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2,315 Matching Results
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The Use of an Online Readiness Assessment to Determine Necessary Skills, Aptitude, and Propensities for Successful Completion in a Secondary Online Credit Course
A gap exists in education research in the area of online readiness for secondary courses. In the current study, I examined the use of an online readiness assessment to inform students and educators of the necessary skills, aptitudes, and propensities needed for secondary course completion. In this research study, the perceptions of 17 secondary students in a North Texas public school were examined. Using a three-phase design, qualitative demographic surveys, focus groups, and open-ended end-of-course success questionnaires were collected and analyzed. The findings revealed the Revised McVay Online Readiness Assessment beneficial for providing students with information regarding skills needed for their online course success. Students were interested in how prior online experience influences online readiness and successful completion as well as the influence prior expectations of online learning had on online success. In addition, the study revealed the importance of student readiness relating to more specific self-regulatory skills including time-management, metacognitive self-monitoring, and task-strategies. The study results also revealed students found importance in knowing their comfort with online communication. K-12 school system and curriculum leaders may consider and take action to ensure effective curriculum and programs are implemented to achieve the desired results of student online course completion as well …
Date:
May 2018
Creator:
Vineyard, Tracy Elizabeth
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Use of Classic Musical Theatre Repertoire for Training Bel Canto Techniques in the Undergraduate Baritone Voice
For applied teachers of the bel canto method of singing, classical musical theatre repertoire provides an abundant resource of material for teaching the undergraduate baritone voice. Select classic musical theatre repertoire, fitting within the parameters of suitable range, tessitura, duration, and thematic material for an undergraduate baritone, will be used to demonstrate the application of bel canto techniques such as: glottal onsets, the connection between the speaking voice and singing voice, suitable vowels in building the upper range, and teaching sostenuto and legato. This dissertation serves as a guide for teaching sound vocalism through classic musical theatre repertoire.
Date:
May 2017
Creator:
Johnson, Brock
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Use of Data and Readability Analytics to Assist Instructor and Administrator Decisions in Support of Higher Education Student Writing Skills
In 2016 employers hiring four-year college graduates indicate that 27.8% have deficiencies in written communication. Postsecondary learning objectives should focus on improving specific writing skills like grammar, sentence structure, and vocabulary usage for individual students and monitoring text readability as an overall score to measure learning outcomes. Web-based applications and the tools integrated into them have the potential to serve as a diagnostic solution for analyzing the text readability and writing skills of students. Organization and structuring of Canvas data was required before adding text readability and other writing skills analytics as part of the process to develop diagnostic learning analytics that interprets student writing skills in the learning management system. Decision modeling was used to capture and describe the specifics of literacy improvement decisions for instructors and administrators in a graphical notation and structured format.
Date:
May 2018
Creator:
Collins, Heidi
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Use of Multiple Stops in Works for Solo Violin by Johann Paul Von Westhoff (1656-1705) and Its Relationship to German Polyphonic Writing for a Single Instrument
Johann Paul von Westhoff's (1656-1705) solo violin works, consisting of Suite pour le violon sans basse continue published in 1683 and Six Suites for Violin Solo in 1696, feature extensive use of multiple stops, which represents a German polyphonic style of the seventeenth-century instrumental music. However, the Six Suites had escaped the public's attention for nearly three hundred years until its rediscovery by the musicologist Peter Várnai in the late twentieth century. This project will focus on polyphonic writing featured in the solo violin works by von Westhoff. In order to fully understand the stylistic traits of this less well-known collection, a brief summary of the composer, Johann Paul Westhoff, and an overview of the historical background of his time will be included in this document. I will analyze these works, including a comparison between the works of Westhoff and those of other composers during his time, to prove that Westhoff's solo works establish multiple stops as a central factor of German violin playing of the time, and, thus, to promote Westhoff's works as a complement to the extant repertoire of unaccompanied violin music written in the Baroque era before Johann Sebastian Bach's solo violin works and Georg Philipp Telemann's …
Date:
May 2017
Creator:
Gao, Beixi
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Use of Orchestral Excerpts in Cello Pedagogy and Daily Exercises
Auditions often require performance of orchestral excerpts as part of the screening process because orchestral literature contains a wealth of technical challenges at different levels of difficulty; however, many cello teachers still only use etudes, sonatas, and concertos for musical development and technical application and do not use orchestral excerpts as pedagogical tools or daily exercises. This dissertation, in an effort to standardize orchestral excerpts as part of common technical exercises, includes the ten most popular major excerpts selected from thirty audition lists from major orchestras in the United States. Analysis of each excerpt highlights different technical elements, provides short exercises to overcome these challenges, and discusses the aspects of cello playing that will benefit most from practicing orchestral excerpts. In this way, these selections can be played in preparation for auditions, as well as incorporated into daily practice routines.
