESS AND DECIDEDNESS IN FIRST YEAR STEM MAJORING STUDENTS PARTICIPATING IN A STEM MENTORING PROGRAM IMBEDDED IN A LIVING-LEARNING COMMUNITY WITH FOCUSED DATA ON FEMALE STEM STUDENTS.
- Creator
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Ramlakhan, Nirmala, Jeanpierre, Bobby, Boote, David, Hynes, Michael, Daire, Andrew, University of Central Florida
- Abstract / Description
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Female mentoring success was investigated as an undergraduate intervention utilizing career development practices to reduce dysfunctional career thinking and STEM major retention in first year freshmen females within a living-learning community. Repeated measures MANOVAs and canonical correlations in the causal comparative research design evaluated mentoring's influence on first year females. Male voluntary participants (n = 126) formulated the comparison group, and female voluntary...
Show moreFemale mentoring success was investigated as an undergraduate intervention utilizing career development practices to reduce dysfunctional career thinking and STEM major retention in first year freshmen females within a living-learning community. Repeated measures MANOVAs and canonical correlations in the causal comparative research design evaluated mentoring's influence on first year females. Male voluntary participants (n = 126) formulated the comparison group, and female voluntary participants (n = 75) filled the treatment group. Repeated measure multivariate analyses of variances compared differences between the interaction of mentoring and gender over time on dysfunctional career thinking using two assessments: Career Thoughts Inventory (CTI) and Career Decision Scale (CDS) and their five subscales (decision-making confusion, commitment anxiety, external conflict, certainty and indecision). Canonical correlations analyzed the effect participation rates had on student change scores on the CTI and CDS, indicating mentoring intervention effects on reducing dysfunctional career thinking and decidedness. Conclusions included: (a) females had higher levels of dysfunctional career thinking than males; (b) overtime both groups decreased dysfunctional thoughts,and solidifying their STEM career choices; (c) females had reduced levels of career decidedness compared to males; (d) both groups increased certainty overtime, solidifying their STEM career choice, and (e) when the STEM career choice was made, female certainty was more solidified than males. The study adds to the career development research within STEM at the undergraduate level providing colleges and universities with a structured first year female mentoring program in STEM. The GEMS model may be ideal for colleges and universities utilizing living-learning communities to increase underrepresented female retention and those without STEM career planning courses.?
Show less - Date Issued
- 2012
- Identifier
- CFE0004586, ucf:49191
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004586
- Title
- Light Matter Interaction in Single Molecule Magnets.
- Creator
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Cebulka, Rebecca, Del Barco, Enrique, Klemm, Richard, Mucciolo, Eduardo, Luis, Fernando, University of Central Florida
- Abstract / Description
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This dissertation includes a series of experimental realizations which focus on studying the coupling between photons and single-molecule magnets (SMMs) in both the weak and strong coupling regimes. In the weak coupling regime, the aim is to achieve coherent control over the time evolution of the spin of SMMs while applying rapid microwave pulses at sub-Kelvin temperatures, where polarization of the spin bath may be achieved without large magnetic fields, allowing the suppression of dipolar...
Show moreThis dissertation includes a series of experimental realizations which focus on studying the coupling between photons and single-molecule magnets (SMMs) in both the weak and strong coupling regimes. In the weak coupling regime, the aim is to achieve coherent control over the time evolution of the spin of SMMs while applying rapid microwave pulses at sub-Kelvin temperatures, where polarization of the spin bath may be achieved without large magnetic fields, allowing the suppression of dipolar dephasing. The continuing results of this experiment will be to provide a window into fundamental sources of decoherence in single-crystal SMMs in an energy range not thoroughly investigated. We expect that these conditions would allow us to study the quantum dynamics of the spins as governed by the intrinsic molecular magnetic anisotropy, which should give rise to non-well-defined Rabi oscillations of the spin state, including metastable precessional spin states. In the strong coupling regime, high quality factor superconducting CPW resonators have been designed and fabricated to investigate the vacuum Rabi splitting between a photon and the SMM spin. The proposed setup will permit measurements of coherent collective coupling between molecular spins and a low number of photons, ideally down to a single photon. This experiment may ultimately provide the opportunity for reaching the strong coupling regime with a single spin. Finally, this thesis also documents a research study into the impact of service-learning methodology on students' depth of learning and critical thinking skills during a novel nanoscale science and technology course offered in the UCF Physics Dept. The overall learning of students was assessed and results clearly showed improvement in both multiple choice pre/post-tests and critical reflection papers. We associate this improvement at least partially to the service-learning experience.
Show less - Date Issued
- 2019
- Identifier
- CFE0007442, ucf:52728
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007442
- Title
- Virtual Coaching of Novice Science Educators to Support Students with Emotional and Behavioral Disorders.
