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14,479
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1,422
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1,142
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1,004
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932
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635
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628
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Department of Psychology
426
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289
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20,835 Matching Results
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Adolescent Self-Theories of Singing Ability within the Choral Hierarchy
The purpose of this study was to explore adolescent self-views of singing ability through both implicit theories and self-concept meaning systems. A secondary purpose of this study was to examine these self-views specifically in the context of a choral hierarchy. Using a researcher-designed survey instrument, I gathered data from middle- and high-school students currently enrolled in a choir program organized in a hierarchical structure. I analyzed descriptive statistics of survey responses to items designed to measure implicit theories of singing ability, singing self-concept, and goal orientation. I also examined differences among participants by ensemble placement in implicit theory and self-concept scores, correlation between implicit theory and self-concept, and whether implicit theory, self-concept, goal orientation, or current enrollment could predict future enrollment decisions. In addition to these quantitative measures, I coded open-ended responses to two failure scenarios and examined participant responses by ensemble and gender. Both implicit theory and self-concept scores were higher for participants at the top of the choral hierarchy than at the bottom. Open-ended responses, however, did not align with the implicit theory scale and a number of students presented a false growth mindset. Open-ended responses also indicated that failure scenarios were likely to result in an altered …
Date:
May 2020
Creator:
Adams, Kari
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Gradient-Index Metamaterial Infrared Detector for Enhanced Photo-Response and Image Quality
An enhanced thermal imaging concept made possible through the development of a gradient-indexed metamaterial infrared detector that offers broadband transmission and reflection in THz waves. This thesis proposes a proof of feasibility for a metamaterial infrared detector containing an anti-reflective coating with various geometrically varying periodic metasurfaces, a gradient-indexed dielectric multilayer for near-perfect longpass filtering, and a gradient index of refraction (GRIN) metalens for enhanced focal plane thermal imaging. 2D Rigorous Coupled-Wave Analysis (RCWA) is used for understanding the photonic gratings performance based on material selection and varying geometric structure. Finite Difference Time Domain (FDTD) is used to characterize performance for a diffractive metalens by optimizing the radius and arrangement of cylindrical nanorods to create a desired phase profile that can achieve a desired focal distance for projections on a detector for near- to far-infrared thermal imaging. Through combining a micromachined anti-reflective coating, a near-perfect longpass filter, and metamaterial GRIN metalens, infrared/THz focal plane thermal imaging can obtain faster photo-response and image quality at targeted wavelengths, which allows for scientific advancements in electro-optical devices for the Department of Defense, aerospace, and biochemical detection applications.
Date:
May 2022
Creator:
Adams, Kelsa Derek
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
"The military unlocked that door for me": Collegiate Experiences of Women Veterans in STEM Majors
Institutions of higher education are a key pathway for supplying the science, technology, engineering, and mathematics (STEM) workforce. Military service members have been identified as STEM-ready and a potential pool for STEM as they transition into civilian careers. Furthermore, women are the fastest growing subpopulation of veterans and may decrease the gender gap within STEM. Higher education researchers are interested in understanding the characteristics and experiences of students who select STEM majors and then persist to graduation. Literature related to women veterans is limited and a qualitative case study approach was utilized to achieve an in-depth understanding of their college experiences. This study examined four women who were successfully navigating STEM majors at one institution and revealed their varying motivations for enrollment and persistence. Three themes generated from this study included: self-awareness, success is personal, and military experience matters. Subsidiary themes included starting over; strategy; salience of age; stage of life; self-advocacy; standards; personal attributes; past experiences; personal responsibility for learning; procuring resources; career path (STEM) reinforced or introduced; creditable and credible; and cultivated soft skills. Veteran critical theory, multiple dimensions of identity and intersectionality were useful frameworks to reference as participants expressed the influence of their identities on their …
Date:
May 2022
Creator:
Adams, Lisa Dawn
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Carlos Muñiz and Social Drama
The problem with which this investigation is concerned is that of determining the merit of the works of the contemporary Spanish playwright Carlos Muñiz in the area of social drama.
