Digital Commons Network^™

A Mixed Method Analysis Of Leveled Literacy Intervention With Second Grade Students In An Urban Midwest Public School, Angela Glass

Dissertations

Early identification and intervention for struggling readers increased the likelihood of students identified as proficient; ultimately leading to future success. The researcher sought to evaluate the Leveled Literacy Intervention (LLI) program in a Midwest urban school district, to help close the achievement gap between students’ reading levels and students reading on grade level. The purpose of the study was to investigate the difference in STAR reading scaled scores between struggling 2nd grade students who received LLI and peers who did not receive LLI. The researcher also examined the possible relationship between the increase in students’ literacy skills and fidelity of …

Priority Registration For Well Prepared High School Seniors: A Mixed Method Study At A California Community College, Joel Ruble

Dissertations

Purpose: The purpose of this mixed methods sequential explanatory mixed methods study is to explain the association between priority registration and student success as measured by success in transfer level mathematics and English at Sierra College. In addition, it to explain student perceptions of priority registration and their success and whether students perceive a relationship between their success and priority registration.

Methodology: Success will be measured according to the rates at which Sierra College students that are low income and first generation are successful in transfer level math and English. Research questions one and two consider the quantitative …

A Case Study Of Strategic Governance In The Implementation Of Guided Pathways At Scale At California Community Colleges, Hayley Ashby

Dissertations

Purpose: Community colleges across the United States are implementing systemic change models such as guided pathways to increase student success. The purpose of this multiple case study was to describe the role of strategic governance in the implementation of guided pathways at scale at California community colleges.

Methodology: This phenomenological qualitative study used a multiple-case embedded case study methodology to collect data aligned with the four imperatives of strategic governance theory. Semistructured interviews were conducted with campus leaders involved in guided pathways implementation at three California community colleges. Archival records and documentation were used to triangulate the data.

Findings: Colleges …

Technology Integration: A Mixed Methods Study Of Best Practices Of Technology Integration As Perceived By Expert Middle School Teachers, Carliza Bataller

Dissertations

Purpose: The purpose of this mixed methods sequential explanatory study was to identify and describe best practices in technology integration in middle school classrooms as perceived by expert middle school teachers. Additionally, it was the purpose of the study to determine the most important best practices and perceived barriers to successful technology integration as perceived by expert middle school teachers.

Methodology: This study included a survey sent to 34 middle school teachers from five counties in northern California who were considered experts in technology integration. Data were gathered from the initial survey instrument and followed up by interviews with participant …

Self-Efficacy Of Early Childhood Teachers In Science, Technology, Engineering, And Mathematics, Ariella Rachel Donnelley Smith

Dissertations

Purpose. The purpose of this study was to identify the self-efficacy of early childhood teachers toward STEM subjects as measured on the Teacher Efficacy and Attitudes toward STEM Survey (T-STEM) and to explore factors that influence this confidence.

Methodology. A quantitative approach with two open-ended items was selected for this study, seeking to elicit both quantitative and qualitative data from participants. This approach allowed for multiple viewpoints to be expressed, with the qualitative data collected simultaneously with the quantitative data, and the former designed to illuminate reasons influencing the latter in a complimentary approach. The population for the study included …

Consuming Victory: American Women And The Politics Of Food Rationing During World War Ii, Kelly Cantrell

Dissertations

Life on the home front formed the most ubiquitous American experience during World War II. Americans in the early 1940s found themselves caught in a rapidly evolving world, which wrought changes both great and small on their daily lives. This project explores women’s responses to some of that change. The federal government created wartime agencies to control and direct most elements of daily life from public opinion, to factory production, to employment practices, to family food procurement. The Office of Price Administration was charged with creating a food rationing program to insure steady availability of foodstuffs at home while suppling …

An Examination Of The Relationships Among Organizational Support, Self-Efficacy Beliefs, And Engagement In Data-Driven Decision-Making, Kristal Pollard

