Digital Commons Network^™

A Process Framework For Managing Quality Of Service In Private Cloud, Arvind Maskara

Walden Dissertations and Doctoral Studies

As information systems leaders tap into the global market of cloud computing-based services, they struggle to maintain consistent application performance due to lack of a process framework for managing quality of service (QoS) in the cloud. Guided by the disruptive innovation theory, the purpose of this case study was to identify a process framework for meeting the QoS requirements of private cloud service users. Private cloud implementation was explored by selecting an organization in California through purposeful sampling. Information was gathered by interviewing 23 information technology (IT) professionals, a mix of frontline engineers, managers, and leaders involved in the implementation …

Patient Safety Culture And High Reliability Organizations, Jared D. Padgett

Walden Dissertations and Doctoral Studies

A 1999 evaluation of case studies performed by staff from the Institute of Medicine found that between 40,000 and 98,000 patients died from preventable errors, while 43,598 individuals died in car accidents that year. A 2011 report increased that estimate nearly 10 times. Widespread preventable patient harm still occurs despite an increase in healthcare regulations. High-reliability organization theory has contributed to improved safety and may potentially reverse this trend. This explorative single case study explored how the perceptions and experiences of nursing and respiratory staff affected the successful transition of a healthcare organization into a reliability-seeking organization. Fourteen participants from …

A Case Study Of Curriculum-Based Organizational Change In An Elementary Teacher Preparation Program, Grace Elizabeth Cook

Walden Dissertations and Doctoral Studies

The implementation of the Common Core State Standards in English/Language Arts and Mathematics into the kindergarten through 12th grade curriculum in the United States presents a unique opportunity for teacher preparation programs to realign their curriculum with the curriculum of the primary and secondary schools. However, it is unknown how teacher preparation programs are approaching this possible change. This qualitative descriptive case study examined the organizational change process that was employed by one teacher preparation program to incorporate the Common Core State Standards for Mathematics (CCSSM) into their curriculum. The change was examined through the organizational development lenses of Kotter …

A Resilient Warrior: Coping Positively With Combat Stress Exposure, William Stallard

Walden Dissertations and Doctoral Studies

The purpose of this study was to explore and examine coping with combat stress exposure in a homogeneous group of 132 U.S. Marines who served in Operations Enduring Freedom or Iraqi Freedom, and who self-reported that they were coping positively. A mixed methods concurrent triangulation strategy was employed with positive psychology as the quantitative theoretical base and Husserlian transcendental phenomenology as the qualitative conceptual framework. Quantitatively, hardiness, hope, social support, personality, and coping strategies were assessed in the participants to examine how these variables may moderate or mediate the relationship between combat stress exposure and subjective well-being. Five hypotheses were …

Factors Associated With Tuberculin Skin Test Positivity Prevalence In U.S. Medical Laboratory Microbiologists, Julie Ann West

Walden Dissertations and Doctoral Studies

Prior research has indicated that healthcare personnel (HCP) who work in areas where Mycobacterium tuberculosis poses an occupational hazard are at high risk of tuberculin skin test (TST) positivity and subsequent conversion to active tuberculosis (TB). U.S. medical laboratory microbiologists confront similar hazards but have not been studied outside of the HCP aggregate. The purpose of this study was to fill this gap by examining the relationships between the predictor variables of self-reported history of bacille Calmette-Guerin (BCG) immunization, place of birth, and years of laboratory experience and the outcomes of self-reported lifetime TST positivity, preventive treatment noninitiation, and barriers …

Drug Use And Sexual Risk Behaviors Of Msm With Syphilis In Atlanta, Tarneisha Shantelle Means