Date:
May 1973
Creator:
Adams, Sarah Sue
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Interactive Reviews and Learning Style on Student Learning Outcomes at a Texas State University
This study investigated the effects of interactive lessons and learning style on student learning outcomes in self-defense education classes. The study utilized an experimental design that incorporated four self-defense education classes at the University of North Texas (UNT) during the fall semester 2007 (N = 87). A pre-test was administered during the first week of class to determine prior knowledge of the participants. The Visual Auditory Reading/Kinesthetic Inventory (VARK) was used to assess the learning styles of the students and was completed after the pre-test of knowledge was administered. The treatment group received the interactive lesson and the control received a paper review. The difference between the pre and posttest was used as a measure of improvement of the student's learning outcomes. A 2 (treatment/control) by 2 (pretest/posttest) ANOVA with repeated measures was conducted to examine the differential improvement in knowledge across the intervention. Based on the 2-way ANOVA there was a significant difference between the treatment group and the control group based on their learning outcomes. A repeated measures ANOVA was conducted to determine if there was a significant difference between the groups based on the pre and post test scores. Based on the results of a one week …
Date:
May 2008
Creator:
Adams, Wesley
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Proposed Industrial Arts General Shop Curriculum for Pauline G. Hughes Middle School, Burleson Independent School District
This study was made to gather data and information to aid the Burleson Independent School District in initiating an industrial arts general shop program in the Pauline G. Hughes Middle School. The data and information were obtained from the Texas Education Agency, the Burleson Independent School District records, the vocational director, the assistant superintendent, a questionnaire, and the Brodhead-Garrett 1976-1977 Catalog. The majority of the general shop programs in the north Texas area conduct classes five days a week for fifty-five minutes a day and accommodate twenty-four students per class. Furthermore, the majority of the general shop programs offer three units of instruction per year and teach one unit of instruction each quarter.
Date:
May 1978
Creator:
Adams, William Leroy.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A History of Concert Waltzes for Piano (Lecture-Recital) Together with Three Recitals of Selected Works by Rachmaninov, Stravinsky, Schubert, J.S. Bach, Reger, Adams, Covino, Chopin, Schönberg, Ives, and Beethoven
The first three recitals contained solely performances of piano music. The first one consisted of an Etude-Tableau by Rachmaninov, the Capriccio by Stravinsky (the chamberensemble accompaniment arranged for second piano), and the great Sonata in A minor by Schubert. The second recital contained a Prelude and Fugue by J. S. Bach, Reger's Variations and Fugue on a Theme by Bach, a Romance by the performer, Peter Covino's Toccatina Op. 4 No. 8, and Chopin's Nocturne Op. 55 No. 2 and Scherzo in E. The third recital consisted of Schonberg's Sechs Kleine Klavierstilcke, Ives's Some South-Paw Pitching, and the Sonata Op. 106 ("Hammerklavier") by Beethoven. The fourth recital featured a lecture which surveyed the piano waltz throughout its history. Several complete examples, namely Weber's Invitation to the Dance, Chopin's Waltz in A minor, and La Valse by Ravel, and incomplete examples including a Lundler by the performer, several of Schubert's waltzes, Chopin's Waltz Op. 42, and Man Lebt Nur Einmal! by Strauss-Tausig interspersed the lecture. All four recitals, tape-recorded, and the lecture, typewritten, are filed together in the Graduate Office of the North Texas State University.
Date:
May 1978
Creator:
Adams, William Lloyd, Jr.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effect of Presence of Support Systems and Level of Agreement on the Performance of Work Groups
In the study of team-based organizations most of the research has focus on the internal make-up and structure of teams. Recently there has been more interest in the effects that environment has on teams. With this new focus Support Systems in organizations have become an area of interest. Examining the perceptions of workers with respect to support systems of organizations could give insight into performance. This study specifically examines the interaction between a team's shared perception of the support in their environment and the level of support in their environment. The interaction between the two does seem to have a strong relationship with perceived performance. How do the two concepts interact, and what does this mean for organizational designers? Both questions are discussed.