Date:
May 2018
Creator:
Chuang, Hsiang-Chu
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Use of Social Media in Informal Scientific Communication Among Scholars: Modeling the Modern Invisible College
The concept of the invisible college is a key focus of scientific communication research with many studies on this topic in the literature. However, while such studies have contributed to an understanding of the invisible college, they have not adequately explained the interaction of social and structural processes in this phenomenon. As a consequence, past research has described the invisible college differently based on researchers’ perspectives, resulting in misinterpretations or inconsistent definitions of the relevant social and structural processes. Information science and related disciplines have focused on the structural processes that lead to scholarly products or works while placing less emphasis on the social processes. To advance understanding of the invisible college and its dimensions (including both social processes and structural processes), a proposed model (Modern Invisible College Model, MICM) has been built based on the history of the invisible college and Lievrouw’s (1989) distinction between social and structural processes. The present study focuses on the social processes of informal communication between scholars via social media, rather than on the structural processes that lead to scholarly products or works. A developed survey and an employed quantitative research method were applied for data collection. The research population involved 77 scholars from …
Date:
May 2014
Creator:
Algarni, Mohammed Ayedh
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Using a Multimodal Sensing Approach to Characterize Human Responses to Affective and Deceptive States
Different ways to measure human affective and deceptive reactions to stimulus have been developed. One method is a multimodal approach using web camera, thermal imaging camera and physiological sensors data to extract different features in the human face (verbal and non-verbal behavior) such as breathing rate, heart rate, face temperature, skin conductance, eye tracking, language analysis and facial expressions among others. Human subjects from different ages and ethnicity were exposed to two different experiments were they watched videos (affection recognition) and others answered an interview session (deception recognition). With the data collected from videos (thermal and visual), different regions of interest (ROI) of the face were selected as well as the whole picture. The ROI were determined based on the most sensitive parts of the face where larger changes of temperature or other physiological features are recorded. It was also analyzed the language (written and spoken) in order to obtain the verbal modalities. The data has been compared among the subjects to determine whether the deceptive and affective reactions of a person can be predicted using multimodal approach. From the multiple data obtained, a characterization of reactions is proposed when subjects are exposed to different stimulus, positive or negative, as …
Date:
May 2013
Creator:
Narvaez-Valle, Alexis
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Using Assessment Techniques to Guide Library Service Improvements
This presentation discusses assessment techniques used to guide library service improvements. The assessments used are part of a triangulation method that uses three approaches of assessment in order to determine specific user needs and areas for improvement.
Date:
May 27, 2011
Creator:
Wahl, Diane; Avery, Elizabeth Fuseler & Downey, Annie
Object Type:
Presentation
System:
The UNT Digital Library
Using Baroque Vocal Music to Introduce Horn Students to the Musical Concepts of Expression, Articulation, Phrasing, and Tempo
Baroque music is an area largely neglected in the music education of young horn students and wind players in general. Baroque horn repertoire is very demanding primarily due to the range. Baroque composers wrote for horn using the uppermost register of the instrument. In this range the partials are closer together, allowing for more melodic writing. This music requires an advanced level of technique, endurance, and ability. Often this repertoire is not suitable for students until they are well into their collegiate years of study. Frequently this music is performed on descant horns. Since only a small number of middle school and high school horn students continue to play after they leave their school band programs, they many never get first hand experience performing Baroque music. Vocal students are often introduced to Baroque arias early in their training. Purcell’s songs and arias are an excellent example of the literature that young voice students use. These arias and songs can be the perfect portal to Baroque music for horn students as well. Here I have created an edition of Henry Purcell’s songs and arias for young horn students. Each aria used the text as a guide for the “affect” and its …
Date:
May 2014
Creator:
Winter, Angela K.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Using Complexity Thinking to Build Adaptive Capacity in Schools: an Analysis of Organizational Change in California
In response to reductionist neoliberal approaches to organizational change that have been prevalent in American education since the 1980s, some educators have begun to employ a whole-systems approach to improving student learning. These approaches, based in complexity sciences, recognize the nonlinear, unpredictable nature of learning and the interconnected relationships among myriad factors that influence the teaching/learning that occurs in schools. In the summer preceding the 2011-2012 school year, a cohort of educators from California Unified School District participated in a 10-day training regarding human systems dynamics (HSD) and complexity thinking. Their goal was to build adaptive capacity throughout the district in the pursuit of improving student learning. Through analysis of the interviews from seven target participants from this training, this study investigates what target participants report regarding their use of HSD methods and models in their work in schools across the 2011-2012 school year. Findings indicate that target participants displayed distinct arcs of use of HSD methods/models. In addition, findings suggest that target participants’ need for support in learning and implementing HSD methods/models, the influence of systemic and individual history, and the role of agency affected their “arcs of use.” This study illuminates the ways in which HSD methods/models support …
Date:
May 2014
Creator:
Martin, Teddi Eberly
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Using Data Envelopment Analysis to Predict the Impact of Socioeconomic Variables on Instructional Spending Efficiency and Student Achievement at the Elementary Level
Public school finance and school accountability are highly contentious subjects. This correlational study illustrates campus level instructional spending efficiency by examining various input and output variables. The study utilizes data envelopment analysis of selected variables to compare elementary campuses and create instructional spending efficiency measures within purposively selected metropolitan educational service regions in Texas. The study analyzes elementary school instructional spending and student classification as economically disadvantaged compared to student achievement in English language arts. The study finds a direct relationship between instructional spending efficiency and student achievement. The relationship between the socioeconomic variable of economically disadvantaged status is inverse. This finding suggests that in depth examinations of highly inefficient, but relatively high academic performing cases, may uncover effective instructional or operational practices tailored to the needs of the sub-populations.
