Physical Sciences and Mathematics Commons^™

Customer And Employee Social Media Comments/Feedback And Stock Purchasing Decisions Enhanced By Sentiment Analysis, Drew Mikel Hall

Walden Dissertations and Doctoral Studies

The U.S. Securities and Exchange Commission (SEC) warns professional investors that sentiment analysis tools may lead to impulsive investment decision-making. This warning comes despite evidence showing that aided social sentiment investment decision tools can increase accurate investment decision-making by 18%. Using Fama's theory of efficient market hypothesis, the purpose of this quantitative correlational study was to examine whether customer Twitter comments and employee Glassdoor feedback sentiment predicted successful investing decisions measured by business stock prices. Two thousand records from 3 archival U.S. public NASDAQ 100 datasets from March 28, 2016, to June 15, 2016 (79 days) of 53 companies with …

General Chemistry Students' Perceived Self-Efficacy After Completing Project-Based Service-Learning Activities, Sarah Quast Sliker

Walden Dissertations and Doctoral Studies

A New England community college reported that 60% of General Chemistry college students, who were science, technology, engineering, and mathematics (STEM) majors, did not advance in the STEM curriculum. To potentially increase student persistence in STEM curriculum, this qualitative case study project explored the self-efficacy perceptions of General Chemistry students after participating in project-based service-learning with elementary-school students. Bandura's social cognitive theory provided the conceptual framework for the study, supporting an understanding of learner self-efficacy. Research questions focused on chemistry students perceived self-efficacy after interactions with elementary-school students, teamwork, and the development of a project. Semistructured interviews with 10 participants …

Potential Impacts Of Artificial Intelligence On Spine Imaging Interpretation And Diagnosis, David Howard Durrant

Walden Dissertations and Doctoral Studies

Spine and related disorders represent one of the most common causes of pain and disability in the United States. Imaging represents an important diagnostic procedure in spine care. Imaging studies contain actionable data and insights undetectable through routine visual analysis. Convergent advances in imaging, artificial intelligence (AI), and radiomic methods has revealed the potential of multiscale in vivo interrogation to improve the assessment and monitoring of pathology. AI offers various types of decision support through the analysis of structured and unstructured data. The primary purpose of this qualitative exploratory case study was to identify the potential impacts of AI solutions …

Exploring Strategies For Adapting Traditional Vehicle Design Frameworks To Autonomous Vehicle Design, Alex Munoz

Walden Dissertations and Doctoral Studies

Fully autonomous vehicles are expected to revolutionize transportation, reduce the cost of ownership, contribute to a cleaner environment, and prevent the majority of traffic accidents and related fatalities. Even though promising approaches for achieving full autonomy exist, developers and manufacturers have to overcome a multitude of challenged before these systems could find widespread adoption. This multiple case study explored the strategies some IT hardware and software developers of self-driving cars use to adapt traditional vehicle design frameworks to address consumer and regulatory requirements in autonomous vehicle designs. The population consisted of autonomous driving technology software and hardware developers who are …

Social Connectedness And Financial Independence Strategies Supporting Nonprofit Sustainability, Christopher Edmund Maylor

Walden Dissertations and Doctoral Studies

Leaders of nonprofit organizations (NPOs) often lack strategies to ensure the sustainability of their organizations beyond initial funding, resulting in significant risk to program continuity. Grounded in social entrepreneurship theory, the purpose of this qualitative single-case study was to explore strategies used by 3 leaders of a small NPO in the southwest region of the United States. Data were collected from semistructured interviews and a review of organizational documents. Through thematic analysis, 6 social themes emerged: optimization of business strategies, income and donor growth, program cost management, funding diversification, program licensing, and public awareness of NPO programs. The contributions to …

Use Of Force Citizen Complaints, Use Of Force Violations, And Early Intervention, Drema Ann Hymon

Walden Dissertations and Doctoral Studies

Abstract

Mounting public protests, increasing expensive payouts, and shootings of unarmed victims by police is a call to reexamine options to problem solving, service recovery, and preventing police misconduct as it pertains to the use of force. The purpose of this quantitative study was to examine the correlation between early intervention system data

