Digital Commons Network^™

Improving Bespoke Software Quality: Strategies For Application And Enterprise Architects, Daniel Scott Wagner

Walden Dissertations and Doctoral Studies

Despite over 50 years of software engineering as a formal practice, contemporary developers of bespoke software follow development practices that result in low-quality products with high development and maintenance costs. This qualitative case study sought to identify strategies used by software and enterprise architects for applying architectural best practices to improve bespoke software quality and lower the total cost of ownership. The study population was application and enterprise architects associated with delivering bespoke software for the enterprise architecture team at a large enterprise in the Nashville, Tennessee metropolitan area. Interview data were collected from 7 enterprise or solution architects; in …

Educating Instructional Mentors: A Qualitative Case Study Of Instructional Coaches, Nikkita Davenport Warfield

Walden Dissertations and Doctoral Studies

In a rural Title I school district in Georgia, teachers are mandated to implement research-based best practices in their delivery of instructional standards so that K-12 students can master 21st century competencies and meet mandated academic targets. District administrators indicated many teachers lack skills to implement best practices. To address this concern, instructional coaches were hired to support teachers with implementation of instructional practices and address teacher accountability; however, coaches received no training to outline their roles and responsibilities. The purpose of this bounded qualitative single case study was to examine the role of instructional coaches and how they support …

Relationship Between Student Characteristics And Attrition Among Associate Degree Nursing Students, Wendy Elizabeth Watson

Walden Dissertations and Doctoral Studies

High nursing student attrition has been a pervasive problem in the nursing program at the research site of this study. The purpose of this project study was to investigate the relationship between attrition and nursing student characteristics, including age, gender, ethnicity, English as Second Language (ESL) background, licensed practical nurse (LPN) licensure, grade point average (GPA), the number of preadmission college credits, and the Test of Essential Academic Skills (TEAS) scores. This correlational study of archival data was guided by Jeffreys's nursing undergraduate retention and success model and included a convenience sample of 240 students admitted to the program between …

Relationships Between Early Academic Indicators And Accelerated-Baccalaureate Student Nurse Success, Bonnie J. White

Walden Dissertations and Doctoral Studies

In 2013, the National Council Licensure Examination for Registered Nurses' (NCLEX-RN) passing standard was increased, leading to a decrease in NCLEX-RN pass rates. The passing standard increase was prompted by an advisory panel's determination that a gap in safe, competent practice existed among new graduate nurses. New graduates' success on NCLEX-RN is critical to meet workplace demand for new nurses. The purpose of this study was to examine whether cumulative grade point average at completion of 200-level nursing courses and scores on the standardized final exam in the 200-level fundamentals course were related to on-time nursing program completion and a …

Overcoming The Challenges Of Retaining Novice Teachers In A County Public School By Ernst Albert, Ernst Albert

Walden Dissertations and Doctoral Studies

Retaining novice teachers in a Northeast Florida county public school is an ongoing challenge. Research indicates that 14% of new teachers will leave the field within 5 years. The purpose of this case study was to investigate the major factors that contributed to this unique group of novice teachers' decisions to continue to teach at the school during their first 5 years in the field. The societal model served as the conceptual framework for this study of factors affecting teacher turnover, with emphasis on teacher and school characteristics in relation to teacher attrition. Data collected from 9 interviews and an …

Leadership Strategies For Maintaining Profitability In A Volatile Crude Oil Market, Lucky Anderson Braimoh

Walden Dissertations and Doctoral Studies

Volatile crude oil prices significantly affect the profitability of crude oil firms. The purpose of this single case study was to explore strategies some crude oil and gas business leaders used to remain profitable during periods of crude oil price volatility. The target population comprised 8 crude oil and gas business leaders located in Calgary, Canada, whose company remained profitable despite crude oil price volatility. The transformational leadership theory formed the conceptual framework for the study. Data were collected through the use of semistructured face-to-face interviews, company reports, and field notes. Data analysis involved a modified Van Kamm method, which …

Relationship Between Corporate Governance And Information Security Governance Effectiveness In United States Corporations, Robert Elliot Davis

