Digital Commons Network^™

Examining U.S. Middle School Students' Achievement In A Blended Learning Environment, Bernadette Ortiz-Brewster

Walden Dissertations and Doctoral Studies

Abstract

U.S. middle schools are increasing offering blended learning curricula that integrates virtual and face-to-face instruction, but the effectiveness of this mode of instruction at the middle school level has not been adequately explored. This investigation provides additional data to the current body of knowledge related to blended learning as a viable option for middle school students. The theoretical framework for this investigation derives from Lev Vygotsky's social development theory and Jean Piaget's constructivist theory of knowledge. The central research question focused on the difference in achievement scores between 6th grade students participating in a virtual course as compared to …

Marketing And Microbusiness, Joran Premo-Hurt

Walden Dissertations and Doctoral Studies

Marketing plays an influential role in small business survival. The purpose of this multiple case study was to explore the mechanisms used by microbusiness retail store owners for collecting, monitoring, and transforming market data into operational marketing activities. Marketing orientation (MO) provided the conceptual framework for this study. Guided by an abridged interview protocol, 4 retail microbusiness owners from Delaware participated in audio-recorded, semistructured interviews. Saturation of data occurred after 3 interviews, confirmed when the 4th interview produced no new information. After transcribing the interviews, member checking occurred, as each participant received a summary of the interview, along with thematic …

Exploring Transition Factors Among Female Veterans Of Operation Enduring Freedom/Operation Iraqi Freedom (Oif/Oef), Myra Robinson

Walden Dissertations and Doctoral Studies

Many transitional challenges have affected female veterans after returning from serving in the war in Iraq and Afghanistan. The number of females joining the military and becoming involved in combat has increased within the past 10 years. Research exists on the transitional challenges of male veterans. However, little research exists on the reintegration challenges faced by female veterans. As these females become veterans, they are more visible in the Veterans Affairs Health Care System. Given this increase in number of female veterans, it is important to address transitional challenges experienced by females who served in Operations Enduring Freedom and Operation …

Factors Impacting Older Adults' Adoption Of Mobile Technology In Emergency Communications, William A. Scerra

Walden Dissertations and Doctoral Studies

An increasing number of older adults must continue working, which requires that they maintain their competencies and work skills, including use of mobile technology (MT). However, little is known about older adult adoption of MT in relation to work. This study used Rogers's diffusion of innovation theory and Davis's technology acceptance model as a framework. The purpose of this exploratory sequential mixed methods study was to examine the experiences of older adults' who adopted MT in the emergency communications (EC) field. Participants came from an emergency services LinkedIn group. Data sources included surveys completed by 85 respondents and interviews of …

Gender Differences, Learning Styles, And Participation In Higher Mathematics, Hilary Elizabeth Seifert

Walden Dissertations and Doctoral Studies

Students' lack of participation in higher-level mathematics courses is a pressing concern. In a small rural district in Alaska, many high school students elect to opt out of taking higher-level mathematics once the minimum requirement is reached. According to Bandura's self-efficacy construct, a learners' motivation is influenced by their self-beliefs and affect towards learning. Moreover, research on student learning experiences in mathematics suggests a gender difference, with girls preferring that less abstract conceptual knowledge be taught through hands-on activities. As mathematics instruction is traditionally taught through lecture and demonstration, both of which are preferences of the assimilator learning style, this …

Social Studies Teachers' Use Of Differentiated Instruction To Help Struggling Learners, Nicole Waid

Walden Dissertations and Doctoral Studies

Students in a local rural northeastern high school have demonstrated decreasing academic performance in social studies courses for the past 5 years. The purpose of this bounded qualitative case study of the local social studies department was to investigate how social studies teachers and administrators for grades 7-12 describe differentiated instruction (DI) and professional development in DI. This study was grounded in the zone of proximal development, which stressed the importance of providing instruction at students' instructional levels, and DI, which emphasized tailoring instruction to address students' needs. Three research questions focused on how social studies teachers and administrators viewed …