Walden Dissertations and Doctoral Studies

Many men who have sex with men (MSM) engage in alcohol and drug use. Drug use, particularly methamphetamines, amyl nitrates (poppers), and drugs used to treat erectile dysfunction among MSM may also contribute to risks such as unprotected sex, which leads to the possibility of contracting syphilis, Human immunodeficiency virus (HIV), and other Sexually Transmitted Infections (STIs). In the Metro Atlanta Area (Fulton and Dekalb Counties), primary and secondary syphilis rates among MSM are still rising and rank highest among the other counties in the area. Guided by the risk and protective factor theory, the purpose of this study was …

Teacher Assessments Of Positive Behavior Support In School, Terrie Davis Phillips

Walden Dissertations and Doctoral Studies

Students are often removed from classrooms due to behavioral concerns, which has led to an increase in student drop-out rates. Positive behavior support (PBS), a proactive approach to student discipline, was implemented at a local school in order to address the influx of students being sent to the office. Constructivism was the framework for this mixed method study on teachers' assessments of the current behavior support approach in their school and teachers' perceptions of school-wide PBS training and implementation. Data from the Effective Behavior Support (EBS) Survey were used in a descriptive statistical analysis of 162 teachers' assessments of behavior …

Effects Of Learning Communities On Community College Students' Success: A Meta-Analysis, Keith Allen Wurtz

Walden Dissertations and Doctoral Studies

Low graduation rates are a significant issue for colleges. The majority of higher education institutions in the United States offer learning communities (LCs), which have been found to be effective for improving course success and persisting to the next semester. However, there is a gap in the literature regarding the effectiveness of LCs with different types of populations and different types of LCs. The purpose of this meta-analysis was to identify the most effective types of LCs. Research questions addressed the effects of different types of LCs on different student success outcomes for community colleges. The study was based on …

Work Group Composition Effects On Leadership Styles In Aircraft Manufacturing Organizations., Monica Lynn Dunnagan

Walden Dissertations and Doctoral Studies

leadership styles

homogeneous versus heterogeneous

manufacturing leaders

contractor workforce

The Evaluation Of An Environmental Leadership And Service Program's Effectiveness, Roberta Harlow Mcfarland

Walden Dissertations and Doctoral Studies

According to a recent report from the National Center for Educational Statistics, approximately 20% of the United States' high-school aged population is at risk of dropping out of high school, an outcome that strongly limits participation in economic and educational opportunities. The importance of earning a high school diploma has increased many local districts' efforts to close graduation gaps across the student population. Accordingly, this study evaluated a recuperative environmental leadership and service (EL&S) program in a northwestern local district to ascertain its effectiveness in providing at-risk students the personal and academic support required for high school graduation. Following the …

A Professional Development Approach To Improve Practice At An Upstate Community College, Lisa K. Antalek

Walden Dissertations and Doctoral Studies

A federal Call to Action was mandated to reform community colleges across the nation, challenging college officials to enhance instructional methodology on college campuses towards increasing student completion rates. In addressing this mandate, college officials at the upstate NY community college identified a need for professional development that would increase student learning and enhance the instructional methodologies of facilitating faculty through improved alignment. Accordingly, this study investigated the alignment of faculty instructional effectiveness with the institution's core mission. The purpose of this study was to examine faculty perceptions of the instructional methodologies used to facilitate student learning. Informed by Knowles's …

Teacher Beliefs On Personal Learning, Collaboration, And Participation In Virtual Communities Of Practice, Rose Arnell

Walden Dissertations and Doctoral Studies

Virtual communities of practice have been used to improve teachers' instructional practice; yet, many of these communities do not take into account the effect of teachers' personal learning and collegial collaboration beliefs on engagement within this model. The purpose of this qualitative case study was to examine if teaching was enhanced through participation in virtual communities of practice and determine if teachers' personal beliefs prior to entering these communities influenced their engagement. Wenger's social learning theory served as the conceptual framework. The research questions asked how teachers' beliefs on personal learning and their beliefs on collaboration influenced their engagement in …

The Effects Of Holistic Coping Strategies On Perceived Stress And Absenteeism In Hospital Nurses, Mary Alice Ayon