Walden Dissertations and Doctoral Studies

Cyber attackers targeting large corporations achieved a high perimeter penetration success rate during 2013, resulting in many corporations incurring financial losses. Corporate information technology leaders have a fiduciary responsibility to implement information security domain processes that effectually address the challenges for preventing and deterring information security breaches. Grounded in corporate governance theory, the purpose of this correlational study was to examine the relationship between strategic alignment, resource management, risk management, value delivery, performance measurement implementations, and information security governance (ISG) effectiveness in United States-based corporations. Surveys were used to collect data from 95 strategic and tactical leaders of the 500 …

Relationship Between Admission Criteria And Program Completion In A Radiation Therapy Program, Adrienne Mae Dougherty

Walden Dissertations and Doctoral Studies

Poor completion rates in the radiation therapy associate's degree program offered through a community college did not meet the standards set by the college and damaged the program's reputation. The relationship between admission criteria and program completion was not known. The purpose of this study was to determine if there were any relationships between the admission criteria (GPA in prerequisite courses, interview scores, writing sample scores, and preadmission testing scores) and students' completion of a radiation therapy associate's degree program. This correlational study used 2 stages of Tinto's retention theory: (a) recruitment and admission to college and (b) pre-entry assessment …

Best Practices For Improving The Writing Of 3rd And 4th Grade Students, Parastou Afshar Eftekhari

Walden Dissertations and Doctoral Studies

Scores on a state comprehensive assessment test showed that writing skills of 4th grade students enrolled in a K-8 magnet school in the southeastern part of the United States were below target. The assistant principal of the K-8 magnet school explained that a review of 3-year longitudinal data revealed that the number of students who met proficiency for the 4th grade writing assessment decreased by 1% each year. The purpose of this case study was to gain an understanding from teachers about the best practices on how to improve students' writing skills. Denzin and Lincoln's constructivist theoretical concepts of accommodation …

Effects Of A One-To-One Ipad Initiative Program On 11th Grade Standardized Test Scores, Brendan James Howard

Walden Dissertations and Doctoral Studies

The iPad and other mobile devices have become so popular over the past few years that many school districts are purchasing these devices and implementing them in the classroom with little to no research. Because there has been no previous research at one rural school district in Michigan, the primary purpose of this quantitative causal-comparative study was to investigate the effects that a 1-to-1 iPad initiative program has had on only 11th grade student achievement and determine if 11th grade students' test scores on the Michigan Merit Exam in the areas of mathematics, science, and social studies for each school …

Factors Affecting Student Loan Default In Proprietary Non-Degree Granting Colleges, Samuel Hanson Kelley

Walden Dissertations and Doctoral Studies

The significant problem addressed in this research was the increasing default rate among federal student loan borrowers who attended non-degree-granting proprietary colleges in Florida (i.e., career and technical colleges). The purpose of this study was to identify, better understand, and predict which borrower characteristics increased the likelihood of student loan default at proprietary non-degree-granting colleges. The research was based on the structural-functional and planned behavior theories and utilized a quantitative, non-experimental, cross-sectional design to explore the relationship between academic success, age, college graduation status, ethnicity, gender, high school class ranking, and federal student loan default. Self-reported data were obtained from …

Elementary Teacher Knowledge Of And Practices For Teaching Reading To African American Students, Camille Jacqueline Little

Walden Dissertations and Doctoral Studies

State standardized tests results indicated that between 2012 and 2016, fewer African American students at a rural, Title I elementary school met state standards in reading compared with other racial/ethnic groups of students. A gap in practice existed because the school and district had not conducted studies to understand teacher knowledge and practice as they related to teaching reading to African American students. The purpose of this qualitative case study was to address the problem and gap in practice by exploring elementary teacher knowledge and understanding of the learning needs in reading among African American students. Tomlinson's theory of differentiated …

Evaluation Of Math Block-Scheduling For Low Performing At-Risk And Economically- Disadvantaged Students, Toni Trice

