Heat pumps are a vital part of each building for their role in keeping the space conditioned for the occupant. This study focuses on developing a model for the ground-source heat pump at the Zero Energy lab at the University of North Texas, and finding the minimum data required for generating the model. The literature includes many models with different approaches to determine the performance of the heat pump. Each method has its pros and cons. In this research the equation-fit method was used to generate a model based on the data collected from the field. Two experiments were conducted for the cooling mode: the first one at the beginning of the season and the second one at the peak of the season to cover all the operation conditions. The same procedure was followed for the heating mode. The models generated based on the collected data were validated against the experiment data. The error of the models was within ±10%. The study showed that the error could be reduced by 20% to 42% when using the field data to generate the model instead of the manufacturer’s catalog data. Also it was found that the minimum period to generate the cooling …

The problem of this study was to determine the academic, personal, social, and financial level of satisfaction of the international students at North Texas State University. The subjects were 351 international students representing fifty-four different countries. These students were enrolled full time during the fall semester of 1981. The instrument used to gather the data was a questionnaire. The questionnaire was validated by a panel of experts and pretested on a small sample of international students.

An experiment was conducted to investigate the relative effectiveness of a combined behavior rehearsal anxiety relief conditioning paradigm with a more conventional behavioral rehearsal program in the treatment of deficient assertive behavior.

The City of Denton Pecan Creek Wastewater Treatment Facility has periodically failed effluent toxicity testing. A Toxicity Identification Evaluation has determined that Diazinon in the effluent is contributing to the observed toxicity. Chlorpyrifos is also implicated as a factor. The City of Denton constructed a half acre experimental wetland to remove Diazinon related toxicity. Results from spiking and microcosm experiments indicate that the wetland can reduce the Diazinon.

This research study investigated the effectiveness of the application of child-centered play therapy procedures and skills by trained fifth grade students in play sessions with kindergarten children who had adjustment difficulties. Specifically, this research determined if play sessions with trained fifth grade students facilitated change in kindergarten children's self concept, internalizing behavior, and externalizing behavior and their parents' stress level.

Canonical correspondence analysis (CCA) was used to explore relationships between measured environmental variables and in situ phytoplankton communities in a moderately eutrophic North Texas Reservoir.

A group of 101 older adults (sixty-five years of age and over) who lived independently in three retirement apartment residences in Denton, Texas, were asked about their patterns of reading, television viewing, and radio listening habits for two periods in their lives: (1) at age forty to fifty-five and (2) at the present. Respondents were asked about their use of external information sources (public library, grocery store, newsstand, etc.) and their use of proximate information sources (radio, friends/relatives, television, etc.) They were also asked about access to transportation, income satisfaction, status of general health, vision, hearing, physical mobility and reasons for utilizing various information sources. Four hypotheses relating changes in health, environment, economic status, and education to reasons for reading and use of information sources were tested through the use of t-tests, regression analysis and analysis of variance. Within this group of older adults, use of external information sources decreased from the past to the present. There was, however, no change in the use of information sources located in or near the residence as difficulties in these areas increased. A relationship was found between educational level and reading for pleasure earlier in life. Also, those with higher educational levels reported …

The purpose of the study was to determine if subjects would improve in cardiovascular efficiency following a six-week program of trampolining and/or tumbling. Literature concerning cardiovascular efficiency, training, trampoline, testing instruments, test selection and maximal oxygen intake were thoroughly reviewed. The Astrand test of maximal oxygen intake and the Cooper twelve-minute run test of aerobic capacity were found to best fit the needs of the present study.

The purpose of the research study was to provide improved relaxation training with the use of an electromyography feedback device based on the design of Green et al. (1969). It was intended that this instrument would allow the training of deep muscle relaxation to the point of neuro-muscular silence, while remaining inexpensive enough to be applied in the clinical setting.

The purpose of this study is to change the structure of a fifth-grade class in order to increase the social interaction of the group.

Bumble bees (Bombus spp.) are adept pollinators of countless cultivated and wild flowering plants, but many species have experienced declines in recent decades. Though urban sprawl has been implicated as a driving force of such losses, urban green spaces hold the potential to serve as habitat islands for bumble bees. As human populations continue to grow and metropolitan areas become larger, the survival of many bumble bee species will hinge on the identification and implementation of appropriate conservation measures at regional and finer scales. North Texas is home to some the fastest-growing urban areas in the country, including Denton County, as well as at least two declining bumble bee species (B. pensylvanicus and B. fraternus). Using a combination of field , molevular DNA and GIS methods I evaluated the persistence of historic bumble bee species in Denton County, and investigated the genetic structure and connectivity of the populations in these spaces. Field sampling resulted in the discovery of both B. pensylvanicus and B. fraternus in Denton County's urban green spaces. While the relative abundance of B. fraternus in these spaces was significantly lower than historic levels gleaned from museum recors, that of B. pensylvanicus was significantly higher. Statistical analyses found …

The purpose of this study is to determine the levels of anxiety in college freshmen and seniors from the Departments of Science and Art at North Texas State College by using the Taylor Manifest Anxiety Scale. It is hoped that the findings uncovered by this study will be of help to others interested in investigating and exploring this area.