Strategies To Improve Marine Inspection Performance In The U.S. Coast Guard, Joshua Buck

Walden Dissertations and Doctoral Studies

U.S. Coast Guard leaders have received feedback concerning gaps in performance management of the Marine Inspection Program (MIP) from maritime industry stakeholders, Department of Homeland Security representatives, and internal agents over the past decade. The purpose of this case study was to explore strategies to improve performance in the U.S. Coast Guard MIP. Data were gathered through a review of documentation pertinent to marine inspection (i.e., policy, requirements, analyses, reports, and job aids) and 13 semistructured interviews with personnel from 3 distinct organizational levels. Study participants represented civilian and active duty personnel from all geographical U.S. Coast Guard districts, as …

Psychological Capital As A Mediator Between Team Cohesion And Productivity, Robert John Cesaro

Walden Dissertations and Doctoral Studies

Organizations attempting to optimize productivity are seeking new ways to develop psychological capital in teams. The researcher conducted a quantitative study to determine whether team cohesion, as assessed by the Revised Group Environment Questionnaire (RGEQ), impacts team productivity, as assessed by the Performance Measurement Team (PMT) Manufacturing Resource System (MRS); whether this relationship can be attributed to a team's level of psychological capital, as assessed by the Psychological Capital Questionnaire (PCQ-12); and whether psychological capital mediates the relationship between team cohesion and team productivity. Forty-five PMTs in a large U.S. defense manufacturing organization were surveyed using the PCQ-12 and the …

Adherence To Self-Care Management Of Sickle Cell Disease Among Caregivers, Muinah Adenike Fowora

Walden Dissertations and Doctoral Studies

The self-care management of sickle cell disease (SCD) improves mortality rate; however, compliance with SCD self-care management remains a problem. The purpose of this study was to examine the knowledge and factors that influence compliance with SCD self-care management recommendations among caregivers of children with SCD. The health belief model was used as the theoretical foundation of this study, theorizing that caregivers' perceived susceptibility, severity, and benefits of SCD self-care management will influence compliance. The study used a quantitative research design. A cross-sectional survey was administered to 100 caregivers of children with SCD attending sickle cell clinics in Lagos, Nigeria …

Decoding Metacommunication Patterns From African American Single Mothers To Sons, Michael-Kamau Henderson

Walden Dissertations and Doctoral Studies

With a significant number of African American single-parent families responsible for raising a generation of male children, the focus of this qualitative case study was on exploring the African American single mother-son dyad to identify metacommunicative signals delivered from mothers to sons. This study was grounded in a theoretical framework combining attachment theory and social learning theory. The research questions focused on identifying metacommunication messages passed from mothers to sons and how metacommunication patterns influence the youth's social identity. Four single mothers with adolescent sons and 4 unrelated adult sons of single mothers participated in semistructured interviews. Data were collected …

Identifying The Beliefs And Barriers To Mammography In Rural African Women, Linda Harper Mangum

Walden Dissertations and Doctoral Studies

Breast cancer is the most commonly diagnosed cancer in African-American (AA) women and is the second leading cause of cancer-related deaths in the United States among AA women ages 40 to 55 years of age. The 5-year breast cancer survival rates for AA women (78%) are lower than are those of Caucasian women (90%). The purpose of this project was to describe the benefits and barriers toward screening mammograms for breast cancer in AA women living in the Southside Health District in Virginia. The subscales of The Champion's Mammography Beliefs and Attitudes Questionnaire (MBAQ, 1999), which is based on the …

Relationship Between Stress And Young Adults' Complementary And Alternative Medicine Use, Anupama Kizhakkeveettil

Walden Dissertations and Doctoral Studies

Complementary and alternative medicine (CAM) refers to a group of diverse medical and healthcare systems, practices, and products not treated as conventional medicine. The body of literature on stress and stress management among young adults has not addressed the use of CAM modalities for stress management among this population. The theoretical foundation of the study was based upon the transactional model of stress and coping, which describes stress as an interaction between an external stressor and the resources available to eliminate the stressor. The purpose of this quantitative study was to examine whether variables such as exposure to CAM, stress …