Walden Dissertations and Doctoral Studies

Research shows a math achievement gap for at-risk and economically-disadvantaged students in the United States. To address this issue, a Texas school district implemented a 90-minute math block-scheduling program with 8th grade students. Shaped by the academic learning time and social justice theories, the purpose of this quantitative program evaluation was to determine if students in 3 key subgroups (low performing, low performing and at-risk, and low performing and economically-disadvantaged) who participated on the 90-minute block-schedule performed significantly better on the math state standardized assessment than did students in the same subgroups who remained on the traditional schedule. This retrospective …

The Role Of Leadership In Changing The Culture Of An International School To Be Inclusive Of Students With Special, Simon Norman Gillespie

Walden Dissertations and Doctoral Studies

Educating a diverse student population is a core principle of international school education. Historically, many international schools have had admissions policies that excluded students with special learning needs. However, admission policies have changed to require more inclusiveness and school support for a wider range of students and for effectively meeting their needs. The study was based on change theory. Of interest was how school leaders best supported the change process to create the conditions for success in the context of changing admissions policies. Research questions targeted strategies that supported change and student success that were used to change the culture …

On Comparative Algorithmic Pathfinding In Complex Networks For Resource-Constrained Software Agents, Michael Moran

Walden Dissertations and Doctoral Studies

Software engineering projects that utilize inappropriate pathfinding algorithms carry a

significant risk of poor runtime performance for customers. Using social network theory,

this experimental study examined the impact of algorithms, frameworks, and map

complexity on elapsed time and computer memory consumption. The 1,800 2D map

samples utilized were computer random generated and data were collected and processed

using Python language scripts. Memory consumption and elapsed time results for each of

the 12 experimental treatment groups were compared using factorial MANOVA to

determine the impact of the 3 independent variables on elapsed time and computer

memory consumption. The MANOVA indicated a …

Strategies To Minimize The Effects Of Information Security Threats On Business Performance, Stella Ifeyinwa Okoye

Walden Dissertations and Doctoral Studies

Business leaders in Nigeria are concerned about the high rates of business failure and economic loss from security incidents and may not understand strategies for reducing the effects of information security threats on business performance. Guided by general systems theory and transformational leadership theory, the focus of this exploratory multiple case study was to explore the strategies small and medium-sized enterprise (SME) leaders use to minimize the effects of information security threats on business performance. Semistructured interviews were conducted with 5 SME leaders who worked in SME firms that support oil and gas industry sector in Port Harcourt, Nigeria, had …

Strategies For Improved Earned Value Management Use By Defense Business Leaders, Kevin Robert Rhodes

Walden Dissertations and Doctoral Studies

Project cost and schedule forecasting accuracy in the defense industry has not significantly changed since the 1960s, making it difficult for defense business leaders to implement successful earned value management (EVM) strategies. The purpose of this multiple case study was to explore EVM strategies that Washington, D.C. area defense contractor business leaders used to improve costs and schedule goal accomplishment. The conceptual framework for this study was the earned time theory. Data were collected from semistructured interviews from 5 defense contractor business leaders with demonstrated use of EVM strategy. The review of company documents focused on EVM use with reporting …

Strategies For Addressing Workplace Incivility And Retention In A Healthcare System, Keonda Schenck Schenck

Walden Dissertations and Doctoral Studies

Workplace incivility is increasing in prevalence in healthcare organizations. Despite the adverse effects of workplace incivility on employee engagement and voluntary employee turnover, some organizations do not have policies to address workplace incivility among employees. The purpose of this descriptive, single case study was to explore successful strategies leaders at healthcare organizations with 50 or more employees used to reduce workplace incivility and improve employee retention. The spiral theory provided the conceptual framework for the study. Semistructured interviews were held with 2 human resources (HR) professionals and 1 department manager with experience dealing with employee relations and success in retaining …

The Trilogy Of Science: Filling The Knowledge Management Gap With Knowledge Science And Theory, Anthony Shawn Bates