Walden Dissertations and Doctoral Studies

The demanding work environments of professional nurses often contribute to high levels of stress that impact their professional practice and well-being. Although there is a significant amount of research regarding stress and absenteeism, a gap in the literature exists about the effects of holistic coping strategies on nurses' perceived stress and absenteeism. Based on the biopsychosocial model, the purpose of this quantitative study was to investigate effects of holistic coping strategies on perceived stress and absenteeism in 128 hospital nurses. An online cross-sectional survey design used the Perceived Stress Scale-10 to measure nurses' perceptions of stress. The independent grouping variable …

Adolescent And Community Adult Perceptions Of Adolescent Tobacco Use, Susan M. Franko

Walden Dissertations and Doctoral Studies

In 1964, the Surgeon General issued the first report that linked smoking cigarettes as a direct cause of emphysema, heart disease, and lung cancer. Despite this landmark publication, the primary cause of preventable deaths each year in the United States continues to be related to the use of tobacco. Regardless of decades of health education and resources available to inform society that the use of tobacco products can have deleterious effects on health, adolescents continue to experiment with them. The purpose of this study was to gain a better understanding of the influences of adolescent tobacco use. Based on the …

Teachers' Perceptions Of Becoming A Professional Learning Community, Kathleen Theresa Kohl

Walden Dissertations and Doctoral Studies

Professional learning communities (PLCs) have become popular in schools to help improve student achievement. One local middle school implemented a PLC community, yet experienced problems with sustaining the concept and moving forward. The purpose of this quantitative study was to examine the current state of the PLC at the middle school under study, how it functioned, and possible areas for improvement. The theoretical framework revolved around constructivist learning and the dimensions of a quality PLC: collaboration, shared mission, values, vision, and goals. Research questions addressed teachers' perceptions of PLC progress and differences in levels of development scores among the 5 …

The Innovation Of Simulation Laboratories And The Novice Nurses In The Clinical Setting, Brenda Washington Moore

Walden Dissertations and Doctoral Studies

The push to generate professional nurses has raised questions about the competency level of the novice nurses that are entering the workforce. Utilization of simulation laboratories is being viewed as an option for bridging the gap for the shortage of nurses, nurse educators, and clinical sites. The theory of goal attainment was used to guide this project, which aimed to develop and validate an ER simulation scenario that mimics a clinical setting as a tool for measuring nursing skills. An additional purpose, to be accomplished after graduation, will be to implement a pilot project to determine the impact of the …

Effectiveness Of Technology-Integrated Instruction On High School Students' Mathematic Achievement Scores, Michele Lee Ramsay

Walden Dissertations and Doctoral Studies

In an effort to improve mathematics retention and increase assessment scores, the public school district under study implemented Study Island into their Grade 9 algebra program. Study Island is a commercialized web-based program, customized to specific state standards and applied as a supplemental instructional tool. The purpose of this study was to determine the effectiveness of Study Island with general education students and to determine whether the effectiveness of replacing some traditional mathematic instruction with technology was beneficial. The theoretical foundation stemmed from Bloom's work on mastery learning, which holds that children can learn if given the proper environment and …

Owner-Manager Separation And The Structure Of It Governance In Small Business, Jeffrey S. Saffer

Walden Dissertations and Doctoral Studies

Small business owners and small business managers tend to favor different information technology (IT) governance structures. Such differences can lead to ineffective management and control of IT in small businesses. The purpose of this correlational study was to examine the extent and nature of the association between owner-manager separation in small businesses and the structure of IT governance in the businesses. Agency theory formed the theoretical framework of this study. Data were collected using a web-based survey and randomly sampled 3,697 small business owners and managers located in New Jersey and Pennsylvania. Chi-square statistics indicated no significant association between owner-manager …

Predictors Of Hiv Testing Among Individuals Diagnosed With Bipolar Disorder, Marie Denise Decoline