Date:
May 2019
Creator:
Ham, Richard Dale
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Using Geographic Information Systems for the Functional Assessment of Texas Coastal Prairie Freshwater Wetlands Around Galveston Bay
The objective of this study was to deploy a conceptual framework developed by M. Forbes using a geographic information system (GIS) approach to assess the functionality of wetlands in the Galveston Bay Area of Texas. This study utilized geospatial datasets which included National Wetland Inventory maps (NWI), LiDAR data, National Agriculture Imagery Program (NAIP) imagery and USGS National Land Cover data to assess the capacity of wetlands to store surface water and remove pollutants, including nitrogen, phosphorus, heavy metals, and organic compounds. The use of LiDAR to characterize the hydrogeomorphic characteristics of wetlands is a key contribution of this study to the science of wetland functional assessment. LiDAR data was used to estimate volumes for the 7,370 wetlands and delineate catchments for over 4,000 wetlands, located outside the 100-yr floodplain, within a 2,075 square mile area around Galveston Bay. Results from this study suggest that coastal prairie freshwater wetlands typically have a moderate capacity to store surface water from precipitation events, remove ammonium, and retain phosphorus and heavy metals and tend to have a high capacity for removing nitrate and retainremove organic compounds. The results serve as a valuable survey instrument for increasing the understanding of coastal prairie freshwater wetlands …
Date:
May 2010
Creator:
Enwright, Nicholas
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Using Posterior Predictive Checking of Item Response Theory Models to Study Invariance Violations
The common practice for testing measurement invariance is to constrain parameters to be equal over groups, and then evaluate the model-data fit to reject or fail to reject the restrictive model. Posterior predictive checking (PPC) provides an alternative approach to evaluating model-data discrepancy. This paper explores the utility of PPC in estimating measurement invariance. The simulation results show that the posterior predictive p (PP p) values of item parameter estimates respond to various invariance violations, whereas the PP p values of item-fit index may fail to detect such violations. The current paper suggests comparing group estimates and restrictive model estimates with posterior predictive distributions in order to demonstrate the pattern of misfit graphically.
