Digital Commons Network^™

Feedback : Best Practices For Effectiveness, Hanne Elizabeth Wuertz

Dissertations and Theses @ UNI

The focus of this paper is on the use of formative assessment in classrooms which is increasingly becoming a widespread practice in education today. More specifically, the paper examines the role feedback (a crucial element of formative assessment) plays in student achievement. Feedback and the way it is defined, delivered, and used impacts the effectiveness of formative assessment. In addition, decisions about, and changes in, instruction are often made based on what is communicated through feedback. Thus, this paper defines feedback, discusses best practices for effective feedback, and describes how school psychologists can encourage and help facilitate the use of …

Ergonomics Evaluation Of Task Demands Among Kitchen Staff, Jaqueline Pereira Da Silva

Dissertations and Theses @ UNI

The purpose of this study was to evaluate the workplace demands faced by a group of kitchen staff at six dining centers and to survey musculoskeletal complaints among this sample of workers. The dining centers were located in six different public elementary and middle schools in a city in the south of Brazil. This research was developed following qualitative research design, and the researcher made use of the “Activity Oriented Ergonomics (AOE) methodology.

The AOE focuses on the work analysis that evaluates real work situations that allows a reassessment of work demands. In this case the chosen methodology was a …

Limited Assessment Of A Selected Particulate Matter Sensor Technology In Emission Measurement Applications On Diesel Vehicles, Svetlana Korotkova Espinosa

Dissertations and Theses @ UNI

The study assessed the ability of a novel particle sensor to provide adequate evaluation of real-time emissions from modem diesel engines and estimate the effectiveness of emission control devices. Emission data were obtained from vehicles in real-world field conditions under various test cycles. The datasets were used to determine whether there is an association between particulate matter (PM) measurements produced by particle sensor and the PM measurements from reference instrument. Exploratory analysis was combined with statistical techniques to investigate suitability of particle sensor to adequately measure PM mass concentrations in exhaust gases of modem diesel vehicles. Results of the study …

An Investigation On In-Process Spc Sampling Frequency For Shaft Bearing Turning Process, Jiaxu Chu

Dissertations and Theses @ UNI

The machining processes have the uniqueness of discrete production and flexible scheduling as cellular manufacturing design. To ensure the quality of machining products, control charts for Statistical Process Control (SPC) has been implemented in the company to monitor the machining process. Sampling is an essential part of data collection for SPC control charts and sampling should be done for machining processes becomes an issue in the company.

This study focused on the investigation of SPC sampling frequencies for shaft bearing turning process using the technique of Average Production Length (APL). The purpose of the study was to identify the SPC …

The Integration Of Wind Energy In The Electrical Grid During The Contingencies, Islam Ali

Dissertations and Theses @ UNI

As wind energy expansion develops, there are also many problems and challenges to connect the wind farms to the grid. There are many different interactions during the connection like the voltage flicker, harmonics, transient, short circuit current, frequency, and safety protection. Those problems may affect the performance of the grid and may cause serious problems. This study investigates the grid-connection problems for the wind turbines and offers appropriate solutions. This study provides a simulation for the power system during the faults. The electrical grid in the simulation contains generators and wind turbines which are connected to the grid. It also …

Modeling And Analysis Of Grid-Connected Solar-Wind Hybrid Power System, Sultan Altamimi

Dissertations and Theses @ UNI

Renewable energies are considered to be a significant part of the energy mix to assist the existing electricity demand and the future of electrical generation. Electrical power simulation software is increasingly being used to answer and determine the source of potential problems in the actual power system. To have a better understanding of an electrical power system, it is essential to validate all the components through simulation within an environment that allows accurate modeling of all power system components. This research presents modeling and analysis of an actual grid-connected solar-wind hybrid system at University of Northern Iowa campus in Cedar …

Women's Status And Fertility Rates : Results From National Level Data, Jason Thomas Surratt

Dissertations and Theses @ UNI

The rapid increase in human population makes the study of fertility rates an area of imminent concern. Understanding the relationship between women's status and fertility rates is important because providing women with access to adequate health services, educational opportunities, occupational opportunities, and political power will give them greater control over their lives. With increased control over their lives women are more likely to limit the number of children they have to their desired amount as they gain access to the resources to limit child bearing and to find fulfillment in other areas of their lives. This study contributes to the …

Role Strain In Probation And Parole Work And Strategies Used To Reduce Strain, Samantha A. Shoger

Dissertations and Theses @ UNI

Probation and parole officers play a vital role in the operation of the correctional system. As a part of their role work in community-based corrections, probation and parole officers must act as both a client monitor and treatment counselor to not only assist in client reentry, but also to protect the public. Due to the nature of probation and parole work and the historical changes that have affected their work (i.e. the punitive turn, the New Penology, and the current correctional budgetary constraints), probation and parole officers must cope with a variety of factors in their work that can cause …

Comparing Middle School Students' Learning And Attitudes In Face-To-Face And Online Mathematics Lessons, Clayton M. Edwards

Dissertations and Theses @ UNI

Online learning has become a staple within education for college students, and has started to enter high schools. While this instructional delivery system has been shown to work for older students, few studies have involved middle school students. If this trend toward online teaching of younger students continues, online learning could become a large part of education for middle school students, making research in this area important.

