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Retrospective Theses and Dissertations

1998

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Articles 1 - 30 of 67

Full-Text Articles in Social and Behavioral Sciences

Make A Living: Agriculture, Industry And Commerce In Eastern Hebei, 1870-1937 , Fuming Wang Jan 1998

Make A Living: Agriculture, Industry And Commerce In Eastern Hebei, 1870-1937 , Fuming Wang

Retrospective Theses and Dissertations

The existing scholarship on Chinese agricultural history and peasant economy always portrayed Chinese peasants as cultivators and equated agricultural commercialization as cash crop growing. Based on the field surveys made by the Chinese and Japanese investigators in the 1930s, this dissertation tries to correct the over-simplification of the Chinese peasant economy and describe how the peasants in Eastern Hebei made a living by a combination of agriculture, industry and commerce. By examining the ecosystem and calculating the grain production and consumption, it is found that the returns from farming were not even enough for the peasants own consumption. Eastern Hebei ...


Profiting From Competition: Financial Tools For Electric Generation Companies , Charles William Richter Jr. Jan 1998

Profiting From Competition: Financial Tools For Electric Generation Companies , Charles William Richter Jr.

Retrospective Theses and Dissertations

Regulations governing the operation of electric power systems in North America and many other areas of the world are undergoing major changes designed to promote competition. This process of change is often referred to as deregulation. Participants in deregulated electricity systems may find that their profits will greatly benefit from the implementation of successful bidding strategies. While the goal of the regulators may be to create rules which balance reliable power system operation with maximization of the total benefit to society, the goal of generation companies is to maximize their profit, i.e., return to their shareholders. The majority of ...


Issues Of Collective Action: Common Agency, Partial Cooperation, And Clubs , Kevin Jay Siqueira Jan 1998

Issues Of Collective Action: Common Agency, Partial Cooperation, And Clubs , Kevin Jay Siqueira

Retrospective Theses and Dissertations

The dissertation explores two topics of collective action. In the first two chapters, a modified common agency model is developed and used to investigate the impact of partial cooperation on agent incentives. Partial cooperation is introduced into the model through the assumption that it is only the smallest group of homogenous principals who are capable of overcoming the free-riding problem. In the first of two scenarios examined, the case where principals move simultaneously, it is shown that partial cooperation is self-defeating from the organizing principals' perspective despite a strengthening of agent incentives and effort. Consequently, there is no incentive for ...


Constructs That Contribute To Student Satisfaction For Participating In Graduate Level Courses Delivered By Full Motion Interactive Fiber Optic Communications Network , Fatemeh Zarghami Jan 1998

Constructs That Contribute To Student Satisfaction For Participating In Graduate Level Courses Delivered By Full Motion Interactive Fiber Optic Communications Network , Fatemeh Zarghami

Retrospective Theses and Dissertations

The purpose of this study was to measure constructs that contribute to graduate student satisfaction with interactive televised courses that have been taught via Iowa Communications Network (ICN). In this study student satisfaction with the instructor's communication and teaching skills, accessibility of the instructor out of classroom, course management, course content, and quality of technology was measured by using the Student Satisfaction with ICN (SSICN) questionnaire. Students' needs and their suggestions to improve the quality of education through ICN were identified through five open-ended questions. The population for the study was 690 graduate students who took ICN courses between ...


Risk Factors Of Comorbidity Between Aggressive Behaviors And Depressive Disorders In School-Aged Children , Sara Ann Warrick-Swansen Jan 1998

Risk Factors Of Comorbidity Between Aggressive Behaviors And Depressive Disorders In School-Aged Children , Sara Ann Warrick-Swansen

Retrospective Theses and Dissertations

The goal of the current study was to clarify the relation between aggression and depression in school-aged children by examining the roles of five risk factors (economic status, parent depression, parent-child conflict, academic competence and peer rejection) that may explain the relation between aggression and depression. The study collected information from a sample of 368 families of sixth grade children aged 10-13 years (M = 11.3). These children were living in intact families in the rural Midwest and variables were measured using mother-, father-, and child self-report. The findings of this study supported a significant relation between aggression and depressive ...