Electronic Warfare Receiver Resource Management And Optimization, William Metz

Walden Dissertations and Doctoral Studies

Optimization of electronic warfare (EW) receiver scan strategies is critical to improving the probability of surviving military missions in hostile environments. The problem is that the limited understanding of how dynamic variations in radar and EW receiver characteristics has influenced the response time to detect enemy threats. The dependent variable was the EW receiver response time and the 4 independent variables were EW receiver revisit interval, EW receiver dwell time, radar scan time, and radar illumination time. Previous researchers have not explained how dynamic variations of independent variables affected response time. The purpose of this experimental study was to develop …

Strategies For Implementing A Successful Enterprise Resource Planning System, Wanda A. Swanier

Walden Dissertations and Doctoral Studies

The U.S. Department of Defense executives consider enterprise resource planning systems as a critical technology because of increasingly global operations and audit compliance pressures, which may affect organizational performance and overall success. The estimated cost to implement enterprise resources systems to avoid failure and meet budget cost across the Department of Defense services and agencies has ranged from $530 million to $2.4 billion. Guided by the general systems theory, the purpose of this single-case study was to explore enterprise resource planning strategies developed and implemented by United States Marine Corps military leaders. Data collection consisted of a review of organizational …

High School Science Teachers' Perceptions Of Teaching Content-Related Reading Comprehension Instruction, Theresa D. Williams

Walden Dissertations and Doctoral Studies

In order to achieve academic success, students must be able to comprehend written material in content-area textbooks. However, a large number of high school students struggle to comprehend science content. Research findings have demonstrated that students make measurable gains in comprehending content-area textbooks when provided quality reading comprehension instruction. The purpose of this study was to gain an understanding of how high school science teachers perceived their responsibility to provide content-related comprehension instruction and 10 high school science teachers were interviewed for this study. Data analysis consisted of open, axial, and selective coding. The findings revealed that 8 out of …

Math Teachers' Experiences Learning And Teaching Math, Kathryn Couch

Walden Dissertations and Doctoral Studies

Abstract

In a charter school in the Southwest United States, elementary students were struggling to

attain proficiency in math and have been failing to meet the standards in math on the

Arizona Instrument to Measure Standards test. As a result, these students may not have

been prepared for more advanced math courses as they continued their schooling, and this

failure to attain proficiency in math may continue to impact the school's ability to make

adequate yearly progress. The purpose of this explanatory case study was to explore the

perspectives of elementary math teachers toward teaching math, their preparation to teach …

The Role Of Illness Intrusiveness And Personal Control In Mediating The Relationship Between The Intravenous Immunoglobulin Treatment Experience And Quality Of Life In Neurological Autoimmune Patients, Pamela Jane Gennari

Walden Dissertations and Doctoral Studies

Intravenous immunoglobulin (IVIG) is a common treatment for the neurological autoimmune diseases multiple sclerosis, multifocal motor neuropathy, myasthenia gravis, and chronic inflammatory demyelinating polyneuropathy. However, there is scant literature regarding the psychological effects of this treatment on quality of life (QOL). Using illness intrusiveness theory and personal control theory, this correlational, cross-sectional study examined the relationship between the IVIG treatment experience and QOL in neurological autoimmune patients. Surveys were employed to collect data from 79 patients at a neurological infusion center in Phoenix, AZ. Quantitative analyses included correlation, multiple regression, and mediation analyses to determine whether (a) IVIG treatment experience …

Ninth Grade Student And Teacher Perceptions Of Teacher-Student Relationship, Lynda Rose Huggins

Walden Dissertations and Doctoral Studies

The challenge of transitioning into high school is associated with social anxiety, decreased grades, increased absences, and overall motivation to learn. Based on anecdotal evidence from 9th grade teachers in the Ohio School District, teachers had poor rapport with some of their students, and 9th graders were being retained more often than were students in any other grade. Grounded in Noddings's care theory, the purpose of this mixed methods sequential case study was to explore perceptions of rapport between 9th graders and their teachers. Guiding research questions were used to discover student and teacher perceptions about their relationship as it …