(a) use of force, citizens' complaints (race and gender), and use of force violations (race, gender, and years of service for officers). The disruptive theoretical framework provided an innovative lens to examine police misconduct of a large midwestern large law enforcement agency. This secondary data study did …

Exploring Strategies For Recruiting And Retaining Diverse Cybersecurity Professionals, Vivian Lyon

Walden Dissertations and Doctoral Studies

The cyber threat landscape has led some cybersecurity leaders to focus on a holistic approach encompassing people, processes, and technology to make their government agencies and organizations more responsive to a more diverse and inclusive cyber workforce to protect critical infrastructure from hackers or cybercriminals intent on causing harm. This qualitative multiple case study used Schein’s organizational culture theory to explore strategies used by cybersecurity leaders to attract, recruit, and retain diverse cybersecurity professionals to effectively and efficiently protect sensitive systems from rising cyber threats. The study's population consisted of cybersecurity leaders from 3 government agencies and 9 organizations in …

Information Systems Strategies For Small And Medium Size Enterprise Sustainability, Oluseyi Solomon Awotayo

Walden Dissertations and Doctoral Studies

Small and medium size business owners who do not use information systems effectively degrade business models, reduce customer value, and diminish the prospects for business stability, profitability, and growth. Grounded in the resource based view framework, the purpose of this qualitative multiple-case study was to explore the information systems strategies small business owners used to sustain their business beyond 5 years. A purposeful sample of 5 owners of 5 different small and medium sized businesses in the state of Texas participated in the study. Data were collected via semistructured, face-to-face interviews, company documents, and member checking. Data were analyzed using …

Exploring Cybersecurity Awareness And Training Strategies To Protect Information Systems And Data, Michael Hanna

Walden Dissertations and Doctoral Studies

Ineffective security education, training, and awareness (SETA) programs contribute to compromises of organizational information systems and data. Inappropriate actions from users due to ineffective SETA programs may result in legal consequences, fines, reputational damage, adverse impacts on national security, and criminal acts. Grounded in social cognitive theory, the purpose of this qualitative multiple case study was to explore strategies hospitality organizational information technology (IT) leaders utilized to implement SETA successfully. The participants were organizational IT leaders from four organizations in Hampton Roads, Virginia. Data collection was performed using telephone and video teleconference interviews with organizational IT leaders (n = 6) …

Predictors Of Colorectal Cancer Screening Among Maryland Adults, Aged 50–75 Years, Pamela Manwi Asangong

Walden Dissertations and Doctoral Studies

Screening plays an essential role in reducing colorectal cancer (CRC) incidence and mortality rates, yet CRC screening use remains low in Maryland and lower in some age and racial/ethnic groups with limited resources to participate in CRC screening programs. The purpose of this quantitative, cross-sectional study is to investigate whether age group, sex, race/ethnicity, education level, income level, health insurance coverage, and access to health care professional can predict an individual, 50–75 years of age, in Maryland to take action to fully meet the United States Preventive Services Task Force CRC screening test recommendation within the recommended time interval. The …

Strategies For Automating Pharmacovigilance Adverse Event Case Processing, Mythily Easwar

Walden Dissertations and Doctoral Studies

Business leaders who fail to implement innovative technology solutions in their companies face economic distress in these organizations. Guided by the task technology fit model as the conceptual framework, the purpose of this qualitative single case study was to explore strategies used by pharmacovigilance (PV) systems leaders to implement innovative technology solutions. The participants were 4 PV systems managers working in a pharmaceutical company in the Boston area of Massachusetts, United States, who used successful strategies to implement innovative technology solutions to automate adverse events case processing. Data were collected using semistructured interviews and company documents. The collected data were …

Information Technology Disaster Recovery Planning By Florida Nonprofit Organizations, Derek Keith Erfourth