Walden Dissertations and Doctoral Studies

The international knowledge management field has different ways of investigating, developing, believing, and studying knowledge management. Knowledge management (KM) is distinguished deductively by know-how, and its intangible nature establishes different approaches to KM concepts, practices, and developments. Exploratory research and theoretical principles have formed functional intelligences from 1896 to 2013, leading to a knowledge management knowledge science (KMKS) concept that derived a grounded theory of knowledge activity (KAT). This study addressed the impact of knowledge production problems on KM practice. The purpose of this qualitative meta-analysis study was to fit KM practice within the framework of knowledge science (KS) study. …

Visually Impaired Individuals' Perspectives On Obtaining And Maintaining Employment, Nadine Donaldson

Walden Dissertations and Doctoral Studies

The employment rate among people with visual impairment is very low compared to sighted individuals. Negative attitudes, stereotypes, and misconceptions are held against people with visual impairment by employers, family members, and the general public. The purpose of this transcendental phenomenological study was to explore the lived experiences of 10 people with visual impairment regarding challenges in obtaining and maintaining employment. A transcendental phenomenological conceptual framework was used to guide the study. Data from semistructured interviews were coded and categorized to identify themes. Results revealed 5 essential themes, which showed to be barriers to employment. The themes are: travel difficulties, …

Nursing Informatics Competency Program, Kristina Ann Dunn

Walden Dissertations and Doctoral Studies

Currently, C Hospital lacks a standardized nursing informatics competency program to validate nurses' skills and knowledge in using electronic medical records (EMRs). At the study locale, the organization is about to embark on the implementation of a new, more comprehensive EMR system. All departments will be required to use the new EMR, unlike the current policy that allows some areas to still document on paper. The Institute of Medicine, National League of Nursing, and American Association of Colleges of Nursing support and recommend that information technology be an essential core competency for nurses. Evidence of the need for nursing informatic …

Examining Adolescent Student Photography And Related Processes To Inform Day Treatment School Curricula And Behavioral Interventions, Jason Edward Gorbel

Walden Dissertations and Doctoral Studies

Adolescent students with psychiatric disorders who are educated in day treatment school classrooms manifest cognitive limitations, maladaptive behaviors, and social functioning deficits that often lead to academic failure, impeding their productivity when they become adults and causing them to run afoul of the criminal justice system. Informed by their students' interests and perspectives, day treatment schoolteachers can individualize existing curricular and behavioral interventions, or develop alternatives so that unwanted classroom behaviors decrease and academic performance improves. This qualitative case study used Roland Barthes' (1981, 1985) theory of semiotics as a conceptual framework for answering how an analysis of photographs taken …

The Relationship Between Teacher Autonomy And Middle School Students' Achievement In Science, Norris Jerard Gurganious

Walden Dissertations and Doctoral Studies

The pressure to have students perform well on standardized tests can serve as a stressor to some teachers in their efforts to autonomously teach their students, particularly those of low socioeconomic status (SES). However, the relationship between teachers' sense of autonomy, teachers' attitudes and behaviors, SES, and student's academic success remains unclear. The purpose of this quantitative study was to examine the relationship between teachers' autonomy to make decisions about classroom teaching practices and specific science curricula, school-wide student achievement in science, and students' SES. Freire's empowerment theory served as the theoretical framework. The research questions investigated the extent that …

The Impact Of Stereotype Threat On The Social Self-Efficacy And Academic Performance Of Mexican Immigrants, Jessica Holmes

Walden Dissertations and Doctoral Studies

Mexican immigrants living in the United States face academic challenges as well as being exposed to stereotypes. Additionally, Mexican immigrants tend to report lower self-efficacy compared to their American counterparts. This quantitative study aimed to fill a gap in the literature by examining the impact that stereotype threat (STT) has on Mexican immigrants' academic performance and social self-efficacy using a two-way between subjects design. Self-efficacy theory and stereotype threat theory provided the theoretical foundation for the study. Caucasian and Mexican immigrants were randomly assigned to one of two groups- a group exposed to STT (Caucasian n = 94, Mexican immigrant …

Science Content Knowledge: A Component Of Teacher Effectiveness In A Primary School In Jamaica, Euphemia Sophia Robinson