- Creator
-
Garland, Dennis, Dieker, Lisa, Vasquez, Eleazar, Hines, Rebecca, Rosenberg, Michael, University of Central Florida
- Abstract / Description
-
Due to a multitude of convergent circumstances, students labeled in the disability category of emotional and behavioral disorders (EBD) experience high rates of academic and behavioral failure. Such failure frequently leads to the students' dropping out of school, involvement in the judicial system, or a combination of those outcomes. Science is an academic content area that has the potential to enhance behavioral and academic success of students with EBD. Researchers, nonprofits, and...
Show moreDue to a multitude of convergent circumstances, students labeled in the disability category of emotional and behavioral disorders (EBD) experience high rates of academic and behavioral failure. Such failure frequently leads to the students' dropping out of school, involvement in the judicial system, or a combination of those outcomes. Science is an academic content area that has the potential to enhance behavioral and academic success of students with EBD. Researchers, nonprofits, and business leaders have provided an impetus for nationwide reform in science education. Concurrently, a corpus of legislation has influenced the preparation of new teachers to use evidence-based teaching practices while addressing the needs of an increasingly diverse student population. Using technology is one way that teacher educators are providing in-vivo learning experiences to new teachers during their classroom instruction. A multiple-baseline across-participants research study was used to examine the effectiveness of providing immediate feedback (within three seconds) to novice general science educators to increase their use of an evidence-based teaching strategy, known as a three-term contingency (TTC) trial while they taught. Feedback was delivered via Bug-in-the-Ear (BIE) technology and during whole-class instruction in which students with EBD were included. The teacher participants wore a Bluetooth earpiece, which served as a vehicle for audio communication with the investigator. Teachers were observed via web camera over the Adobe(&)#174;ConnectTM online conferencing platform. During the intervention, teachers increased their percentage of completed TTC trials, opportunities to respond, and praise or error correction. Student responses also increased, and maladaptive behaviors decreased.
Show less - Date Issued
- 2013
- Identifier
- CFE0004847, ucf:49681
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004847
- Title
- Inquiry as Practice for Continuous Improvement: A Framework for the Curricular Redesign of the Education Doctorate in Curriculum and Instruction Research Continuum at the University of Central Florida.
- Creator
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Clark, Paola, Boote, David, Vitale, Thomas, Hopp, Carolyn, Swan, Bonnie, University of Central Florida
- Abstract / Description
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This design-based research study was conducted at the University of Central Florida with the aim of informing the Education Doctorate in Curriculum and Instruction research course sequence within the College of Education and Human Performance. The main purpose of this dissertation was to enhance and enrich the Ed.D. in Curriculum and Instruction research continuum courses to ensure that they support the use of applied research and practical theory as central to the development of scholarly...
Show moreThis design-based research study was conducted at the University of Central Florida with the aim of informing the Education Doctorate in Curriculum and Instruction research course sequence within the College of Education and Human Performance. The main purpose of this dissertation was to enhance and enrich the Ed.D. in Curriculum and Instruction research continuum courses to ensure that they support the use of applied research and practical theory as central to the development of scholarly practitioners. In order to fulfill its purpose, this study addressed three main goals: clarifying the Ed.D. in Curriculum and Instruction program goals, objectives, and research continuum learning outcomes; developing research course sequence curriculum maps; and redesigning sample curriculum units for individual research courses.The curriculum mapping and redesign process was supported by research-based design choices in alignment with the practice-oriented nature of the program. These design choices included the Carnegie Project on the Education Doctorate Working Principles and Design Concepts, in particular the use of Inquiry as Practice as the main redesign framework in combination with improvement science principles. These frameworks were first used as foundations to clarify the Ed.D. in Curriculum and Instruction program goal and overall objectives. Later, user-centered design principles were applied to create faculty and student personas in order to inform the redefinition of individual research course learning outcomes. In addition, the frameworks were used to create alignment matrices and demonstrate where they supported each of the program objectives. This iterative process was carried out simultaneously with the course curriculum map redesign for each of the research continuum courses using backward design principles, the spiral curriculum model, and taking into consideration the most suitable instructional modality for learning outcomes, including the best suited education technology choices. Further, some proposed sample course units were developed in greater detail utilizing Universal Design for Learning principles and the prioritization of learning outcomes. Course contents were selected based on cognitive and reasoning learning theories pertaining to mixed method courses for professional practitioners.The developed prototypes support the continuous Ed.D. in Curriculum and Instruction curriculum redesign efforts of the program and College of Education and Human Performance at the University of Central Florida and clearly distinguish the Ed.D. in Curriculum and Instruction program from traditional, research-based doctorates. Similarly, at the national level, this study also sought to benefit other CPED-influenced professional practice programs, as they also consider the careful redesign of their research or inquiry sequences to define their programs as ones that fully address the needs of advanced professional educators. Acknowledging the limitations of this study, further studies should identifying the motivational, cognitive, and organizational causes affecting student learning outcomes. Implementing and evaluating the prototypes developed to ensure their effectiveness in preparing scholarly practitioners to act as agents of change in their professional practices.
Show less - Date Issued
- 2016
- Identifier
- CFE0006285, ucf:51585
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006285