Examining The Construct Validity Of Broad Personality Measures For Intellectually Gifted Adolescents: Are We Getting Unique Information Relative To Vocational Preferences? , David Burke Schmidt Jan 1998

Examining The Construct Validity Of Broad Personality Measures For Intellectually Gifted Adolescents: Are We Getting Unique Information Relative To Vocational Preferences? , David Burke Schmidt

Retrospective Theses and Dissertations

Is the personality structure for intellectually talented adolescents (age 13) similar to the structure found in adults, or is it still maturing? Moreover, is it worthwhile to assess generic personality dimensions in this population if vocational interests are already assessed? Schmidt, Lubinski, and Benbow (under review) examined whether measures of preferences were construct valid for intellectually talented adolescents. One of the goals of the current research was to extend that examination to traditional personality instruments originally designed for use in adult populations. The extent to which the Multidimensional Personality Questionnaire (MPQ, Tellegen & Waller, in press) and the Adjective Check List (ACL, Gough & Heilbrun, 1983) can be used appropriately and profitably with intellectually talented 13-year olds was examined. Convergent and discriminant correlational patterns of the ACL and MPQ scales were in accordance with theoretical expectations across 91 external criteria. This provided substantial evidence for the construct validity of these instruments with intellectually talented adolescents. Another goal of the current research was to examine if the MPQ and ACL were providing incremental validity relative to one another. Initial evidence suggested that the MPQ and ACL might be assessing redundant sources of individual differences. Thus, regression equations were designed to forecast the scales of each instrument from the opposing instrument. These equations were cross-validated concurrently, predictively, and retrospectively. By combining extrinsic convergent validation and cross-validation techniques, the conceptual equivalence of actual instrument scales and the forecasted scales was examined. These analyses suggested that the MPQ was able to account for much of the psychologically significant variance in the ACL scales, with respect to the external criteria used here. A final goal was to examine whether the MPQ and ACL were providing incremental validity relative to the Strong Interest Inventory (Harmon, Hansen, Borgen, & Hammer, 1994). Interests and personality showed some degree of overlap; however, they seemed to be assessing somewhat distinct ...


Community Resources And Community Sentiment: Youth In Rural Brandenburg, Germany , Kristi Susan Lekies Jan 1998

Community Resources And Community Sentiment: Youth In Rural Brandenburg, Germany , Kristi Susan Lekies

Retrospective Theses and Dissertations

Dramatic social change in East Germany has warranted the need for communities to assist youth in managing new opportunities and risks. Using data from "Youth in Rural Brandenburg `96," the relationship between youth ages 15 to 21 and their communities was examined through a model of community sentiment. Incorporated were sociodemographic, life interest, social network and support, community, and community resource variables in explaining community attachment and satisfaction. Of interest were resources of special relevance for youth: employment, housing, leisure, and social support;Descriptive analyses indicated negative evaluations of employment and leisure resources, more positive views of housing and social ...


Day Treatment: Development Of A Model Program And Determination Of Its Effects On 13-21 Year Olds , Thomas Joseph Gehlsen Jan 1998

Day Treatment: Development Of A Model Program And Determination Of Its Effects On 13-21 Year Olds , Thomas Joseph Gehlsen

Retrospective Theses and Dissertations

For decades there has been a need in communities to provide a collaborative series of services to the emotionally and behaviorally disordered adolescent. These services need to be provided in a lesser restrictive environment other than a residential setting but more restrictive that a mainstream educational setting. In this completed study, the purpose was to describe an ecological treatment program for Behavior Disorder/Severely Emotionally Disturbed adolescents. The question, "How did the development of this type of treatment program come about and how did the effects of the program make the coordinated efforts of various local agencies a state and ...


Two Essays On Reputation Effects In Economic Models , Tigran A. Melkonian Jan 1998

Two Essays On Reputation Effects In Economic Models , Tigran A. Melkonian

Retrospective Theses and Dissertations

In this thesis we investigate formal economic models of repeated interactions where some players might be able to establish and/or maintain a reputation for choosing certain actions. In Chapter 1 of the thesis we review the literature on reputation models;In Chapter 2 we extend the basic chain-store game to the two-incumbent case. We consider a highly stylized model where two incumbents populate a finite number of markets. In each of these markets there is a threat of potential entry by a different competitor. In case of entry, each of the two incumbents simultaneously and independently decides whether to ...