Walden Dissertations and Doctoral Studies

Empirical evidence from the National Education Inspectorate suggested that teachers at the primary school in this study in an island country in the Caribbean have inadequate science content knowledge. Students' average performance on the science Grade Six Achievement Test (GSAT) has been below 40% for the last 5 years. The purpose of this bounded case study, guided by Shulman's conceptual framework, was to understand teachers' science subject matter knowledge (SMK). The guiding questions focused on teachers' abilities to demonstrate components of Shulman's SMK during science teaching and lesson planning and to gather their views on their abilities to meet the …

Scheduling Strategies For Construction Project Managers Toward On Time Delivery, Paul Shamp

Walden Dissertations and Doctoral Studies

Construction management projects involve complex, dynamic environments resulting in uncertainty and risk, compounded by demanding time constraints. Research indicated project managers have struggled to identify best practices for scheduling construction projects via critical path methodologies while searching for tools to increase timely job completions and budget profits. The purpose of this single case study was to explore the strategies that construction project managers used to manage scheduled construction project delivery on time. The constructivist philosophical worldview was used as the framework for this study. Data were collected from semistructured interviews from 7 project managers from 5 different construction companies selected …

The Relationship Between Sustainable Supply Chain Management, Stakeholder Pressure, And Financial Performance, Zulfiya Tchaikovsky

Walden Dissertations and Doctoral Studies

Corporate sustainability confronts significant challenges when supply chain managers pursue short-term financial performance to meet stakeholders' expectations. To achieve sustainable economic success, organizational managers need to understand the relationship between corporate sustainability and long-term financial performance. Based on the resource dependence theory, the purpose of this correlational study was to examine the relationship between sustainable supply chain management (SCM), stakeholder pressure, and corporate sustainability performance. The population consisted of worldwide public organizations from Newsweek Global Green Ranking 2016 list engaged in sustainable SCM. The secondary data for the study were collected from databases hosted by Sustainalytics and Standard & Poor's. …

Pathways For Improving Nigeria's Procurement System, Donald Osebhawe Areguamen

Walden Dissertations and Doctoral Studies

The manual procurement processes used by some private companies result in increased costs and contract fulfillment delays. The focus of this multiple case study was to explore the strategies procurement managers use to reduce costs and contract fulfillment delays. The population for this study was three procurement managers of private plastics companies located at Maitama, in Abuja, Nigeria. Weiss's theory of change was the conceptual framework for this study. Data collection included semistructured face-to-face interviews and an exploration of company archival financial documents. Data were transcribed, coded, and then validated through member checking, resulting in the emergence of 5 themes: …

The Relationship Between Self-Efficacy And Advanced Stem Coursework In Female Secondary Students, Bethany Marie Bernasconi

Walden Dissertations and Doctoral Studies

Despite years of attention, gender inequity persists in science, technology, engineering, and mathematics (STEM). Female STEM faculty, positive social interactions, and enrollment in advanced STEM secondary coursework are supportive factors in promoting female students' persistence in STEM fields. To address the gap in understanding these factors, this study employed a sequential mixed method design using a framework of social cognitive theory. Research questions focused on how levels of self-efficacy and perception of personal and social factors among female secondary students related to their enrollment in advanced STEM coursework and extracurricular activities in a rural New England school where gender parity …

Work Motivation Theory: Identifying Multi-Generational Values In The Workplace, Rhonda Rochelle Brown-Crowder

Walden Dissertations and Doctoral Studies

The workforce is diverse on gender, race, ethnicity, culture, work styles, and age. Employees from different generations have varying expectations of what they value from the workplace and therefore approach work differently. Generational differences can lead to mistrust and communication breakdowns. They can also impact job satisfaction and productivity. The Generational Cohort Theory was utilized in this nonexperimental study, and the sample was recruited from CB Richard Ellis Real Estate Group. The purpose of this study was to determine the work values differences among the 4 generational cohorts: Silent, Baby Boomers, Generation X and Millennials. The research questions for this …