Dissertations

A culture of accountability in K-12 education has created demand for teachers and administrators to closely examine student performance on assessments. A number of schools have embraced data-driven decision-making as an approach to meeting this need. Data-driven decision-making refers to the systematic process of collecting, analyzing, interpreting, and making instructional decisions based on data (Schildkamp & Kuiper, 2009; Mandinach, 2012). Generally, educators analyze data collected on assessments at the classroom level and on benchmark or interim assessments at the school-wide level. However, teachers generally feel unprepared to engage in data-driven decision-making. Few studies have examined the psychological aspect of engagement …

Exploring The Moderating Effects Of Family Functioning And Child Grit On The Relation Between Adhd Endophenotypes And Adhd Symptoms, Karin Fisher

Dissertations

ADHD is a heritable condition, with unknown etiologies and different phenotypic expressions in affected individuals. Its genetic vulnerability may be expressed only when specific environmental conditions are present. Endophenotypes stand in the causal path between genes and disease and are found in children diagnosed with ADHD as well as unaffected relatives. This study investigated the link between ADHD endophenotypes and the heterogeneous expression of ADHD symptoms in 84 children aged 11 to 17 years and explored whether this relation depends on family functioning and resilience of the child (i.e., grit). It was hypothesized that (1) ADHD endophenotypes would be moderately …

Using Mindset Pedagogy To Promote Growth And Increase Efficacy In Student Writers, Sara Hoeve

Dissertations

This dissertation offers four in-depth, vivid profiles of twelfth grade writers and the ways in which writing mindsets impact self-beliefs and inform the writing process. The multiple case study explores the impact of a mindset pedagogy, which is defined as an instructional paradigm that emphasizes the malleable nature of writing, as an ability that can be developed with effort, learning, and dedication over time. This belief contrasts the notion that writing ability is fixed trait that cannot be significantly developed over time.

Derived from Dweck's mindset theory, my dissertation argues for a discipline-specific construct of the "writing mindset,” which refers …

A Mixed-Methods Investigation On Generalization Of Positive Behavior Supports Skills From Early Childhood To Kindergarten In A Midwestern School District, Ann M. Westbrook

Dissertations

Using a mixed-methods approach, the researcher investigated the generalization of Positive Behavior Supports Skills (PBIS) within an Early Childhood Special Education (ECSE) program, implemented with fidelity, as evidenced by statewide recognition for 10 years in a row, to the kindergarten setting in a Midwestern School District. Through investigating the generalization of PBIS social-emotional skills, the researcher aimed to identify possible frameworks for schools to better prepare students for the kindergarten transition. To investigate the generalization of skills, the researcher used secondary data in the form of 175 externalizing behavior screener scores for students who participated in a PBIS ECSE program …

Evaluating Educators’ Competency In The Use Of Computer Technology Toward Integrating Technology Into Libyan Higher Education, Ilham A. Hbaci

Dissertations

The primary purpose of this quantitative survey research with supplemental qualitative data was to evaluate issues related to the integration of technology into Libyan higher education from Libyan educators’ perspectives. All participants were Libyan educators who worked at the main universities in Eastern Libya (Benghazi and Omer Al-Moktar). The study focused on four critical computer technology skill areas: basic computer operation, use of application software, use of the Internet, and use of peripheral technologies (equipment that could be connected to computers such as printers and cameras). A total of 161 Libyan educators participated in this study by completing an Arabic …

The Relationship Between Calibration, Mindset, Mathematics Anxiety And Achievement In Pre-Service Elementary Teachers, Brian Arthur Christopher

Dissertations

According to most recent studies in mathematics education, mathematics anxiety is highly prevalent in students’ learning, and in fact has significant negative relationship with mathematics achievement. Thus, as educators we need to understand the factors that explain the relationship between mathematics anxiety and achievement to find any insights for increasing mathematics achievement. This dissertation explored this particular issue through constructs, calibration and mindset, and their relationship with mathematics anxiety and achievement of pre-service elementary teachers. The dissertation has three manuscripts with the first two manuscripts focusing on the relationship between calibration, mathematics anxiety and achievement, and the third manuscript focusing …