Efficacy Of Institutional Interventions On The Attainment Profile Of African-Americans At A Regional Predominately White Institution: Questions Of Will, Effort, Competence And Responsibility , Robert Andre Broadus Jan 1998

Efficacy Of Institutional Interventions On The Attainment Profile Of African-Americans At A Regional Predominately White Institution: Questions Of Will, Effort, Competence And Responsibility , Robert Andre Broadus

Retrospective Theses and Dissertations

The nature of access to higher education at predominately white institutions for African-Americans has been focused largely on the preparation of the student. Little attention has been placed on the quality of the interaction of the student with standardized institutional practices and procedure. The purpose of this study is to examine the differences obtained by African-Americans, when the institution adjusts practices and procedures to be inclusive of the academic, social and environmental characteristics versus the creation of specialized interventions;African-American students attending a Midwestern regional comprehensive university between 1985-1990 are the bases of the study. Each entry class was introduced ...


Cultural Synergy: An Analysis Of The Impact Of Gender And Race On The Perceptions Of Administrators And Faculty On Understanding And Managing Diversity In Higher Education , R. Mary Thomas-Gallet Jan 1998

Cultural Synergy: An Analysis Of The Impact Of Gender And Race On The Perceptions Of Administrators And Faculty On Understanding And Managing Diversity In Higher Education , R. Mary Thomas-Gallet

Retrospective Theses and Dissertations

The purpose of this study was to examine whether faculty and administrators had different perceptions on the impact of cultural synergy as an approach to understand and manage cultural diversity in higher education. These perceptions were examined to identify whether there was an impact by the respondents' race and gender. The challenges facing higher education in dealing with diversity issues on campus and in the curriculum were discussed in this study and issues such as racism, affirmative action, and employee demographics were reviewed. The cultural synergy approach was examined by looking at various models;The population surveyed included all faculty ...


Economic Stress And Depressive Symptoms Among Southern African American Women: An Examination Of Mediating And Moderating Factors , Phyllis Ann Brown Jan 1998

Economic Stress And Depressive Symptoms Among Southern African American Women: An Examination Of Mediating And Moderating Factors , Phyllis Ann Brown

Retrospective Theses and Dissertations

This study examines the effects of economic hardship on mental health for 501 African American women from Georgia and Mississippi. Three issues are of particular concern: (1) the differential response patterns to economic stress and depressive symptoms; (2) the utilization of coping resources such as social support, sense of control, and religiosity to moderate the link between economic stress and depressive symptoms; and (3) a comprehensive understanding of the relationship between economic hardship, economic stress, and depressive symptoms. Findings suggest that African American women in Georgia and Mississippi are less likely to report both economic stress and depressive symptoms if ...


An Examination Of Selected Characteristics Contributing To Well-Being Among Married Women At Midlife And Married Younger Adult Women , Carolyn S. Dunham Jan 1998

An Examination Of Selected Characteristics Contributing To Well-Being Among Married Women At Midlife And Married Younger Adult Women , Carolyn S. Dunham

Retrospective Theses and Dissertations

The "biologizing" of the life course presents a regressive view of women's lives that appears to be in stark contrast with the perceptions reported by many women at midlife today. Not only can women at midlife today expect to live another 40 years after their last child leaves home, but many claim they have never felt so healthy or so full of energy in their lives, and that they are just reaching their prime. These claims raise the question of just what it is that explains this difference in understandings about the years between young adulthood and old age ...


Student Perceptions Of The English For Native Speakers Of Other Languages (Ensol) Program At Iowa State University, Marianne Keller Van Natta Jan 1998

Student Perceptions Of The English For Native Speakers Of Other Languages (Ensol) Program At Iowa State University, Marianne Keller Van Natta

Retrospective Theses and Dissertations

No abstract provided.


Who's Calling Iowa Home?: A Study Of Inmigrants To Select Rural Iowa Counties Since 1993, Julie Michelle Overstreet Jan 1998

Who's Calling Iowa Home?: A Study Of Inmigrants To Select Rural Iowa Counties Since 1993, Julie Michelle Overstreet

Retrospective Theses and Dissertations

As nonmetropolitan migration becomes a more common occurrence for households across the United States, a need to address both societal and economic issues associated with this movement arise. The issue of "push-pull," or the examination of both what was expected as a result of the move to a new state and then what will contribute to the desire of the recent immigrants to remain in the state is an important area of study. Data from the pilot study conducted by the Department of Human Development and Family Studies at Iowa State University, entitled "Living in Iowa", was used to explore ...