Multiple positive and negative aspects have been identified for online learning. Positive characteristics include individualized pacing; electronic resources, and the opportunity for rapid or personalized feedback, while negative aspects address increased student responsibility …

Best Practices Of Individual Family Service Plans And Analyses Regarding Quality Outcomes, Ashley M. Andrew

Dissertations and Theses @ UNI

This quantitative research study provides information regarding best practices of Individual Family Service Plans (IFSPs). Research on the content, family-centeredness, and outcomes in IFSPs will be discussed. Evidence suggests that although expected content within IFSPs are clearly defined by the Individuals with Disabilities Education Act (IDEA), professionals have a lack of consensus on what IFSPs should include, lack family­ centeredness, and have minimal understanding of a clearly defined outcome according to IDEA. In addition, this study provides additional data regarding quality outcomes. The researcher rated 120 outcomes in IFSPs against a state rubric. Data indicated that although empirical research states …

Asking School Psychologists How Job Satisfaction Can Be Increased, Justin S. Janssen

Dissertations and Theses @ UNI

School psychology faces retention issues due to a current and projected shortage of school psychologists and the large number of baby boomers getting ready to retire. Meeting this need becomes vital in order to prevent negative effects of the shortage from continuing. Research has supported a link between job satisfaction and retention in the school psychology research as well as in job satisfaction research in general. Much of the current literature on the job satisfaction of school psychologists, however, focuses only on the identification of correlates with job satisfaction and largely avoids asking practitioners how their job satisfaction can be …

Career Cruising Impact On The Self Efficacy Of Deciding Majors, Anthony William Smothers

Dissertations and Theses @ UNI

The purpose of this study was to analyze the impact of Career Cruising© on self-efficacy of deciding majors in a university setting. The use of the self-assessment instrument, Career Cruising©, was used with measuring the career-decision making self-efficacy in a pre and post-test with deciding majors. The independent variables are the Career Cruising ©, self-assessment instrument, gender, age, ethnic background, year in college, GPA, generation of education, and involvement. The dependent variables are the levels of self-efficacy in the five subscales of pre and post-test results. Those subscales include Accurate Self-appraisal, Gathering Occupational Information, Goal Selection, Planning for …

A Qualitative Study Of New Secondary Teacher Attrition In An Iowa Urban School Setting, James E. Dostal

Dissertations and Theses @ UNI

The teaching profession is constantly changing and with it comes the challenges and difficulties of teaching in the 21 st century. The challenge of the teaching profession for new teachers creates various levels of differing frustrations. These various frustrations are the reason why new teacher attrition is high not only in the United States but also more specifically, in the urban setting of Iowa schools. The focus of this study is to provide current explanations of why new teachers decide to leave teaching within the first five years of entering the profession. With the intent of understanding why specific teachers …

Student-Centered Literacy Instruction: An Examination Of An Elementary Teacher's Experience, Carolyn Marie Wiezorek

Dissertations and Theses @ UNI

In this qualitative study, I examined and interpreted the literacy instruction of a fourth grade instructor who identified herself as a student-centered teacher. I sought to understand and interpret the beliefs and attitudes of my participant, Julie. Through seven unstructured interviews and five observations, I collected, and simultaneously interpreted, data. Julie freely shared her beliefs, successes, challenges, and frustrations regarding her literacy instruction.

Because of the contextual nature of the study I sought emerging themes through analysis and reflection. Four themes surfaced: attitude and philosophy, environment, instructional practices, and impact on students. Julie possessed an attitude that all students could …

Circulating And Organizational Testosterone And The Perception Of Dominance, Jon C. Pedersen

Dissertations and Theses @ UNI

This project focused on the relationship between both circulating testosterone (T), prenatal exposure to T, and perception of emotions in the faces of others. Based on past research, Twas hypothesized to be related to the Theory of Mind (ToM) abilities, which are concerned with reading emotions and intentions of others. More specifically, T was hypothesized to be more strongly related to the perception of dominant emotions compared to the perception of non-dominant emotions. To test this idea, the Test of the Eyes was used, which measures the ability to correctly perceive emotions in pictures of faces (specifically, eyes). To date, …

Strategic Communication In Women's Rights Organizations: Tools, Challenges And Best Practices, Anastasia Kalinina