Date:
May 2017
Creator:
Xin, Xin
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Using Progressive Ratio Schedules to Evaluate Edible, Leisure, and Token Reinforcement
The general purpose of the current study was to evaluate the potency of different categories of reinforcers with young children diagnosed with developmental delays. The participants were two boys and one girl who were between the ages of seven and eight. In Phase 1, we evaluated the reinforcing potency of tokens, edible items, and leisure items by using a progressive ratio (PR) schedule. For two participants, we found that tokens resulted in the highest PR break points. For one participant, edibles resulted in the highest break points (tokens were found to have the lowest break points). In Phase 2, we evaluated the effects of presession access on the break points of edibles and tokens. This manipulation served as a preliminary analysis of the extent to which tokens might function as generalized conditioned reinforcers. During Phase 2, presession access altered the break points of edibles, but not tokens. The findings of the current study suggest that PR schedules may be useful as a means to better assess certain dimensions of tasks and how they affect reinforcer effectiveness (e.g., amount of effort the client is willing to exert, the duration at which the client willing to work, how many responses the client …
Date:
May 2013
Creator:
Russell, Danielle M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Using the Abraham Solvation Parameter Model to Predict Solute Transfer into Various Mono- and Multi-Functional Organic Solvents
The Abraham Solvation Parameter Model (ASPM) is a linear, free-energy relationship that can be used to predict various solute properties based on solute-solvent interactions. The ASPM has been used to predict log (K or Cs,organic/Cs,gas) values, as well as log (P or Cs,organic/Cs,water) values for solute transfer into the following organic solvents: 2-methoxyethanol, 2-ethoxyethanol, 2-propoxyethanol, 2-isopropoxyethanol and 2-butoxyethanol. The derived log (K or Cs,organic/Cs,gas) correlations describe the experimental data to within 0.14 log units (or less). The derived log (P or Cs,organic/Cs,water) correlations describe the experimental data to within 0.16 log units (or less). The ASPM has also been used to predict the enthalpies of solvation of organic solutes dissolved in the following solvents: acetic acid, dimethyl carbonate, diethyl carbonate, 1-butanol, 1-pentanol, 1-hexanol. The derived enthalpy of solvation correlations, using the L solute descriptor, describe the experimental data to within 2.50 log units (or less). The derived enthalpy of solvation correlations, using the V solute descriptor, describe the experimental data to within 3.10 log units (or less). Validation analyses have been performed on several of the correlations; and, as long as the solute descriptors fall within the given ranges as reported, the original correlations show good predictive ability for determining …
Date:
May 2018
Creator:
Hart, Erin F
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Using Web-Based Instruction to Teach Music Theory in the Piano Studio: Defining, Designing, and Implementing an Integrative Approach
This dissertation rationalizes the best use of Web-based instruction (WBI) for teaching music theory to private piano students in the later primary grades. It uses an integrative research methodology for defining, designing, and implementing a curriculum that includes WBI. Research from the fields of music education, educational technology, educational psychology, and interaction design and children receive primary consideration. A synthesis of these sources outlines several research-based principles that instructional designers can use to design a complete blended learning environment for use within the piano studio. In addition to the research-based principles, the precise methods of determining instructional tasks and implementing the program online are described in detail. A full implementation is then deployed, and piano teachers evaluate the extent to which the online program fulfills the research-based principles. This dissertation does not argue for the complete migration of theory instruction from traditional workbook approaches to an entirely Web-based medium but rather outlines the best use of face-to-face instruction, collaboration amongst students, teachers, and parents, and interaction with a Web-based program. This formative research provides a complete model of integrating WBI within the piano studio that can guide instructional designers and music educators.
Date:
May 2010
Creator:
Carney, Robert D.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Utilization of Mental Health Services by African American Undergraduate Students
This study explores where African American college students find mental health support and why those supports are chosen. Greater knowledge of the sources of mental health support sought by African American college students can assist higher education institutions in adapting current services to meet the needs of this specific student population. A qualitative phenomenological approach was utilized, and the study's sample included twelve participants, 6 female and 6 male, from a large public four-year university in Texas. These participants, undergraduate students with ages ranging from 18 to 24, were given a survey and completed two semi-structured interviews throughout one semester. Results indicated that study participants were more likely to utilize informal than formal support for their mental health and many had no source of support. Family stigma, peer attitudes, as well as internal and external pressures all influenced participant's choices to seek support. Based on findings from the study, recommendations for two distinct groups, counseling center directors and higher education administrators, are also discussed.
Date:
May 2019
Creator:
Wood, Olivia S
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Utilizing North American Art Song Settings of Psalm Texts in Worship Services: an Annotated Guide for Singers, Voice Instructors, and Music Ministers
This dissertation provides a guide for appropriate use of North American art song settings of biblical psalms for solo voice written after 1950 in the worship services of Christian faiths. The songs analyzed are for all voice parts and a variety of accompanying ensembles. The placement of each song on a specific calendar day is guided by the individual church calendars and lectionaries, on the prevalent themes of the text, and the characteristics of the musical setting. Performance of these songs only in a concert setting limits their usefulness for singers, voice teachers, and music directors alike. A new and worthy performing context can be established by analyzing the text and musical settings.
Date:
May 2014
Creator:
Siddons, Kyle
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Utilizing Traditional Environmental Knowledge in Industrialized Nations to Assist in Disaster Evacuations
Using traditional ecological knowledge (TEK), which is typically reserved for understanding how indigenous societies function successfully, and applying this to developed countries' ideas of disaster planning and response, emergency planners, public officials, and lay-persons can gain an understanding of their environment. Stories, history, education, and The waterborne evacuation of Lower Manhattan on September 11, 2001 provides a backdrop with which to test the tenets of TEK in a developed nation setting. This dissertation has found that TEK was effective when used by a developed nation and should be integrated into the current disaster system in the US.