A Derivation Of The Percentile Based Tukey Distributions And A Comparison Of Monotonic Versus Nonmonotonic And Rank Transformations, Yevgeniy Ptukhin

Dissertations

The Method of Moments (MOM) has been extensively used in statistics for obtaining conventional moment-based estimators of various parameters. However, the disadvantage of this method is that the estimates “can be substantially biased, have high variance, or can be influenced by outliers” (Headrick & Pant, 2012). The Method of Percentiles (MOP) provides a useful alternative to the MOM when the distributions are non-normal, specifically being more computationally efficient in terms of estimating population parameters. Examples include the generalized lambda distribution (Karian & Dudewicz, 1999), third order power method (Koran, Headrick & Kuo, 2015) and fifth order power method (Kuo & …

Probabilistic And Extremal Problems In Combinatorics, Sean English

Dissertations

Graph theory as a mathematical branch has been studied rigorously for almost three centuries. In the past century, many new branches of graph theory have been proposed. One important branch of graph theory involves the study of extremal graph theory. In 1941, Turán studied one of the first extremal problems, namely trying to maximize the number of edges over all graphs which avoid having certain structures. Since then, a large body of work has been created in the study of similar problems. In this dissertation, a few different extremal problems are studied, but for hypergraphs rather than graphs. In particular, …

Teacher Perspectives On Implementation And Outcomes Of A Character Education Program: A Comparative Case Study At Three Public Middle Schools, Grace A. Tennant

Dissertations

In the United States, character education employs a lengthy history in the public school system. As a result of recent legislation, accountability measures for schools in the United States and Colorado have changed. Teachers are now being evaluated on the climate and culture in their classrooms and schools. Academic growth among students in United States schools is slow, and an achievement gap continues to exist. One possible solution to these problems is character education. This comparative case study examined teacher perceptions about implementation and outcomes regarding a newly implemented character education program delivered through a class structure called Crew. Data …

Synthetic And Theoretical Studies For Cyclization Reactions To Form C-C And C-N Bonds, Nicholas Jentsch

Dissertations

Natural product total synthesis provides an alternative method for obtaining medicinally relevant compounds in a more efficient process with higher yields than what nature can provide. Natural products pose significant synthetic challenges due to the unique heterocyclic skeletons with fused and spirocyclic ring systems. Therefore, it is paramount to develop efficient reaction methodologies targeting substructures such as cyclic ureas and spiro[4.5]decanes which are prominent among marine natural products and Lycopodium alkaloids, respectively. Presented here is a compilation of research seeking to develop synthetic methods for the construction of cyclic moieties such as those previously mentioned. The objectives that are addressed …

A Study Of The Protective Factors That Foster Resilience In Teachers, Zundra Gates

Dissertations

The purpose of this study was to compare the protective factors of teachers in various fields: discipline, tested and non-tested subject areas, and teacher certification route. The study involved 161 kindergarten to twelfth grade Mississippi teachers who were full-time during the 2016-2017 school year. The 36-item Resiliency Questionnaire was used to measure the presence of six protective factors. The six protective factors that were examined on the questionnaire are: purpose and expectation (PE), nurture and support (NS), positive connections (PC), meaningful participation (MP), life guiding skills (LGS), and clear and consistent boundaries (CCB). A multivariate analysis of variance (MANOVA) test …

Mechanisms Driving Suicidal Ideation To Action: The Impact Of Rumination And Cardiovascular Reactivity On Momentary Fluctuations In Pain Tolerance And Persistence, Keyne Law

Dissertations

To prevent suicide, it is crucial to understand the mechanisms and processes associated with deaths by suicide. The capability for suicide is a critical factor that enables an individual to endure the physical pain necessary to make a lethal suicide attempt (Joiner, 2005; Klonsky & May, 2015). Few studies have examined whether the ability to tolerate and persist through pain are subject to momentary fluctuations during different emotional contexts. This study sought to directly compare the effects of sadness rumination and anger rumination on pain tolerance and pain persistence. Furthermore, this study aimed to examine the effect of heart rate …