Date:
May 1999
Creator:
Adcock, John R. (John Roger)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Hudspeth County Herald and Dell Valley Review (Dell City, Tex.), Vol. 11, No. 35, Ed. 1 Friday, May 5, 1967
Weekly newspaper from Dell City, Texas that includes local, state, and national news along with advertising.
Date:
May 5, 1967
Creator:
Addington, Dianne; Brown, Julia & Gilmore, Joyce
Object Type:
Newspaper
System:
The Portal to Texas History
Hudspeth County Herald and Dell Valley Review (Dell City, Tex.), Vol. 11, No. 35, Ed. 1 Friday, May 5, 1967
Weekly newspaper from Dell City, Texas that includes local, state, and national news along with advertising.
Date:
May 5, 1967
Creator:
Addington, Dianne; Brown, Julia & Gilmore, Joyce
Object Type:
Newspaper
System:
The Portal to Texas History
Hudspeth County Herald and Dell Valley Review (Dell City, Tex.), Vol. 11, No. 36, Ed. 1 Friday, May 12, 1967
Weekly newspaper from Dell City, Texas that includes local, state, and national news along with advertising.
Date:
May 12, 1967
Creator:
Addington, Dianne; Brown, Julia & Gilmore, Joyce
Object Type:
Newspaper
System:
The Portal to Texas History
Hudspeth County Herald and Dell Valley Review (Dell City, Tex.), Vol. 11, No. 36, Ed. 1 Friday, May 12, 1967
Weekly newspaper from Dell City, Texas that includes local, state, and national news along with advertising.
Date:
May 12, 1967
Creator:
Addington, Dianne; Brown, Julia & Gilmore, Joyce
Object Type:
Newspaper
System:
The Portal to Texas History
Hudspeth County Herald and Dell Valley Review (Dell City, Tex.), Vol. 11, No. 37, Ed. 1 Friday, May 19, 1967
Weekly newspaper from Dell City, Texas that includes local, state, and national news along with advertising.
Date:
May 19, 1967
Creator:
Addington, Dianne; Brown, Julia & Gilmore, Joyce
Object Type:
Newspaper
System:
The Portal to Texas History
Hudspeth County Herald and Dell Valley Review (Dell City, Tex.), Vol. 11, No. 37, Ed. 1 Friday, May 19, 1967
Weekly newspaper from Dell City, Texas that includes local, state, and national news along with advertising.
Date:
May 19, 1967
Creator:
Addington, Dianne; Brown, Julia & Gilmore, Joyce
Object Type:
Newspaper
System:
The Portal to Texas History
Hudspeth County Herald and Dell Valley Review (Dell City, Tex.), Vol. 11, No. 38, Ed. 1 Friday, May 26, 1967
Weekly newspaper from Dell City, Texas that includes local, state, and national news along with advertising.
Date:
May 26, 1967
Creator:
Addington, Dianne; Brown, Julia & Gilmore, Joyce
Object Type:
Newspaper
System:
The Portal to Texas History
Hudspeth County Herald and Dell Valley Review (Dell City, Tex.), Vol. 11, No. 38, Ed. 1 Friday, May 26, 1967
Weekly newspaper from Dell City, Texas that includes local, state, and national news along with advertising.
Date:
May 26, 1967
Creator:
Addington, Dianne; Brown, Julia & Gilmore, Joyce
Object Type:
Newspaper
System:
The Portal to Texas History
Attitudes Toward Increased Government Control of Land Use
This investigation is concerned with perceived detrimental aspects of land use and the desirability of extending government participation in land use goals. Interviews with 179 persons were conducted. The data reveal a possible direct relationship between social class and the acceptance of land use and economic controls. The project endorses the following proposals: Local regulations should require housing developers to provide the streets and utilities and to dedicate land for parks and schools. Taxation should be used as a regulatory tool for the attainment of public policy objectives. A federal commission is needed to encourage comprehensive land management programs. It is also suggested that future land management questionnaires should use random samples and ask questions about specific land use problems.