The Relationship Between High School Culinary Curriculum And Culinary Arts College Student Achievement And Completion, Emily Knight

Walden Dissertations and Doctoral Studies

There is a lack of persistence and completion of students enrolled in a local college culinary arts program, a problem also evident in national data. Some students entering the college program have participated in a defined high school curriculum focused on culinary arts, such as the National Restaurant Association Education Association's ProStart curriculum. The purpose of this study was to determine if participation in the ProStart program was related to the mean grade point average (GPA) and time to completion in the college culinary arts program. Dewey's theory of experience provided the theoretical framework. Participants from 2 cohorts at the …

Maternal And Child Health Access Disparities Among Recent African Immigrants In The United States, Bakali Mukasa

Walden Dissertations and Doctoral Studies

Health care disparities are U.S. national public health concerns that disproportionately affect minority populations. The focus of published studies on the health of larger immigrant populations from Europe, Asia, South America, and the Caribbean has revealed a knowledge gap on the health of African and other minority immigrants. The purpose of this phenomenological study was to explore disparities in access to maternal and child health (MCH) care as well as the causes and effects of such disparities to care-seeking experiences of recent African immigrants. Andersen's behavioral model of health services use provided the theoretical lenses to interpret study findings. Eleven …

Effect Of Class Size On Student Achievement In Secondary School, Christopher Eric Uhrain

Walden Dissertations and Doctoral Studies

The school board of a school district in South Carolina has proposed to increase class size in all schools due to mandatory budgetary reductions. However, at the secondary school level, the literature on the effect of larger class size on student achievement is conflicting. The theoretical framework by Lazear suggested that the minimization of negative externalities (i.e., problematic behavioral and academic characteristics of students) achieved through the mechanism of smaller class size impacts student learning. Reducing the number of students in a classroom alters the entire classroom environment, creating a more positive learning environment in which students are able to …

Exploring Leadership Strategies To Maximize Profitability In The Nigerian Housing Sector, Babatunde Adesiyan

Walden Dissertations and Doctoral Studies

The collapse of construction companies in the Nigerian housing sector continues unabated, even in the face of 17 million housing deficits. Many construction company leaders believe that lack of business opportunities and the recent world economic decline have been responsible for the collapse. This situation has resulted in limited business activities for 80% of the Nigerian construction companies. This multiple case study explored the strategies used by leaders to maximize profitability in the Nigerian housing sector. The RBV and Porter's model of competition provided the conceptual framework for the study. Findings were based on detailed reviews of the policies and …

Nigerian Women's Empowerment Status And Its Influence On Access To Reproductive Health Services, Temi Aregbesola

Walden Dissertations and Doctoral Studies

Nigeria is a patriarchal society, which puts women in subordinate positions that may prompt gender-based discrimination. While evidence of this phenomenon has been investigated in Nigeria and other African countries, no such investigation has been conducted with immigrant and first-generation Nigerian women in the United States. The purpose of this study was to examine the role of a Nigerian woman's perceived empowerment and status on her willingness to access reproductive health services. The research questions examined views of Nigerian traditional beliefs' influence on status and how attitudes around traditional beliefs relate to access to reproductive health services and/or knowledge. Data …

Establishing Mobile Financial Services In Ethiopia, James R. Kanagwa

Walden Dissertations and Doctoral Studies

Mobile phone service is increasing among low income populations; however, with over 1 billion mobile service users worldwide, many people still lack banking services. Banks do not reach out to the poor because of the high operational costs involved. Scholars and industry practitioners have indicated that mobile phones could be an alternative channel for delivering financial services to the less advantaged and unbanked, without requiring a traditional bank with a branch network. The purpose of this bounded case study was to explore the strategies bank managers used to implement the new mobile banking service to the Ethiopian community. The new …