Walden Dissertations and Doctoral Studies

Research on rates of HIV testing among individuals diagnosed with Bipolar Disorder (BPD) is limited, while HIV infection continues to rise among BPD individuals. The problem is that BPD individuals are at high risk for HIV infection due to non-adherence to treatment for bipolar disorder and manic episodes that can lead to high-risk behaviors. The goal of the study was to examine the association between selected demographic variables, having a bipolar diagnosis, engaging in high-risk behaviors, inability to afford treatment for bipolar disorder, non-adherence to treatment for bipolar disorder, and substance abuse, and their relationship to obtaining an HIV test …

Decreasing Central Line Complications With A Dedicated Team Approach, Donna Degennaro

Walden Dissertations and Doctoral Studies

Central-line catheters save lives, but they can also bring about complications, such as hospital-acquired infections. The Institute of Healthcare Improvement has collected data indicating that using proper insertion techniques and maintenance care, known as "the bundle," can prevent bloodstream infections associated with central lines. Progress has been made toward that end: The bundle has been used in intensive care units in a variety of hospitals and reportable central-line infections have decreased by 38%. However, because infections continue to occur inside and outside intensive care units, more needs to be done to protect all patients from these deadly infections. The purpose …

The General Abilities Index As A Third Method Of Diagnosing Specific Learning Disabilities, Kristin M. Sims-Cutler

Walden Dissertations and Doctoral Studies

Many studies have investigated problems with the ability achievement discrepancy (AAD) method of diagnosing specific learning disabilities (SLDs). The definition of an SLD includes the presence of a deficit in one or more cognitive processing systems. Researchers in other studies found that the AAD method overdiagnoses English language learners and students from low socioeconomic backgrounds, and underdiagnoses students with cognitive processing deficits. Although SLD diagnostic methods have been widely researched, much less information is available regarding SLD diagnostic methods that predict important student outcomes, such as high school completion. The General Abilities Index (GAI) is an SLD diagnostic method that …

Talent Retention In Organizations Facing Staff Reductions Via Layoffs, George Edward Lightfoot

Walden Dissertations and Doctoral Studies

High voluntary attrition threatens the future of downsizing organizations. The purpose of this phenomenological study was to explore how employee layoff announcements reduces the perception of organizational commitment to experienced, skilled workers in central Wisconsin. The conceptual framework integrated stress response theories including Cannon's cognitive activation theory of stress. Face-to-face interviews were conducted with 20 journeyman level artisans who had witnessed the layoff process within 50 miles of Wausau Wisconsin. These interviews were analyzed via the modified van Kaam method to code, cluster, and group the findings into significant themes. Nine themes emerged from the analyses suggesting layoff implementation strategies …

Healthy Work Environment Orientation Training And Psychiatric Nurse Retention, Lawanda Rollins

Walden Dissertations and Doctoral Studies

According to recent research, more than 75% of newly employed nurses leave employment within 6 months. Changes in organizational training programs are needed in order to improve psychiatric nurse retention, nationally and globally. A healthy work environment (HWE) has been described as an environment that includes mentoring for good communication skills; it is also one that explores collaborative strategies for safe practice; professional advancement; and empowerment through research, education, and skill development. Examination of the impact of this HWE psychiatric nurse orientation training program on nurse retention was done using Rogers' theory of diffusion. Study variables included the length of …

A Predictive Model For Dementia Risk In Elderly Adults With Prediabetes, Susan Elizabeth Alford

Walden Dissertations and Doctoral Studies

Dementia is a serious public health concern in the United States, with a prevalence of 5.2 million. There is currently no effective way to prevent or cure dementia, and the precise etiology is unknown, but it appears there are multiple risk factors. Prediabetes (PD) has been identified as a risk factor although the scientific evidence is conflicting. This study is important to those at high risk for dementia and to healthcare professionals who lack substantiated dementia prevention strategies. The purpose of this case control study was to determine whether PD is associated with dementia in adults aged 65-95 years and …

Sustainable Revenue Generation System For Nonprofit Institutions Of Higher Education, Graig Arcuri