Adaptive Meshfree Methods For Partial Differential Equations, Jaeyoun Oh

Dissertations

There are many types of adaptive methods that have been developed with different algorithm schemes and definitions for solving Partial Differential Equations (PDE). Adaptive methods have been developed in mesh-based methods, and in recent years, they have been extended by using meshfree methods, such as the Radial Basis Function (RBF) collocation method and the Method of Fundamental Solutions (MFS). The purpose of this dissertation is to introduce an adaptive algorithm with a residual type of error estimator which has not been found in the literature for the adaptive MFS. Some modifications have been made in developing the algorithm schemes depending …

The Effect Of An Historical Geology Course On Students’ Attitudes Towards Science And Their Knowledge Of Deep Time As A Threshold To Their Knowledge Of Evolution, Allan Nolan

Dissertations

In America there exists a conflict between a small group of its citizens and the concept of evolution. Researchers have studied this conflict and the ways in which teachers might approach educational methodologies that not only address evolution in a sensitive manner, but also remain legally acceptable.

This research was designed to address teaching evolution in the context of deep time – the concept that time is vast and that geology and biology operate in a timescale of hundreds of millions to billions of years. In previous peer-reviewed works, it has been stated that deep time acts as a threshold …

Tangible Teaching: The Effect Of Physical Modeling On Community College Students’ Understanding Of Conservation Of Matter, Erick T. Moffett

Dissertations

Students’ weak understanding of conservation of matter is well documented; however, there is a paucity of research that provides science educators with actual examples of empirically proven curricula employing physical modeling that can be used in the chemistry classroom to teach this fundamental concept. An intervention (three sequential physical modeling activities) was developed and evaluated. The intervention was administered to two sections of a General Chemistry I course at a community college in the southeastern United States, and pre-test/post-test data using a published instrument were collected to evaluate the physical model’s effectiveness in developing students’ understanding of conservation of matter …

It’S In The Way You Move: The Effects Of Surface Luminance And Texture Discontinuities On Object-Reachability Revealed By Head-Motion In Virtual Reality, Jonathan K. Doyon

Dissertations

Perceiving distance is at the heart of everyday actions like reaching for a cup of coffee. This action may depend on the biomechanical restrictions of the actor (arm-length), the physical distance of the cup, and environmental variables such as surface luminance and texture. Four experiments were conducted to investigate the roles of two environmental variables (surface luminance and surface texture discontinuities) and two movement variables (average magnitude head displacement and the multifractal structure of head motion) in the perception of object reachability in virtual reality. Results suggest that surface texture discontinuities and overall surface luminance affect reaching judgments in different …

Using Digital Performance Feedback To Increase Teacher Integrity Of A Repeated Reading Intervention, Heather M. Whipple

Dissertations

The National Assessment of Educational Progress reports 64% of 4^th grade students and 66% of 8^th grade students are less than proficient in reading despite the availability of evidence-based interventions in school settings (NAEP, 2015). It is important to implement reading interventions with struggling readers and because the role of the school psychologist has shifted from providing direct intervention services to students to providing consultative services to teachers, it is important to find various methods to promote teachers’ adherence to these interventions. Treatment integrity has been defined as the degree to which an intervention is implemented as planned …

The Feasibility Of Using Inherent Optical Properties And The Apparent Optical Property Remote Sensing Reflectance To Estimate Suspended Particulate Matter, Particularly For Use In Airborne Hydrographic Surveys, Sarah Epps

Dissertations

Airborne hydrographic surveys are routinely used to create and update nautical charts around the world. This research is intended to assist in maximizing the utility of the data products made available from those surveys in accordance with the current survey–once, use–many–times initiatives. Specifically, this project evaluates the feasibility of using the data available airborne hydrographic systems that utilize bathymetric lasers and hyperspectral sensors to estimate the concentration of suspended particulate matter (SPM). SPM is sometimes also called suspended sediment. The ability to chart spatial distributions of SPM utilizing hydrographic survey systems already in operation will assist researchers, managers, and stakeholders …

