Access
Partner
Collection
Texas Digital Newspaper Program
1,121
UNT Theses and Dissertations
450
The Greensheet
326
Denton County Newspapers Collection
306
UNT Scholarly Works
128
The Monitor
104
Copperas Cove Leader Press
104
Texas Jewish Herald /Jewish Herald /Jewish Herald-Voice
52
Texas Jewish Post
52
Mount Vernon Optic Herald
52
23 More
Degree Department
Digital Projects Unit
108
Libraries
64
College of Music
46
Department of Psychology
37
Department of Biological Sciences
33
Department of Teacher Education and Administration
32
Department of Computer Science and Engineering
21
Department of History
21
Department of Counseling and Higher Education
18
Department of Learning Technologies
17
55 More
Degree Discipline
Degree Level
Country
States
Year
Month
Language
1,812 Matching Results
Results open in a new window/tab.
Comparison of Learning Performance Between Students Who Do and Students Who Do Not Use Mobile Technology-based Activities
This study examined if using mobile technology-based activities would increase student performance in biological science courses. The study compared two groups of students in lectures and labs. Each group had about 20 students. The mobile group had mobile technology-based activities and the non-mobile group received conventional instruction. The mobile group used links to the website, or a QR Code to access the activities. The non-mobile group had handouts and worksheets over the same content. The research methodology for this study was mixed method. The study was a quasi-experimental design that used instruction method as the independent variable between two groups. The study used formative and summative assessment to compare the performance of the mobile group and non-mobile group in lecture and lab. The student in the mobile group had statistically significantly higher lab exam scores than students in the non-mobile group. Additionally, Students were surveyed about their performance expectancy and effort expectancy using mobile technology for learning, and they were asked about their self-management of learning. Analysis indicated that both groups had similar performance and effort expectancy using mobile technology for learning, but the two groups differed on self-management of learning responses to the survey. Focus groups from the mobile …
Date:
August 2013
Creator:
Stowe, William A., Jr.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Comparison of Picture to Word Training and Word to Word Training on Native English Speaking College Students’ Acquisition of Italian Vocabulary
The current study assessed the effects of two teaching stimulus presentations, i.e. picture to word and word to word, used to teach second language vocabulary to college students. It also evaluated the emergence of untaught relations when picture to word and word to word were used separately as a teaching strategy. The findings showed picture to word training resulted in more untaught relations. Several aspects such time allotted for online quizzes, experimental and teaching arrangements and vocabulary complexity were suggested for future research.
Date:
December 2013
Creator:
Vo, Phuong Vi
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Comparison of Three Teacher Evaluation Methods and the Impact on College Readiness
Much attention in recent years has gone to the evaluation of teacher effectiveness, and some scholars have developed conceptual models to evaluate the effectiveness. The purpose of this study was to compare three teacher evaluation models – the Texas Professional Development Appraisal System (PDAS), the teacher index model (TI), and the value-added model (VAM) – to determine teacher effectiveness using student demographic and longitudinal academic data. Predictive data from students included economic disadvantage status, ethnicity, gender, participation in special education, limited English proficiency, and performance on Texas Assessment of Knowledge and Skills (TAKS). Data serving as dependent variables were scores from Scholastic Aptitude Test (SAT®) verbal/critical reasoning and mathematics. These data came from 1,714 students who were 9.7% Hispanic, 9.2% African American, and 81.2% White. The models were tested for 64 English language arts teachers and 109 mathematics teachers, using student examination scores from the SAT® verbal/critical reasoning and mathematics. The data were aligned for specific faculty members and the students whom they taught during the year of the study. The results of the study indicated that the TI and VAM explained approximately 42% of the variance in college entrance exam scores from the SAT® verbal/critical reasoning and mathematics (R2 …
Date:
December 2013
Creator:
Smalskas, Tamy L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Comprehensive Modeling Framework for Airborne Mobility
Mobility models serve as the foundation for evaluating and designing airborne networks. Due to the significant impact of mobility models on the network performance, mobility models for airborne networks (ANs) must realistically capture the attributes of ANs. In this paper, I develop a comprehensive modeling framework for ANs. The work I have done is concluded as the following three parts. First, I perform a comprehensive and comparative analysis of AN mobility models and evaluate the models based on several metrics: 1) networking performance, 2) ability to capture the mobility attributes of ANs, 3) randomness levels and 4) associated applications. Second, I develop two 3D mobility models and realistic boundary models. The mobility models follow physical laws behind aircraft maneuvering and therefore capture the characteristics of aircraft trajectories. Third, I suggest an estimation procedure to extract parameters in one of the models that I developed from real flight test data. The good match between the estimated trajectories and real flight trajectories also validate the suitability of the model. The mobility models and the estimation procedure lead to the creation of “realistic” simulation and evaluation environment for airborne networks.