Walden Dissertations and Doctoral Studies

Social and individual spending on higher education has outpaced social and individual economic growth, resulting in nonprofit institutions of higher education (NIHEs) growing increasingly dependent upon unsustainable governmental subsidies and tuition increases. The purpose of this study was to examine the interactions among components of the nonprofit university system, existing revenue generation methods, and sustainability of revenue generation, thereby generating a new sustainable revenue theory for nonprofit universities within the United States. This qualitative grounded theory study used a multiphase design incorporating data from the literature review, historical documents, and phone interviews from a theoretical sampling of 10 NIHEs. Participants …

Perspectives Of Parents Of Students With Disabilities Toward Public And Homeschool Learning Environments, Angie Marie Delaney

Walden Dissertations and Doctoral Studies

Homeschool delivery to students is on the rise, particularly in regards to the education of students with disabilities. At this time, there is a lack of research on homeschooled students with disabilities. The purpose of this phenomenological study was to explore how parents choose a model of education for their children with disabilities. A purposeful sample of 3 distinct groups comprising 13 parents of children with disabilities was assembled: (a) parents who are homeschooling their child with a disability, (b) parents who have decided to enroll their child in the public school system after previously homeschooling, and (c) parents who …

Middle School Teachers' Experiences Regarding The Influence Of Data On Instruction, Anne Marie Gwizdak

Walden Dissertations and Doctoral Studies

This research addressed the data-driven process that teachers utilized to increase student scores on state tests, a process brought forth from a national concern with increased accountability. According to the district website, there is no consistent direction for data use and informal teacher interviews demonstrated varying levels of proficiency and understanding in using available data. Constructivism and learning styles from Vygotsky, Bandura, and Gardner informed this qualitative case study's theoretical framework, which centered on data-driven decision making for instruction. The research questions explored the experiences of middle school teachers in collecting and analyzing data, how the school supported the teachers' …

The Relationship Between Family, Personal, And School Variables And The Math Achievement Of Elementary Students, Regina Wicker Kerr

Walden Dissertations and Doctoral Studies

School administrators and teachers must determine the factors most associated with academic success in order to meet the academic needs of all students. Researchers have identified general risk factors such as student socioeconomic status (SES), but there may be additional unidentified factors correlated to student achievement. The purpose of this study was to explore the relationship between a set of school, family, and personal demographic variables and students' math achievement. Bandura's social learning theory, Vygotsky's zone of proximal development, and Feurestein's mediated learning experience served as the guiding frameworks for this study. A descriptive correlational design was used to examine …

Impact Of Federal Acquisition Regulation Change On Contractor Misconduct, Jeffery Orazio Patrignani

Walden Dissertations and Doctoral Studies

The Project on Government Oversight listed 632 reported acts of government contractor misconduct since 2007 that resulted in settlements or fines totaling $41.95 billion in the government contracting industry. Government contracting officials changed the Federal Acquisition Regulation (FAR) in 2009 to reduce acts of misconduct. The purpose of this causal-comparative study was to discover if the change to the FAR in 2009 significantly reduced the rate of reported contractor misconduct and to investigate the impact of the change on government contractor ethics business processes. Deterrence theory guided this study of how the change to the FAR in 2009 impacted the …

Financial Resources And Technology To Transition To 450mm Semiconductor Wafer Foundries, Thomas Earl Pastore

Walden Dissertations and Doctoral Studies

Future 450mm semiconductor wafer foundries are expected to produce billions of low cost, leading-edge processors, memories, and wireless sensors for Internet of Everything applications in smart cities, smart grids, and smart infrastructures. The problem has been a lack of wise investment decision making using traditional semiconductor industry models. The purpose of this study was to design decision-making models to conserve financial resources from conception to commercialization using real options to optimize production capacity, to defer an investment, and to abandon the project. The study consisted of 4 research questions that compared net present value from real option closed-form equations and …