Individual, Familial, And Parental Factors Associated With Teenage Pregnancy , Kristin Elizabeth Stainer-Person Jan 1998

Individual, Familial, And Parental Factors Associated With Teenage Pregnancy , Kristin Elizabeth Stainer-Person

Retrospective Theses and Dissertations

The focus of the current study was to compare parenting and nonparenting adolescent girls on individual, familial and social variables. Subjects included 96 adolescents ranging in age from 15 to 20 years (M=17 years). Of the sample, 55 were parenting teens and 41 were nonparenting teens; 60 percent white, 12 percent Black; seven percent Oriental, four percent Hispanic, one percent Native American and 10 percent others. All subjects were currently attending alternative high schools in a large Midwestern metropolitan area. All measures were self-report and retrospective;Comparative analyses, consisting of t-tests, and chi square analyses, were conducted on select ...


Social Inequality In Living Conditions, Health, And Quality Of Life In South Africa: Development Policy Challenges And Prospects , Chukwudi Hezy Okafor Jan 1998

Social Inequality In Living Conditions, Health, And Quality Of Life In South Africa: Development Policy Challenges And Prospects , Chukwudi Hezy Okafor

Retrospective Theses and Dissertations

Urban housing and living conditions, health and quality of life are important goals and indicators of development that are causally interrelated. These constitute social problems in the form of poor quality housing and infrastructure, limited access to health care, and unacceptable quality of life. This study describes apartheid based discrimination and segregation that affected South Africa until recently, and describes the sociodemographic and socioeconomic characteristics of households in urban areas of South Africa. Using a 1993 national survey of 4,447 urban South African households, this study evaluates a conceptual model in which it is hypothesized that there are direct ...


Exchange Rate And Market Power In Import Price , Jeong-Yun Seo Jan 1998

Exchange Rate And Market Power In Import Price , Jeong-Yun Seo

Retrospective Theses and Dissertations

This study consists of three papers in the area of international market analysis, as listed in Chapter 1, 2, and 3. Each paper has its own issue and application, but the main theme behind these papers is to figure out interactions of international firms' real decisions with respect to changes in financial variables or structure attributing to the firms' behaviors. The papers focus especially on a risk-averse international firm's decision model with respect to fluctuations in exchange rates;The first two papers relate the international firm's ex-ante real decision to the portfolio theory in correspondence to recent importance ...


Relationships Among Student Attitudes, Motivation, Learning Styles, Learning Strategies, Patterns Of Learning And Achievement: A Formative Evaluation Of Distance Education Via Web-Based Courses , Ching-Chun Shih Jan 1998

Relationships Among Student Attitudes, Motivation, Learning Styles, Learning Strategies, Patterns Of Learning And Achievement: A Formative Evaluation Of Distance Education Via Web-Based Courses , Ching-Chun Shih

Retrospective Theses and Dissertations

The World Wide Web (WWW) is the latest in a long line of educational technologies, and the list of courses on it is growing daily. Formative evaluations would help educators enhance teaching and learning in Web-based courses. This study analyzed the relationships between student achievement and the following variables: attitudes, motivation, learning strategies, patterns of learning, learning styles, and selected demographics. It was a population study that included 99 students taking two non-major introductory biology courses offered over the WWW by Iowa State University in the fall of 1997. Seventy-four (75%) students completed a learning style test, an on-line questionnaire ...


Natural Language And Mixed Modality Task Presentations In The Human-Computer Interaction Using Programmable Logic Controllers , John Robert Wright Jr. Jan 1998

Natural Language And Mixed Modality Task Presentations In The Human-Computer Interaction Using Programmable Logic Controllers , John Robert Wright Jr.

Retrospective Theses and Dissertations

This dissertation focuses on the human-computer interaction elements of task presentation and task structure in the programming of Programmable Logic Controllers (PLCs). Task presentation methods that were explored included a natural language (GE Fanuc's State Logic), and a mixed modality language (GE Fanuc's Logicmaster Relay Ladder Logic). Task Structure elements utilized in this study were linear procedural tasks and conditional branching tasks;A two-level factorial analysis of covariance determined that task presentation was a significant contributor to programming development times. Task structure and the interaction between task presentation and task structure did not yield significant p-values at the ...