Dissertations and Theses @ UNI

Despite rapid globalization and tremendous expansion of the number of women's rights organizations, international attention to the issues of women and girls remains rather low. While some women's rights networks and organizations leap to prominence, others do not receive recognition and public support. I wanted to know why. I interviewed 13 directors and communication managers of women's rights non-governmental organizations to see how they manage communication. I used a convenience sample that included a wide range of geographical locations and sizes of NGOs. The interviews were held via Skype. I conducted a theme analysis of transcribed interviews. The participants indicated …

Self-Defeating Behaviors In Sexual Offenders: Exploring Factors Of Social Support And Motivation To Change, Cassie Rose Nieman

Dissertations and Theses @ UNI

Sexual offenders often engage in self-defeating behaviors that affect their treatment progress. Self-defeating behaviors are those that are dynamic in nature and change over time throughout the course of treatment. Certain aspects of an offender's life may play a role in whether and how often these behaviors occur, such as the level of social support on which the offender can rely. A second factor is the degree of motivation an offender has to change his behavior. The purpose of this study was to determine if and how the factors of social support systems and motivation to change impact self-defeating behaviors. …

Development Of An Ankle Function Model, Kelli R. Snyder

Dissertations and Theses @ UNI

Lateral ankle sprains (LAS) represent the most common orthopedic injury treated by athletic trainers, yet there is no consensus regarding the measurement of the effectiveness of care (e.g. outcomes). Further compounding this problem is the repetitive nature of LAS, often referred to as "functional" or "chronic" ankle instability (FAI, CAI, respectively). Although a common entity in practice and research, FAI is inconsistently defined and assessed. Essentially, athletic trainers are neglecting to address one of the most important issues identified in their profession (outcomes) for the most common injury for which they provide care (LAS). Therefore, the purpose of this research …

A Sociable Humanoid Autonomous Robotic Platform (The Sharp Project): An Evaluation Of The G.E.N.E.S.I.S. Robot As An Interactive Consumer Robotic Platform, Jeffrey J. Rick

Dissertations and Theses @ UNI

The Social Humanoid Autonomous Robotic Platform (SHARP) project is an android project that was created with the intent of making learning about androids and robotics easier for the novice, diverse for the expert, educational in the classroom, and useful in the home or business. The project centers itself on its simplicity, low cost, and expandability. This paper illustrates how the SHARP Project has the potential to be an affordable fit in nearly every modern setting. The introduction of the SHARP project lays the groundwork for people of many ages, incomes, and educational levels to take advantage of robotics technology. The …

Case Study On The Journey Of An Elementary School Labeled As A Persistently Low-Achieving School, Annette Duncan

Dissertations and Theses @ UNI

This study examined an elementary school, located in an urban school district, which was labeled as a Persistently Low-Achieving School (PLAS) by the federal government in 2009 in order to determine how the school planned to change leadership and staff; increase student achievement; and implement new approaches for changes in school climate.

The purpose of this study was to investigate the response of this school in the following areas:

1. Professional Practices of Teachers and Administrators: What impact did the PLAS label have on the professional practices of teachers and administrators in this building?

2. Curriculum and Academic Achievement: What …

Destination Attractiveness Of The Silos And Smokestacks National Heritage Area, Puyong Choi

Dissertations and Theses @ UNI

The purpose of this study was to identify the characteristics of destination attractiveness of the Silos and Smokestacks National Heritage Area (SSNHA) in Iowa using the relative attractiveness and importance of the 15 attributes identified by Gearing, Swart, and Var's (1974) scale and 3 attributes identified by Hu and Ritchie (1993). These attributes represent the overall destination attractiveness of the Silos and Smokestacks National Heritage Area (SSNHA) in Iowa. This study focused on the perspective of visitors and tourism experts.

Fishbein's (1967) multi-attribute model was used to determine the attitudes and preferences of the participants. The model is used to …

Baseball In The Heartland: Semi-Pro Baseball Survives In Iowa, Todd Michael Hospodarsky

Dissertations and Theses @ UNI

Baseball has been an important part of American popular culture for over one hundred years. In the early part of the twentieth century baseball was the nation's most pervasive sport and symbolized many values and attitudes that Americans held dear. During the late nineteenth century, adult baseball teams were formed within small towns across the nation. The team members were typically considered amateur athletes playing "town team" baseball. Over the years, as they were given opportunities to make money from their play, the term of semi-professional was applied to many of these players.

The decades following World War II were …

Disordered Eating Habits And Extreme Weight Loss Techniques In Collegiate Wrestlers: A Qualitative Analysis, Jaime Marie Mayer

Dissertations and Theses @ UNI

Wrestlers have often been targeted as high-risk athletes for developing eating disorders. Research has found that wrestlers do practice extreme weight loss and disordered eating behaviors that are consistent with eating disorders. However, little evidence suggests that wrestlers also possess the psychological aspect that is required in order for a person to be diagnosed with an eating disorder according to the DSM (2000).