Date:
December 2013
Creator:
Xie, Junfei
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Computational Studies of Inorganic Systems with a Multiscale Modeling Approach: From Atomistic to Continuum Scale
Multiscale modeling is an effective tool for integrating different computational methods, creating a way of modeling diverse chemical and physical phenomena. Presented are studies on a variety of chemical problems at different computational scales and also the combination of different computational methods to study a single phenomenon. The methods used encompass density functional theory (DFT), molecular dynamics (MD) simulations and finite element analysis (FEA). The DFT studies were conducted both on the molecular level and using plane-wave methods. The particular topics studied using DFT are the rational catalyst design of complexes for C—H bond activation, oxidation of nickel surfaces and the calculation of interaction properties of carbon dioxide containing systems directed towards carbon dioxide sequestration studies. Second and third row (typically precious metals) transition metal complexes are known to possess certain electronic features that define their structure and reactivity, and which are usually not observed in their first-row (base metal) congeners. Can these electronic features be conferred onto first-row transition metals with the aid of non-innocent and/or very high-field ligands? Using DFT, the impact of these electronic features upon methane C—H bond activation was modeled using the dipyridylazaallyl (smif) supporting ligand for late, first-row transition metal (M) imide, oxo and …
Date:
August 2013
Creator:
Olatunji-Ojo, Olayinka A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Confirming the Constructs of the Adlerian Personality Priority Assessment (Appa)
The primary purpose of this study was to confirm the four-factor structure of the 30-item Adlerian Personality Priority Assessment (APPA) using a split-sample cross-validation confirmatory factor analysis (CFA). The APPA is an assessment, grounded in Adlerian theory, used to conceptualize clients based on the four personality priorities most commonly used in the Adlerian literature: superiority, pleasing, control, and comfort. The secondary purpose of this study was to provide evidence for discriminant validity, examine predictive qualities of demographics, and explore the prevalence of the four priorities across demographics. For the cross validation CFA, I randomly divided the sample, 1210 undergraduates, at a large public research university (53% Caucasian, 13.1% Hispanic/Latino(a), 21.4% African American, 5.4% American Indian, and 5.8% biracial; mean age =19.8; 58.9% females), into two equal subsamples. I used Subsample 1 (n = 605) to conduct the initial CFA. I held out Subsample 2 (n = 605) to test any possible model changes resulting from Subsample 1 results and to provide further confirmation of the APPA's construct validity. Findings from the split-sample cross-validation CFA confirmed the four-factor structure of the APPA and provided support for the factorial/structure validity of the APPA's scores. Results also present initial evidence of discriminant validity …
Date:
August 2013
Creator:
Dillman Taylor, Dalena
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Confirming the Constructs of the Child Interpersonal Relationship and Attitudes Assessment
The purpose of this study was to confirm the four-factor model of the Child Interpersonal Relationship and Attitudes Assessment (CIRAA) in order to establish the instrument’s factor/structure validity using a sample different than that used in instrument development. The CIRAA was the first parent-report instrument based on child-centered theory and designed to measure play therapy outcomes. Its four factors are Self-Regulation (formerly Self-Control), Interpersonal Relationships, Coping Skills, and Internal Locus of Evaluation. For this study, the CIRAA was administered to 206 parents; their children were 75 females and 131 males aged 3 to 10 years old. The distributions of children’s genders and ages in this study were similar to the distributions of the sample used to develop the CIRAA. Based on confirmatory factor analysis results of overall goodness-of-fit indices; localized areas of strain; and interpretability, size, and statistical significance (p < .001) of the model's parameter estimate, the four-factor model of the CIRAA was confirmed with both theoretical and empirical support. Internal consistency reliability for the subscales and total score were acceptable, with an overall reliability coefficient of .928. A medium negative correlation (r = -.417, n = 47, p < .01) was found between the CIRAA total scores and …
Date:
August 2013
Creator:
Chung, Chiao-Feng
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Congruence, Unconditional Positive Regard, and Empathic Understanding in Child-centered Play Therapy