Date:
May 1975
Creator:
Adeler, Harold C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Development and Contributions of the Department of Adult Education, University of Ibadan, Nigeria, to Adult Education in Nigeria: 1945- 1980
This study examined the historical development of the University of Ibadan in Nigeria and its contributions to adult education both in Nigeria and in other African nations. This was aimed at providing up-to-date insight into the department's contributions to the development of adult education in Nigeria and in other African nations. Specifically, this study examined the department's founders and their goals, the department's management structure, its relationship with other adult education agencies in Nigeria and in Africa, its programs and services, and the participants in these. This study reveals that the department's founders were both British and Nigerian politicians, educators, and humanitarians. They were concerned with eradicating illiteracy, preparing adults for democratic roles, and improving the economic well-being of these adults. The department does not have a consistent pattern of management. The selection of its leadership is usually based on seniority and academic merits. The department initially relied on donations and on the revenues from the local, state, and federal governments of Nigeria to operate. It now relies on those from the profit from its services to the public and on those from Nigeria's state and federal governments. The department interacts with other departments of the university and with other …
Date:
May 1987
Creator:
Adeniji, Olufemi O. (Olufemi Ogunruku)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Magnetron Sputtering of Transition Metal Oxynitrides and Their Characterization with Auger Electron Spectroscopy and X-ray Photoelectron Spectroscopy
Transition metal oxynitrides are of growing interest for their use as electrocatalyst for nitrogen reduction reaction. The metals in the oxynitride used for catalytic process are stabilized in intermediate state for effective activation of nitrogen. Therefore, studying the interaction of metal oxynitrides films to ambient exposure is necessary. Here, sputter deposited vanadium oxynitride is compared to cobalt oxynitride using insitu Auger electron spectroscopy (AES), ex situ X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and scanning electron microscopy (SEM). After deposition in Ar/N2 environment, in situ AES spectra indicate that film is vanadium oxynitride despite oxygen is not the reactive gas. In contrast, in situ AES indicate film is pure cobalt nitride at the same base pressure and deposition condition (as vanadium). For ambient exposure, in situ AES indicate the incorporation of oxygen in the cobalt nitride film to form cobalt oxynitride. Ex situ XPS indicate both films get more oxidized but uniformly distributed as there is only slight difference in grazing and normal emission XPS. XRD and SEM also indicate how homogeneously distributed both films are. These finding confirms how important it is that transition metal centers are kept in intermediate oxidation state for the activation of nitrogen bond.
Date:
May 2023
Creator:
Adesope, Qasim Adewale
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Analysis of the Need for Human Resource Development in Nigeria
The present study was concerned with seeking the opinions of Nigerian employers, Nigerians studying in the United States, and those studying in Nigeria concerning the need for human resource development in Nigeria. Data were collected through questionnaires mailed to selected Nigerian employers and to Nigerian students studying at various United States college campuses and at Nigerian university campuses. Problems of unemployment and critical shortages of skilled manpower continue to be rampant in Nigeria. The present investigation, through an analysis of questionnaire responses, seems to support the impression that little is really being done by Nigerian organization to upgrade and strengthen personnel talent in a planned and organized way. Most companies have no central long-range goal to guide their manpower development efforts. Much more time, effort, and expense are likely being devoted to the introduction of new operating systems or pieces of equipment than to the improvement of people.
Date:
May 1975
Creator:
Adewuyi, Joseph Ajibade
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Solvent Effects and Bioconcentration Patterns of Antimicrobial Compounds in Wetland Plants
This study looked at effects of organic solvents dimethylsulfoxide, dimethylformamide and acetone at 0.01%, 0.05% and 0.1% concentration on germination and seedling development wetland plants. Even at 0.01% level, all solvents affected some aspect of seed germination or seedling growth. Acetone at 0.01% was least toxic. Root morphological characteristics were most sensitive compared to shoot morphological characteristics. This study also looked at bioconcentration patterns of antimicrobial compounds triclosan, triclocarban and methyl-triclosan in wetland plants exposed to Denton Municipal Waste Water Treatment Plant effluent. Bioconcentration patterns of antimicrobial compounds varied among species within groups as well as within organs of species. The highest triclocarban, triclosan and methyltriclosan concentration were in shoot of N. guadalupensis, root of N. lutea and in shoots of P. nodous respectively.