The present study compared the academic stress levels of 450 college sophomore students at a public university and a public two-year college. This investigation also explored the levels of academic stress by institutional type, age, gender, and ethnicity. Data were obtained from having the subjects complete the Academic Stress Scale, a questionnaire which lists thirty five stress items found in the college classroom. Analysis of variance and t-tests were used to analyze the data. There were 225 subjects each in the community college group and the university group. The university group had a statistically significant higher mean stress score than the community college group. 294 traditional age (23 and younger) and 156 nontraditional age (24 and over) subjects stress levels were compared. It was found that the traditional age college student group experienced a statistically significant higher academic stress level in both academic settings. Group means were compared between the stress scores of 245 female and 205 male subjects. At both the community college and university levels, the female group had a statistically significant higher level of academic stress. The academic stress levels were also compared according to ethnicity. The minority group consisted of 104 subjects and 346 subjects comprised …

"The problem with which this study is concerned is that of determining whether the implementation of a teacher-training curriculum providing the courses required for state certification of vocational-technical teachers employed in the North Texas public school systems is feasible and desirable at North Texas State University."--1.

The purpose of the study was to ascertain the effects of induced fatigue on performance of the balance, lengthwise test, the leg raise test, the vertical space te4st, and the separate feet test.

This study sought to determine if different factors had influenced females and males to select engineering/science-related studies at the Texas Academy of Mathematics and Science (TAMS). The data were collected in the fall semester in 1997 at TAMS located on the University of North Texas campus from a survey of factors reported in the literature that had influenced students to enroll in engineering/science-related curriculum.

The attitude of the church school teacher must be improved, and this is the primary purpose of this paper. An attempt was made to study scientifically teacher attitudes as measured by an adaptation of the Purdue Teacher Opinionaire administered to a systematically observed sample chosen from three church school faculties in the three Southern Baptist Churches in Denton, Texas.

The primary purpose of the study was to test a self-instructional approach to teaching a college French diction course to determine if it would equal or surpass in effectiveness a course taught by a traditional approach. The study sought to provide a partial solution to the problems of the increasing student-teacher ration in colleges, and of the individualization of teaching students who have various learning rates and backgrounds.

The present study explored the possibility of applying Koppitz's developmental scoring techniques of mental maturity to retarded adults. The following hypotheses were tested: 1) that there is a significant correlation between the Koppitz HFD Test scores and the WAIS Full Scale scores; 2) that the correlation between the Koppitz HFD Test scores and the WAIS Performance Scale scores is also significant. Statistical computations did confirm the latter hypothesis but not the former one.

The use of scales on the Personality Assessment Inventory (PAI) to detect defensiveness in criminal and nonclinical samples was evaluated. Forty-five male inmates of a county jail and 38 male undergraduate psychology students were provided with incentives to complete the PAI under two conditions: standard instructions and experimental instructions to feign a specific, positive role. The sequence of instructions was counterbalanced in both samples for the purpose of examining ordering effects. A repeated measures multivariate analysis of variance (MANOVA) was performed, yielding significant main effects of condition, group and order. Additionally, a step-wise discriminant function analysis significantly predicted group membership (i.e., subjects under honest and faking conditions) with a hit rate = 84.4%. Finally, a more effective cutting score for the Positive Impression scale was recommended.

It was the purpose of this study to investigate the nature of the relationships among anxiety, achievement, and intelligence. It was deduced that anxiety and intelligence work together mainly at the level of average intelligence. At this level, the addition of drive in the form of anxiety increases performance level, while a lack of drive or anxiety decreases that level. The influence of anxiety on academic achievement is insignificant at other levels due to the overriding effects of intelligence.

Previous research suggests that careproviders' attitudes and perceptions significantly influence the type and quality of services received by institutionalized adults with developmental disabilities (IADD). This study explored attitudes careproviders hold concerning training needs of the IADD and their service model orientation. It traced the history of training people with developmental disabilities and provided a brief review of the medical, developmental, and normalization models of service delivery. The conceptual framework upon which this study was based proposed that staff perceptions and orientation concerning service delivery to the IADD can be conceptually related to five factors in a research model. They were identified as: (a) careprovider's characteristics; (b) working environment; (c) previous careprovider experience; (d) developmental disability history within the careprovider's family; and (e) self-reporting of a service delivery orientation. This study examined only a portion of this model (factors a, b, and e). The response sample included 370 professionals and paraprofessionals, aged 17 to 72 years, who were employed at a large residential facility serving individuals with developmental disabilities in Denton, Texas. The respondents were predominantly female (76.5%), Caucasian (72.2%) with slightly less than 75% having more than a high school diploma. The instrument, a self-administered questionnaire, consisted of three parts; …

Thirty-three children from a community sample, ages 5 to 13, were administered the Rorschach Inkblot Test, along with projective Draw-an-Animal and Draw-a-Person tasks and other psychological measures. Subjects were randomly assigned to one of three test order conditions: Draw-an-Animal followed by the Rorschach, Draw-a-Person followed by the Rorschach, and Rorschach before any other projective test. The number of Human and Animal contents in the test records was examined. Analysis showed no significant differences among the three groups for production of the content variables, suggesting that the Rorschach Inkblot Test is relatively robust with respect to test order effects.

The aim of this thesis is to narrate and analyze lynching and atypical violence in Denton County, Texas, between 1920 and 1926. Through this intensive study of a rural county in north Texas, the role of law enforcement in typical and systemic violence is observed and the relationship between Denton County Officials and the Ku Klux Klan is analyzed. Chapter 1 discusses the root of the word lynching and submits a call for academic attention to violence that is unable to be categorized as lynching due to its restrictive definition. Chapter 2 chronicles known instances of lynching in Denton County from its founding through the 1920s including two lynchings perpetrated by Klavern 136, the Denton County Klan. Chapter 3 examines the relationship between Denton County Law Enforcement and the Klan. In Chapter 4, seasons of violence are identified and applied to available historical records. Chapter 5 concludes that non-lynching violence, termed "disappearances," occurred and argues on behalf of its inclusion within the historiography of Jim Crow Era criminal actions against Black Americans. In the Prologue and Epilogue, the development and dissolution of the St. John's Community in Pilot Point, Texas, is narrated.