The purpose of this study was to explore how the therapist-provided conditions of congruence, unconditional positive regard, and empathic understanding were experienced and conveyed in child-centered play therapy (CCPT). Although the therapist-provided conditions are considered essential to the therapeutic process in CCPT, a gap exists between child-centered theory and empirical exploration of the process and dynamics of these relational variables in CCPT. Due to the limited research in this area, a grounded theory approach was utilized to explore how the three variables emerge in CCPT. Participants included four advanced doctoral students, all Caucasian females with extensive training in CCPT, and 12 children ranging from 4 to 8 years of age receiving weekly, individual CCPT. One individual CCPT session was observed and video-recorded for each therapist-child dyad (n = 12). Following each observation, play therapists were interviewed regarding the observed play session (n = 12). During each interview, the researcher and therapist watched the recorded play session in its entirety and discussed noteworthy interactions between the child and therapist. The video-recorded play therapy sessions and therapist interviews were analyzed using a multiphasic, constant comparative method. Results of the analysis included a process-model of the therapist-provided conditions in CCPT, examples of play …
Date:
August 2013
Creator:
Jayne, Kimberly M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Connecting the Circuit: Analyzing Jurors' Cognitive Gaps and Damage Awards in Patent Infringement Trials
Patent litigation is notorious for the technicality of evidence and the rhetoric of experts. Citizens selected to serve on the jury have no specialized training and have rarely been exposed to the technology or the patent process. This study provides insight into the field of jury decision-making in complex patent cases by analyzing the cognitive gaps and the tactics used by jurors to minimize them. Additionally, the study examines the justifications for the damage awards jurors provide. This analysis focused on jurors engaged in mock trial patent deliberations. The story model and sensemaking theory serve as the theoretical framework of this research and provide a structure for support and a lens for analysis. The results indicate that jurors rely on three distinct and dichotomous topologies when navigating cognitive gaps. Searching for answers either individually or as a group, relying on lists or stories, and turning to facts or emotions, jurors navigate through their uncertainty. Through the line-by-line analysis of mock jury transcriptions, three continuums regarding damage justifications emerged. Jury members found themselves navigating uncertainty versus certainty, rationality versus irrationality, and facts versus emotions. The theoretical implications broaden the story model to include cognitive gaps in all phases and increase the …
Date:
May 2013
Creator:
Drescher, L. Hailey
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Consistency, Consolidation, and Cognition in Autobiographical Memories: a Flashbulb Memory Approach
Flashbulb memories are highly vivid and long-lasting memories for events that are emotionally significant and personally important. These memories are held in very high confidence in accuracy over an extended period. In particular, individuals believe that they can remember the personal details surrounding the event such as where they were and what they were doing at the time the event occurred. Evidence from research, however, indicates that this may not be the case. The study of flashbulb memories has typically been confined to negative events such as September 11, 2001. In the current study, we employ the methods of Talarico and Rubin (2003) to investigate flashbulb memory formation to a positive event. The event is the assassination of Osama bin Laden, which resonated as a highly positive event for many Americans evidenced by the thousands of people flooding the streets of Washington, D.C. and New York City to celebrate. We examined various memory properties over a one-year period, including vividness, rehearsal, belief in accuracy, and consistency. Results confirm the formation of flashbulb memories to the assassination event, but results did not support many of the proposed hypotheses. Some differences were found for different testing groups (i.e., immediate versus one week …
Date:
May 2013
Creator:
Kraha, Amanda
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Contribution of Hurricane Ike Storm Surge Sedimentation to Long-term Aggradation of Coastal Marshes in Southeastern Texas and Southwestern Louisiana
Coastal marshes and wetlands are vital natural resources that offer habitats for plants and animals, serve as ecological filtration for soil and water pollutants, and act as protection for coastlines. Fishing, both commercial and sport, has a large economic impact in the study area – the Gulf Coast between Galveston Bay, TX and Oak Grove, LA. The objective of this research was to determine the contribution of Hurricane Ike storm surge sedimentation to long-term marsh aggradation in Texas and Louisiana coastal marshes. The research hypothesized that Hurricane Ike’s storm surge deposit would be equal to decades and possibly even a century’s worth of the average annual non-storm sedimentation. A quantitative field study was performed. The storm surge deposit was examined in a series of 15 transects covering approximately 180 km east of Hurricane Ike’s landfall. Nine of the 15 transects were re-surveyed a year after the initial measurement to assess preservation of the deposit. The results demonstrate that Hurricane Ike contributed between 10 to 135 years’ worth of sediment to coastal marshes along the coasts of Texas and Louisiana, and the sediment deposits have been preserved for over two years.