Exchange Rate Forecasting: An Application Of Radial Basis Function Neural Networks , Yih-Jiuan Wu Jan 1998

Exchange Rate Forecasting: An Application Of Radial Basis Function Neural Networks , Yih-Jiuan Wu

Retrospective Theses and Dissertations

The purpose of this research is to investigate the forecasting performance of Artificial Neural Network models applied to foreign exchange rates. The study concentrates on the behavior of forecasts of exchange rates generated from the radial basis function (RBF) network models where little previous work exists;Exchange rates examined are the German mark/US dollar, Japanese yen/US dollar, and Italian lira/US dollar. One-step-ahead forecasts from univariate and multivariate RBF models are compared with those generated from ARIMA models, random walk forecasts and the forward rates. Interest rates and the money supply (M1) are used as explanatory variables in ...


The Interactional Community: A Structural Network Analysis Of Community Action In Three Midwestern Towns , Jeff S. Sharp Jan 1998

The Interactional Community: A Structural Network Analysis Of Community Action In Three Midwestern Towns , Jeff S. Sharp

Retrospective Theses and Dissertations

The research examines how the structure of individual and organizational interaction within a community influences community action. The analysis is based on data from three rural, Midwestern communities. Data from a survey of community residents, leadership and organizational network data, and profiles of local community action projects are used to examine the relationship between the structure of local interaction and community action. The findings support a structural approach to the interactional community and confirm that social capital (the structure and character of individual interaction) and social infrastructure (the structure of group-level interaction patterns) influence community action processes. The findings have ...


The Fathers Of Infants Born To Adolescent Mothers: A Comparison With Non-Parenting Male Peers And Adolescent Mothers , Stacy Dawn Thompson Jan 1998

The Fathers Of Infants Born To Adolescent Mothers: A Comparison With Non-Parenting Male Peers And Adolescent Mothers , Stacy Dawn Thompson

Retrospective Theses and Dissertations

This study examined social-emotional variables and views of parenting of fathers of infants born to adolescent mothers. Participants were a convenience sample of 15 fathers of infants born to adolescent mothers, 15 age-matched non-parenting male peers, and 15 adolescent mothers. Data collected included demographic information, self-esteem, depressive symptoms, social support, parenting satisfaction, and general life satisfaction. Additionally, a semi-structured interview that focused on the subjects' views about parenting was conducted. Results showed significant differences between fathers and non-fathers and between fathers and adolescent mothers. Fathers reported less support from friends and the community, lower general life satisfaction, and lower self-esteem ...


Assessment Of The United States Information Agency Sponsored University Affiliation Project Between Iowa State University And The National Agriculture University Of Ukraine Using The Concerns-Based Adoption Model (Cbam), Victor A. Udin Jan 1998

Assessment Of The United States Information Agency Sponsored University Affiliation Project Between Iowa State University And The National Agriculture University Of Ukraine Using The Concerns-Based Adoption Model (Cbam), Victor A. Udin

Retrospective Theses and Dissertations

The problem of this study was to evaluate the success of the Iowa State University (ISU) Linkage project (Crawford & Melnichuk, 1994) at the National Agricultural University of Ukraine (NAUU). The evaluation of the project's success and the educational changes it brought about were accomplished by determining the levels of use of the key elements of this change: the revised curriculum, new methods of teaching, and new teaching materials used at NAUU. This program evaluation research of the Linkage project was conducted based on the Concerns-Based Adoption Model (CBAM). The Levels of Use dimension of the Concerns-Based Adoption Model was applied to determine if the Linkage project was successful;The survey questionnaire consisted of sections describing the NAUU participants': demographic characteristics; knowledge of the English language; understanding of the essence of the Linkage project; awareness of the administrative changes at NAUU; and levels of use of the new curriculum developed as the result of the Linkage project. Statistical analysis revealed that neither demographic characteristics nor administrative reform has a relation to the levels of use of the main results of the Linkage project. The school environment was the only factor ...