Public Health Leaders' Perceptions Of And Attitudes Concerning Eating Disorders, Karin L. Lightfoot

Walden Dissertations and Doctoral Studies

Eating disorders are associated with high mortality rates. Most eating disorder prevention research is conducted within the fields of psychology and psychiatry, not in public health. This gap in public health research can lead to insufficient attention to the root causes of eating disorders and minimal upstream prevention efforts. The purpose of this phenomenological study was to identify public health leaders' perceptions of and attitudes concerning eating disorders as a public health issue. Objectification theory was used to describe how societal expectations have created an environment in which people's self-worth is based on their outward physical appearance. Ecological theory was …

A Qualitative Phenomenological Study Of Employee Perceptions Of The Impact Of Layoffs, Linda Carrington

Walden Dissertations and Doctoral Studies

Millions of Americans were terminated from their employment in massive layoffs in 2013, which not only created outrage among employees. but also opened the door for retaliatory lawsuits. However, profitable companies are still engaged in restructuring and layoffs, which have a negative effect on employees, managers, and survivors. Such actions create mistrust in management and continue to plague the workforce and the economy. The purpose of this phenomenological study was to explore the impacts that layoffs and downsizing have on employees' trust, work performance, behavior, and health. Informed by Sarker's theory on management and employee trust, the research questions explored …

Exploring Obesity Risk Factors In Five Regions Of Virginia, Karen Toth Carpenter

Walden Dissertations and Doctoral Studies

Obesity continues to weaken our nation physiologically, psychologically and financially with an overall prevalence rate of 34.9% or 78.6 million Americans affected. Variance in obesity prevalence rates, in the state of Virginia, account for over a 15% difference from one health district to the next. The purpose of this research was to better explore the regional obesogenic factors that may exist among five health districts in the state of Virginia. The socio ecological theory provides the conceptual framework of the study to understand the variance in regional obesity rates, as a function of the contributing risk factors that a region …

Faculty Career-Enhancing Training Opportunity Effects On Perceived Organizational Support, Job Satisfaction, And Organizational Commitment, Laura Pateri Bryant

Walden Dissertations and Doctoral Studies

Research has shown that organizations outside of academia that provide career-enhancing training opportunities have employees with greater levels of perceived organizational support, job satisfaction, and organizational commitment than do organizations without such training. Increasingly, colleges and universities are looking to attract and retain the most talented individuals; providing opportunities for growth through career-enhancing training opportunities may be one way to do so. This study examined whether or not faculty at institutions providing career-enhancing training opportunities showed a similar positive relationship between perceived organizational support, job satisfaction, and organizational commitment as have employees at organizations outside of academia; this study also …

High School Math Teachers' Perspectives About Improving Teaching Constructed Response Questions, Kenya Claiborne Roberts

Walden Dissertations and Doctoral Studies

Student test scores related to mathematical word problems have been declining in a rural school district in western Louisiana. Word problems constitute a major component of the Algebra 1 End of Course examination, which students must be able to pass to graduate. Mathematics teachers have struggled to find appropriate strategies to teach students to answer constructed response questions (CRQs) effectively. The purpose of this study was to investigate the perceptions of math teachers about effective teaching strategies for improving student performance on CRQs. Guided by Piaget's constructivist theory, which is characterized by an emphasis on learner control of the learning …

Effects Of Acculturation Gap And Attachment Style On South Asian Adolescent Well-Being, Malliga Delaney Delaney

Walden Dissertations and Doctoral Studies

South Asian (SA) adolescents experience the added challenges of identity development and coping as a minority population of color in a predominantly White host culture. Adolescent attachment style (AS) with their parents, along with an acculturation gap (AG) with their parents, can either add to or alleviate their struggles. A matched acculturation style and secure AS with their parents were hypothesized to result in higher ethnic identity and adaptive coping. The Brief COPE, Multiethnic Identity Measure, Inventory of Parent and Peer Attachment, and the Bicultural Inquiry Questionnaire were used to measure the independent (AG and AS) and dependent variables (identity …