Many times researchers conclude that few wrestlers meet the criteria for eating disorders, but they participate in many behaviors that put them at risk of developing an eating disorder in the future. Very few if any researchers …

Using Metarules To Integrate Knowledge In Knowledge Based Systems. An Application In The Woodworking Industry, Alvaro Villavicencio

Dissertations and Theses @ UNI

The current study addresses the integration of knowledge obtained from Data Mining structures and models into existing Knowledge Based solutions. It presents a technique adapted from commonKADS and spiral methodology to develop an initial knowledge solution using a traditional approach for requirement analysis, knowledge acquisition, and implementation. After an initial prototype is created and verified, the solution is enhanced incorporating new knowledge obtained from Online Analytical Processing, specifically from Data Mining models and structures using meta rules. Every meta rule is also verified prior to being included in the selection and translation of rules into the Expert System notation. Once …

Exploring New Roles Of Classroom Teachers In Iowa Communities Experiencing Rapid Ethnic Diversification, Cindy R. Lewis

Dissertations and Theses @ UNI

Non-English speakers are currently the fastest growing population group in Iowa schools. Immigrant and refugee families are choosing in record numbers to make Iowa their home. Across the state, newcomers are added daily to classroom rosters, and teachers are challenged to meet the unique social, emotional, and educational needs of students.

The purpose of this qualitative study was to explore how selected teachers in classrooms across Iowa have responded personally and professionally to an evolving socio-political climate. The study examined how professional roles have been redefined and how teachers have responded to the changes. Three research questions guided this qualitative …

Bullying Policies In Iowa Schools, Terri A. Buettell

Dissertations and Theses @ UNI

This review examines research on bullying. Bullying is defined, along with the various roles filled by children, including bully, assistant, reinforcer, defender, outsider, or victim. The outcomes for participants and the systems in which they interact are cause for action. Bullying usually occurs in the school setting, making it an appropriate environment for intervention. Components of successful programs are discussed, specifically, the Olweus Bullying Prevention Program, Promoting Alternative Thinking Strategies (PATHS), and Bully Busters, highlighting the successes associated with them and the importance of the teacher's role, along with increasing awareness in the school, organizational strategies, and rewards and consequences …

A Case Study Of One Iowa Female Elementary School Principal's Journey Into Administration, Angela J. Fowler

Dissertations and Theses @ UNI

The representation of women in educational administration fluctuated throughout history from the 1900s to present day. Presently, women represent over 53% of all elementary school principals in Iowa; but documentation of their specific stories and perspectives is infrequent. I conducted this research with the intent to build upon the qualitative research studies previously completed on educational leadership; specifically lo include an ethnographic account of one female's story in an urban school district.

Through a series of in-depth interviews and participant observations, I gained the perspective of one female elementary school principal in Iowa's experiences into and through the principalship. In …

Development Of A Modular Dual Engine Hybrid Electric Vehicle Simulation Model, Kenan Baltaci

Dissertations and Theses @ UNI

Depleting resources of fossil fuel, climate change impacts, high oil prices, and strict emission requirements are leading to the research on efficient, environmentally friendly, and lowered fossil fuel dependent solutions in the transportation field. While a number of studies used computer modeling and simulation tools to investigate hybrid electric vehicles (HEVs), very few attempted to model and simulate a dual-engine hybrid vehicle. Designing a vehicle engine to meet energy needs in the fully loaded condition is not an optimal solution for manufacturers and customers. The larger the engine, the higher the manufacturing costs for companies, and higher fuel consumption for …

Producing Early Modern Space And The Mind In Public And Closet Drama, Megan M. Gallagher

Dissertations and Theses @ UNI

The construction of space has become such a common process for modernity that its culture would argue spatial experiences as intrinsic in nature. However, it is through the consideration of the experience of space and spatial boundaries one notices the cooperative nature of space. This thesis explores the early modem constructions of space and the development of the modem idea of the mind through the closet dramas of John Milton (Samson Agonistes) and Elizabeth Cary (The Tragedy of Mariam the Fair Queen of the Jewry), and the public dramas of William Shakespeare (Measure for Measure and Julius Caesar). Our notions …

Learning Transfer Of Geospatial Technologies In Secondary Science And Mathematics Core Areas, Curtis P. Nielsen

Dissertations and Theses @ UNI

The purpose of this study was to investigate the transfer of geospatial technology knowledge and skill presented in a social sciences course context to other core areas of the curriculum. Specifically, this study explored the transfer of geospatial technology knowledge and skill to the STEM-related core areas of science and mathematics among ninth-grade students. Haskell's (2001) research on "levels of transfer" provided the theoretical framework for this study, which sought to demonstrate the experimental group's higher ability to transfer geospatial skills, higher mean assignment scores, higher post-test scores, higher geospatial skill application and deeper levels of transfer application than the …