Assessing The Benefit Of Improved Traveler Information: A Pseudo-Dynamic Modeling Approach , Michael David Anderson Jan 1998

Assessing The Benefit Of Improved Traveler Information: A Pseudo-Dynamic Modeling Approach , Michael David Anderson

Retrospective Theses and Dissertations

This research develops an assessment methodology to estimate traveler information benefits using regional travel demand and microscopic simulation approaches in combination. This method uses the strengths of the two conventional approaches in an innovative way, providing essentially a pseudo-dynamic model capability that uses readily available data and is easy to understand and implement. The pseudo-dynamic model provides measures of delay that are more reasonable than those available through either of the model sub-components individually;While attempts have been made to develop dynamic regional planning models, regional model "simulation" is not yet available. Therefore, the approach addresses several gaps in capabilities ...


The Home Fronts Of Iowa, 1940-1945 , Lisa Lynn Ossian Jan 1998

The Home Fronts Of Iowa, 1940-1945 , Lisa Lynn Ossian

Retrospective Theses and Dissertations

Iowa's citizens during World War II became soldiers in their loyalty, energy, and commitment as they fought on one or more of the home fronts. These four home fronts (historic terms) were the farm, production, community, and kitchen fronts. The farm front as part of the Food for Freedom campaign produced corn, soybeans, eggs, pork, beef, milk, and hemp for the Armed Services and the Allies. Iowa's farmers faced labor and machinery shortages yet produced record amounts of crops and animals. This prosperity, however, cost Iowa some of its valuable topsoil and initiated a turn toward a factory ...


Making Incongruent Requests: Discourse Analysis Of Conversations Between American And Chinese Speakers Of English In International Student Advising Sessions, Wenqin Shen Jan 1998

Making Incongruent Requests: Discourse Analysis Of Conversations Between American And Chinese Speakers Of English In International Student Advising Sessions, Wenqin Shen

Retrospective Theses and Dissertations

No abstract provided.


The C-Test: Usefulness For Measuring Written Language Ability Of Non-Native Speakers Of English In High School, Jongsook Park Jan 1998

The C-Test: Usefulness For Measuring Written Language Ability Of Non-Native Speakers Of English In High School, Jongsook Park

Retrospective Theses and Dissertations

The purpose of the study is to evaluate whether the C-test is useful as a test measuring non-native speakers' ability of written language to help teachers and decision-makers select and place limited English proficient students for English as a Second Language (ESL) instruction in high schools in Iowa. The overall usefulness of the C-test is evaluated by examining individual qualities of test usefulness, or six qualities, in current testing theories: reliability, construct validity, authenticity, interactiveness, impact, and practicality. Chapter 1 of this study reports the background: a need for a test measuring non-native speakers' ability of written language to improve ...


Testing For Purchasing Power Parity: A Nonlinear Approach , Chong Wang Jan 1998

Testing For Purchasing Power Parity: A Nonlinear Approach , Chong Wang

Retrospective Theses and Dissertations

This dissertation focuses on testing purchasing power parity. The special feature of the paper is that we switch from conventional unit-root test and cointegration test to a category of asymmetric testing methodology, namely, TAR (Threshold AutoRegressive) model test and M-TAR (Momentum Threshold AutoRegressive) model test. Enders & Granger (1998) and Enders & Sikols (1998) recently made these approaches available;Conventional testing methodology rarely supports PPP strongly even though PPP has very sound theoretical foundation. The deviation could come from two perspectives: first, by claiming the national price index usually is downward stickey, we question the correctness of the symmetric adjustment mechanism which is implied by the alternative hypothesis in the conventional test method ...


Time-Series Implications Of The Permanent Income Hypothesis On Durable Goods Consumption , Sungwon Cho Jan 1998

Time-Series Implications Of The Permanent Income Hypothesis On Durable Goods Consumption , Sungwon Cho

Retrospective Theses and Dissertations

Mankiw's rational expectations-permanent income hypothesis (RE-PIH) model on consumer durable expenditures predicts that the change in durable expenditures should follow an MA (1) process. Empirical tests of this joint hypothesis, however, have been rejected using the postwar U.S. data. This thesis presents a time-series representation of the RE-PIH model that is capable of explaining the quarterly aggregated durable goods expenditure series. A novel feature of the analysis is that the observed infrequent purchases of durable goods by the consumers are incorporated into the model and that the time aggregation problem is explicitly addressed to investigate the aggregate dynamics ...