Walden Dissertations and Doctoral Studies

Inadequate information technology (IT) disaster recovery planning (DRP) by nonprofit organizations could lead to organizational failure post-large-scale natural disasters. Without proper funding and planning, organizations may not be able to withstand the effects of a natural disaster resulting in the closure and the community losing a critical need service. Grounded in resilience theory, the purpose of this qualitative multiple case study was to explore strategies utilized by Florida-based nonprofit organization technology managers to adopt and implement an IT DRP to aid in post-natural disaster recovery efforts. The data collection included interviews with 5 IT managers and reviews of 4 business …

Implementing Cloud-Based Enterprise Resource Planning Solutions In Small And Medium Enterprises, Ali Hamdar

Walden Dissertations and Doctoral Studies

Lacking strategies to implement a cloud-based enterprise resource planning (ERP) solution in small and medium-sized enterprises (SMEs) can lead to a failed implementation. SME owners can improve company performance by integrating company processes by successfully implementing a cloud-based ERP solution. Grounded in the diffusion of innovation theory augmented with business process management design for Six Sigma, the purpose of this qualitative multiple case study was to explore strategies SME owners use to implement cloud-based ERP solutions. The participants consisted of 4 SME owners in Lebanon who successfully implemented a cloud-based ERP solution and improved company performance and growth. Data were …

Strategies In Software Development Effort Estimation, Kevin R. Roark

Walden Dissertations and Doctoral Studies

Software development effort estimating has notoriously been the Achilles heel of the software planning process. Accurately evaluating the effort required to accomplish a software change continues to be problematic, especially in Agile software development. IT organizations and project managers depend on estimation accuracy for planning software deliveries and cost determination. The purpose of this multiple case qualitative study was to identify strategies used by software development professionals in providing accurate effort estimations to stakeholders. The planning fallacy served as the study’s conceptual framework. The participants were 10 software development professionals who were actively engaged in delivering estimates of effort on …

Water Sustainability Leadership Fostering Stakeholder Engagement, Rosa Elena Bustillos Wong

Walden Dissertations and Doctoral Studies

Water conservation management and water use behaviors of U.S. citizens are critical to secure water for future generations. An American citizen consumes approximately 88 gallons of water per day. On a local scale, a Florida citizen uses 134 gallons per day and wastes 71% of the total municipal drinking water provision in landscape activities. The problem addressed in this study was that administrators working on water conservation programs undergo difficulty fostering stakeholder engagement to advocate a water use behavioral change. The purpose of this qualitative exploratory multiple case study was to understand how citizen water use behaviors influence stakeholder water …

Information Technology Infrastructure Library: Postimplementation Experiences Of Small Business It Support Employees., Imoovberame Darren Obazu

Walden Dissertations and Doctoral Studies

Information technology (IT) employees of small business organizations have been the driving force for the implementation of innovative standardized IT service management and process improvement initiatives. Competitiveness amongst small business IT organizations in the market for quality IT service delivery led small business IT leaders toward the implementation of an information technology infrastructure library (ITIL) as an IT service management framework. The problem addressed in this research encompassed the needs of small business IT leaders and ITIL designers to understand the perceptions of IT operation employees following ITIL implementation. The purpose of this qualitative multiple case study was to explore …

Knowledge Management, Innovations Systems, And Firm Performance, Henry Dion Young

Walden Dissertations and Doctoral Studies

Small and medium sized-enterprise managers are unable to effectively manage employees’ knowledgeability and innovation systems successfully, which results in negative firm performance. Managers who do not consider employee knowledge management and the benefits related to innovation systems experience financial hardships within the organization. Grounded in the unified model of dynamic organizational knowledge creation theory, the purpose of this quantitative correlational study was to examine the relationship between knowledge management, innovation systems, and firm performance. Data were collected using SurveyMonkey to gather online survey responses from 80 small and medium-sized enterprise managers in California. The results of the standard multiple linear …

Factors That Influence Throughput On Cloud-Hosted Mysql Server, Eric Brown

Walden Dissertations and Doctoral Studies

Many businesses are moving their infrastructure to the cloud and may not fully understand the factors that can increase costs. With so many factors available to improve throughput in a database, it can be difficult for a database administrator to know which factors can provide the best efficiency to maintain lower costs. Grounded in Six Sigma theoretical framework, the purpose of this quantitative, quasi-experimental study was to evaluate the relationship between the time of day, the number of concurrent users, InnoDB buffer pool size, InnoDB Input/Output capacity, and MySQL transaction throughput to a MySQL database running on a cloud, virtual, …