Date:
May 2013
Creator:
Lea, Brandi M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
UV Magnetic Plasmons in Cobalt Nanoparticles
Access:
Use of this item is restricted to the UNT Community
The main goals of this research were to fabricate magnetic cobalt nanoparticles and study their structural, crystal structure, optical, and magnetic properties. Cobalt nanoparticles with average particle size 8.7 nm were fabricated by the method of high temperature reduction of cobalt salt utilizing trioctylphosphine as a surfactant, oleic acid as a stabilizer, and lithium triethylborohydride as a reducing reagent. Energy-dispersive X-ray spectroscopy (EDX) analysis confirmed the formation of cobalt nanoparticles. High resolution transmission electron microscopy images show that Co NPs form both HCP and FCC crystal structure. The blocking temperature of 7.6 nm Co NPs is 189 K. Above the blocking temperature, Co NPs are single domain and hence showed superparamagnetic behavior. Below the blocking temperature, Co NPs are ferromagnetic. Cobalt nanoparticles with a single-domain crystal structure support a sharp plasmon resonance at 280 nm. Iron nanoparticles with average particle size 4.8 nm were fabricated using chemical reduction method show plasmon resonance at 266 nm. Iron nanoparticles are ferromagnetic at 6 K and superparamagnetic at 300 K.
Date:
May 2019
Creator:
Bhatta, Hari Lal
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
“Valentine’s Day” and Other Works
The following collection includes three short stories and two essays compiled with a critical preface. “Valentine’s Day” explores the limits of friendship and love in various situations including, two road trips (one fictional and one factual), pet ownership, and the impersonations of Frank Sinatra.
Date:
May 2012
Creator:
Thornburg, Chrissie
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Validation and Evaluation of Emergency Response Plans through Agent-Based Modeling and Simulation
Biological emergency response planning plays a critical role in protecting the public from possible devastating results of sudden disease outbreaks. These plans describe the distribution of medical countermeasures across a region using limited resources within a restricted time window. Thus, the ability to determine that such a plan will be feasible, i.e. successfully provide service to affected populations within the time limit, is crucial. Many of the current efforts to validate plans are in the form of live drills and training, but those may not test plan activation at the appropriate scale or with sufficient numbers of participants. Thus, this necessitates the use of computational resources to aid emergency managers and planners in developing and evaluating plans before they must be used. Current emergency response plan generation software packages such as RE-PLAN or RealOpt, provide rate-based validation analyses. However, these types of analysis may neglect details of real-world traffic dynamics. Therefore, this dissertation presents Validating Emergency Response Plan Execution Through Simulation (VERPETS), a novel, computational system for the agent-based simulation of biological emergency response plan activation. This system converts raw road network, population distribution, and emergency response plan data into a format suitable for simulation, and then performs these simulations …
Date:
May 2018
Creator:
Helsing, Joseph
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Validation of an Observation and Evaluation Instrument for the Supervision of Middle and Secondary Pre-Service Teachers
The purpose of the study was to determine the validity and reliability of a revised observation and evaluation instrument of middle and secondary pre-service clinical teaching to be used as part of the clinical supervision cycle and for formative purposes. The North Texas Appraisal of Classroom Teaching (NTACT) serves as a performance assessment tool utilized by a south-central university-based educator preparation program for the evaluation and supervision of pre-service teachers during their last semester of their program. The researcher piloted and field-tested a redesigned observation and evaluation instrument (NTACT-V2) on observer participants with varying educational experiences in the south-central region. To accumulate evidence of validity and reliability, this study employed methods of factor analysis and generalizability study for developing a valid and reliable instrument to guide the refinement process of the NTACT observation and evaluation instrument. Some of the significant conclusions reached in this study were (a) the NTACT-V2 is a practical, user-friendly classroom observation and evaluation instrument; (b) the instrument refined and developed in this study exhibits appropriate content, face, and criterion validity as determined by a panel of experts and an extensive review of the literature; and, (c) a variety of observers can use the evaluation instrument with …
Date:
May 2017
Creator:
Bush, Brandon (Brandon Lee)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Validation Study of the Triple E Rubric for Lesson Design: A Measurement Tool for Technology Use in the Classroom
This validation study examined the Triple E Rubric for Lesson Design as a measurement tool to test the effectiveness of a lesson when using technology to support learning goals. This study also measured the content and concurrent validity as well as reliability of the Triple E Rubric developed by Liz Kolb.
Date:
May 2019
Creator:
Schatzke, Sheila Erin
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library