The Role Of Career Optimism And Perceived Barriers In College Students’ Academic Persistence: A Social Cognitive Career Theory Approach, Ben H. Wu

Dissertations

Social Cognitive Career Theory (SCCT) suggests that one’s self-efficacy beliefs, one’s outcome expectations, and salient contextual influences impact the development of interests, goals, and goal-oriented behaviors. Additionally, initial support has been found in the SCCT literature to indicate that outcome expectations may mediate the relationship between self-efficacy and goals while contextual influences may moderate the relationship between self-efficacy and goals. By examining conditional indirect effects between academic self-efficacy, career optimism (an outcome expectation), perceived carrier barriers (a contextual influence), and intention to persist toward graduation (a goal) in a college student sample, this project aimed to further understand how these …

Geotraces And Beyond: Studies Of Trace Elements In Coastal And Open Ocean Waters With An Emphasis On The Effects Of Oxygen Depletion And Hydrothermal Plumes, Peng Ho

Dissertations

We investigated various dissolved trace element (dTE) distributions in two distinct areas: the coastal northern Gulf of Mexico and the eastern tropical Pacific Ocean.

A multi-year (2007‒2011) chemical time series of eight stations in the western Mississippi Sound (MS) and northwestern Mississippi Bight (MB) was undertaken to examine the factors affecting chemical distributions in this dynamic region. Key findings include the frequent development of bottom water hypoxia in MB during late spring-summer, the likely contribution of submarine groundwater discharge (SGD) to the material flows, and observation of effects of episodic events including tropical storms and the opening of the Bonnet …

Investigation Of Vaporization Enthalpies And Vapor Pressures Of Organic Compounds By Correlation Gas Chromatography, Carissa Nelson

Dissertations

Thermodynamic properties of organic compounds are useful to scientists and manufacturers in many areas of research and technology. This work focuses on measuring and reporting these properties on materials of commercial, environmental and scientific interest. Vaporization enthalpies and vapor pressures of several organic compounds have been studied using correlation gas chromatography (CGC) and are reported here as well as in recent publications. The CGC method allows for the indirect measurement of these properties in instances where these materials are available only in mixtures or in very small amounts.

The qualities of these measurements for any chosen target are directly related …

Indicators And Precipitators Of Special Educator Satisfaction: The Role Of Certification And Advanced Coursework, Jessica Spencer

Dissertations

Special education teachers are leaving the education field at a higher rate than other education professionals. The annual attrition rate for special education teachers is estimated to be between 8-10% of special educators across the United States. These attrition rates are concerning, as they contribute to the shortage of quality special educators. Considering that an estimated 50% of special educators leave their positions within their first five years, researchers have conducted studies examining criteria centered on teacher retention and attrition. This study examined the findings of such studies, and explored the role of how teachers' certifications and obtaining advanced degrees …

Improving K-Nn Search And Subspace Clustering Based On Local Intrinsic Dimensionality, Arwa M. Wali

Dissertations

In several novel applications such as multimedia and recommender systems, data is often represented as object feature vectors in high-dimensional spaces. The high-dimensional data is always a challenge for state-of-the-art algorithms, because of the so-called "curse of dimensionality". As the dimensionality increases, the discriminative ability of similarity measures diminishes to the point where many data analysis algorithms, such as similarity search and clustering, that depend on them lose their effectiveness. One way to handle this challenge is by selecting the most important features, which is essential for providing compact object representations as well as improving the overall search and clustering …

Applications Of Big Knowledge Summarization, Ling Zheng

Dissertations

Advanced technologies have resulted in the generation of large amounts of data ("Big Data"). The Big Knowledge derived from Big Data could be beyond humans' ability of comprehension, which will limit the effective and innovative use of Big Knowledge repository. Biomedical ontologies, which play important roles in biomedical information systems, constitute one kind of Big Knowledge repository. Biomedical ontologies typically consist of domain knowledge assertions expressed by the semantic connections between tens of thousands of concepts. Without some high-level visual representation of Big Knowledge in biomedical ontologies, humans cannot grasp the "big picture" of those ontologies. Such Big Knowledge orientation …