A Secure And Strategic Approach To Keep Iot Devices Safe From Malware Attack, Christopher Ray Murray

Walden Dissertations and Doctoral Studies

Through the advances in technology, businesses can now utilize the Internet of Things (IoT) devices to improve workflow and provide better services to customers. However, without a strategy to secure these devices, Information Technology (IT) security professionals are left with vulnerable equipment. Grounded in routine activities theory, the purpose of this qualitative multiple case study was to determine strategies IT security professionals used to protect IoT devices in their environment. The participants were 6 IT professionals from 2 medium to large size healthcare facilities based in the Buffalo, New York, and the Washington D.C. area, who possessed strategies to protect …

Effectively Managing Energy Costs In The Resort Industry, Justin Whitesides

Walden Dissertations and Doctoral Studies

Hawaii's commercial consumers pay the highest electricity rate in the United States;these costs are expected to rise 3-3.5% in 2021. Management in the Hawaiian resort industry that lacks adequate knowledge of controlling these rising costs is at a competitive disadvantage. Utilizing the diffusion of innovation theory, the purpose of this qualitative case study was to explore strategies used in the resort industry to control energy costs. The participants comprised of 10 energy management professionals with successful experience managing energy consumption in the resort industry. Data were collected through telephone interviews, archival documentation, and field notes. Using Yin's 5-step process of …

Borehole Water And Sachet Water Production In Southeast Nigeria, Joseph Emerenini

Walden Dissertations and Doctoral Studies

AbstractDrinking water is potable and safe if it is free from physical, chemical, and microbiological contaminants. Despite the Nigerian government's interventions to alleviate water contamination, a considerable number of Nigerians are still without safe potable water. The purpose of this quantitative cross-sectional study was to examine whether the level of contamination of drinking water sourced from boreholes and sachet packaged water in Owerri City, Southeast Nigeria was in compliance with World Health Organization (WHO) standards, and to examine the relationship between the physical, chemical, and bacteriological parameters of drinking water sourced from borehole and sachet packaged water The conceptual framework …

Relationship Between Risk Identification, Risk Response, And Project Success, Marsha Marinich

Walden Dissertations and Doctoral Studies

AbstractProjects are used to implement the organization's strategic goals, but high failure rates reduce projects' effectiveness in successfully achieving goals. High failure rates reduce project managers’ effectiveness of projects in successfully achieving goals. Senior leaders and project managers are unable to deliver successful projects due to unmanaged risks. Grounded in expected utility theory, the purpose of this quantitative correlational study was to examine the relationship between risk identification, risk responses, and project success. A survey was created in SurveyMonkey® and distributed on LinkedIn. Survey responses were analyzed from 71 project managers with at least five years of experience in Washington, …

Organization Global Software Development Challenges Of Software Product Quality, Patrick Enabudoso

Walden Dissertations and Doctoral Studies

Leaders of global software development (GSD) processes in organizations have been confronting low software product quality. Managers of these processes have faced challenges that have been affecting customer satisfaction and that have resulted in negative social impacts on public safety, business financial performance, and global economic stability. The purpose of this qualitative exploratory multiple case study was to discover a common understanding shared by managers in Canadian GSD organizations of how to meet software product quality goals and enhance customer satisfaction. The conceptual framework for the study was based on Deming's 14 principles of quality management. The purposeful sample included …

Exploring Strategies To Transition To Big Data Technologies From Dw Technologies, Mbah Johnas Fortem

Walden Dissertations and Doctoral Studies

As a result of innovation and technological improvements, organizations are now capable of capturing and storing massive amounts of data from various sources and domains. This increase in the volume of data resulted in traditional tools used for processing, storing, and analyzing large amounts of data becoming increasingly inefficient. Grounded in the extended technology acceptance model, the purpose of this qualitative multiple case study was to explore the strategies data managers use to transition from traditional data warehousing technologies to big data technologies. The participants included data managers from 6 organizations (medium and large size) based in Munich, Germany, who …