Date:
May 2011
Creator:
Adhikari, Sajag
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Information Content of Non-GAAP Earnings of Cross-Listed Companies
To supplement earnings reported under generally accepted accounting principles (GAAP), public companies often voluntarily report alternative measures of earnings called non-GAAP earnings (NGE). These companies assert that NGE exclude the effect of non-recurring transactions, thereby helping users of financial information to better assess the company's past performance and prospects. Because NGE measures are not well defined, managers can exploit the inherent discretion in calculating NGE to mislead users. Prior studies provide arguments and evidence on the informative as well as opportunistic use of NGE. However, the studies have examined the characteristics and informativeness of NGE with a focus on U.S. companies. The results of studies that consider the NGE disclosure by U.S. companies may not be generalizable to the cross-listed companies because foreign financial reporting standards are different from the U.S. GAAP. Further, prior studies report a difference in earnings quality of U.S. firms and cross-listed firms, which can also result in a difference in the informativeness of their NGE. To fill this gap in literature, I examine whether the informativeness of NGE of cross-listed companies is different from that of U.S. companies. This study contributes to the debate on the informativeness of NGE. It provides evidence that in general, …
Date:
May 2018
Creator:
Adhikari, Subash
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Status and Challenges of Online Distance Education Programs in Post-Secondary Institutions in Ghana
The purpose of this study was to identify the status and challenges of online distance education programs in post-secondary institutions in Ghana. This study was a replication of a similar study conducted in Kenya in 2009, at the University of Nairobi and Kenyatta University. This present study was conducted with an online survey using Google survey assessment. The survey requested responses from six post-secondary institutions in Ghana. Out of a total of 450 projected student responses, 309 responses were received with a 69% participation rate. A total of 14 responses were received for instructors out of a projected 30 resulting in 47% participation rate. And for administrators, 8 responses were received out of a projected 12 resulting in a 67% participation rate. Overall the study revealed that Ghana post-secondary institutions have established and incorporated online distance education into their programs, offering both online and blended courses. Some of these institutions established regional centers across the country and incorporated foreign instructors into their programs. The survey also revealed that students were satisfied with the overall online distance education program in their institutions which included the level of instruction, feedback and evaluation. However, there were still challenges revealed from the study that …
Date:
May 2017
Creator:
Adjabeng, Stanley
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effect of Task Appropriateness, Social Comparison, and Feedback on Female Goals, Performance, and Self-Confidence with a Motor Task
Lenney (1977) concluded that achievement gender differences were predicted by females' lower self confidence and expectancies in competitive situations, identifying three variables that mediated female self confidence in achievement situations, (1) task appropriateness. (2) social comparison, and (3) feedback. The present study manipulated all three mediating variables with 240 undergraduate 18-25 year old female subjects with the pursuit rotor task that requires tracking a moving (40 rpm's) white light with a hand-held stylus for 60 seconds. Response measurement was based upon time on target. Subjects were tested over five trials while setting goals for each trial. Females were randomly assigned to a male appropriate, female appropriate, or gender neutral task condition, a competition or alone condition, and to one of four feedback conditions (no feedback, feedback about own performance only, feedback about own performance that provided the perception that subject was performing better than an opponent and/or average on each trial, or feedback about own performance that provided the perception that subject was performing poorer than an opponent and/or average on each of the five trials). Results from the 2 (social comparison) X 3 (task appropriateness) X 4 (feedback) ANOVA were contradictory to previous findings (Corbin, 1981; Petruzzello & Corbin, …
Date:
May 1990
Creator:
Adler, William P.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library