Strategies For Managing Offshore Outsourcing For Business Sustainability, Idrissa Maiga Hamidou Issa

Walden Dissertations and Doctoral Studies

Ineffective offshore outsourcing strategies can contribute to unexpected and significant costs for businesses. Strategies to improve outsourcing outcomes are critical to business managers because often third parties contracted to implement offshore outsourcing fail to fulfil business managers’ expectations who can benefit from understanding how to manage outsourced operations and anticipate potential problems. Grounded in transaction cost theory, cultural and customs theory, and the resource-based view theory, the purpose of this qualitative single case study was to explore strategies and processes business managers use to maintain their organization after the implementation of offshore outsourcing. The participants consisted of 3 managers who …

Strategies For Reducing Adverse Medical Events From Implanted Medical Devices, Gary John Zack

Walden Dissertations and Doctoral Studies

Managing medical device monitoring processes is challenging and lacks a realtime, life cycle tracking strategy to reduce adverse medical events and revision costs for hospital administrators, physicians, and patients. Understanding the malfunctions of medical devices for cardiac and orthopedic patients could save lives and reduce hospital liability. Grounded in the business process reengineering conceptual framework, the purpose of this single qualitative case study was to explore strategies hospital managers used to redesign the implant recall surveillance process at one hospital in Pennsylvania. The 5 participants selected successfully implemented a medical device surveillance process that reduced adverse medical events and revision …

Factors Affecting Electronic Banking Adoption In Barbados, Jacqueline Delores Bend

Walden Dissertations and Doctoral Studies

The low rate of customers' adoption of electronic banking services affects retail banks' profitability. The operating cost for a financial transaction performed by bank tellers averages US$1.07 compared to US$0.01 using electronic banking channels. It is paramount for retail banking leaders to understand the factors influencing customer adoption of electronic banking to sustain competitive advantage. Grounded in the technology acceptance model framework, the purpose of this quantitative correlational study was to examine the relationship between perceived usefulness (PU), perceived ease of use (PEOU), and customer adoption of electronic banking in Barbados. The validated technology acceptance model survey instrument was used …

Strategies Used To Mitigate Social Engineering Attacks, Lindiwe T. Hove

Walden Dissertations and Doctoral Studies

Cybercriminal activity performed widely through social engineering attacks is estimated to be one of the substantial challenges the world will face over the next 20 years. Cybercriminal activity is important to chief information security officers (CISOs) because these attacks represent the largest transfer of economic wealth in history and pose risks to the incentives for organizational innovation and investment and eventually become more profitable than the global trade of all major illegal drugs combined. Grounded in the balanced control theory, the purpose of this multiple case study was to explore strategies CISOs use to mitigate social engineering attacks within their …

The Impact Of Technological Advances On Older Workers, Toni Mcintosh

Walden Dissertations and Doctoral Studies

The general problem addressed in this study was the treatment of older workers in the information technology industry that contributes to age discrimination in the workplace. Age discrimination is against the law irrespective of whether it is aimed at older workers in the workforce or becoming job candidates at an advanced age. Although previous research has shown that age discrimination is prevalent in work environments, little has been suggested to eradicate the issue in the workplace. The purpose of this qualitative case study was to investigate the issue of age discrimination as it relates to workers over the age of …

Mathematics Cognitive And Content Abilities Across The Vincentian Student Population, Brendalee Rorena Cato

Walden Dissertations and Doctoral Studies

Mathematics achievement is a key component of student overall academic achievement. However, many students from Saint Vincent and the Grenadines (Vincentian students) continue to perform poorly on the regional Caribbean Secondary Examination Certificate (CSEC) mathematics examination. This poor mathematics performance is a concern for education stakeholders. The purpose of this quantitative, nonexperimental study was to explore the extent to which the CSEC mathematics scores of high-scoring Vincentian students versus low-scoring Vincentian students in the cognitive domains of knowledge, comprehension, and reasoning differ across the content domains of algebra; geometry; measurement; statistics; and relations, functions, and graphs (RFG). The theoretical foundation …