Date:
August 2013
Creator:
Denlinger, Emily E.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Convergent Validity of Variables Residualized By a Single Covariate: the Role of Correlated Error in Populations and Samples
This study examined the bias and precision of four residualized variable validity estimates (C0, C1, C2, C3) across a number of study conditions. Validity estimates that considered measurement error, correlations among error scores, and correlations between error scores and true scores (C3) performed the best, yielding no estimates that were practically significantly different than their respective population parameters, across study conditions. Validity estimates that considered measurement error and correlations among error scores (C2) did a good job in yielding unbiased, valid, and precise results. Only in a select number of study conditions were C2 estimates unable to be computed or produced results that had sufficient variance to affect interpretation of results. Validity estimates based on observed scores (C0) fared well in producing valid, precise, and unbiased results. Validity estimates based on observed scores that were only corrected for measurement error (C1) performed the worst. Not only did they not reliably produce estimates even when the level of modeled correlated error was low, C1 produced values higher than the theoretical limit of 1.0 across a number of study conditions. Estimates based on C1 also produced the greatest number of conditions that were practically significantly different than their population parameters.
Date:
May 2013
Creator:
Nimon, Kim
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Cooperation-induced Criticality in Neural Networks
The human brain is considered to be the most complex and powerful information-processing device in the known universe. The fundamental concepts behind the physics of complex systems motivate scientists to investigate the human brain as a collective property emerging from the interaction of thousand agents. In this dissertation, I investigate the emergence of cooperation-induced properties in a system of interacting units. I demonstrate that the neural network of my research generates a series of properties such as avalanche distribution in size and duration coinciding with the experimental results on neural networks both in vivo and in vitro. Focusing attention on temporal complexity and fractal index of the system, I discuss how to define an order parameter and phase transition. Criticality is assumed to correspond to the emergence of temporal complexity, interpreted as a manifestation of non-Poisson renewal dynamics. In addition, I study the transmission of information between two networks to confirm the criticality and discuss how the network topology changes over time in the light of Hebbian learning.
Date:
August 2013
Creator:
Zare, Marzieh
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Copperas Cove Leader-Press (Copperas Cove, Tex.), No. [65], Ed. 1 Friday, May 17, 2013
Semi-weekly newspaper from Copperas Cove, Texas that includes local, state and national news along with advertising.
Date:
May 17, 2013
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Copperas Cove Leader-Press (Copperas Cove, Tex.), No. [94], Ed. 1 Tuesday, August 27, 2013
Semi-weekly newspaper from Copperas Cove, Texas that includes local, state and national news along with advertising.
Date:
August 27, 2013
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Copperas Cove Leader-Press (Copperas Cove, Tex.), Vol. 118, No. 26, Ed. 1 Tuesday, January 1, 2013
Semi-weekly newspaper from Copperas Cove, Texas that includes local, state and national news along with advertising.
Date:
January 1, 2013
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Copperas Cove Leader-Press (Copperas Cove, Tex.), Vol. 118, No. 27, Ed. 1 Friday, January 4, 2013
Semi-weekly newspaper from Copperas Cove, Texas that includes local, state and national news along with advertising.
Date:
January 4, 2013
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Copperas Cove Leader-Press (Copperas Cove, Tex.), Vol. 118, No. 28, Ed. 1 Tuesday, January 8, 2013
Semi-weekly newspaper from Copperas Cove, Texas that includes local, state and national news along with advertising.
Date:
January 8, 2013
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Copperas Cove Leader-Press (Copperas Cove, Tex.), Vol. 118, No. 29, Ed. 1 Friday, January 11, 2013
Semi-weekly newspaper from Copperas Cove, Texas that includes local, state and national news along with advertising.
Date:
January 11, 2013
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Copperas Cove Leader-Press (Copperas Cove, Tex.), Vol. 118, No. 30, Ed. 1 Tuesday, January 15, 2013
Semi-weekly newspaper from Copperas Cove, Texas that includes local, state and national news along with advertising.
Date:
January 15, 2013
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Copperas Cove Leader-Press (Copperas Cove, Tex.), Vol. 118, No. 31, Ed. 1 Friday, January 18, 2013
Semi-weekly newspaper from Copperas Cove, Texas that includes local, state and national news along with advertising.
Date:
January 18, 2013
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Copperas Cove Leader-Press (Copperas Cove, Tex.), Vol. 118, No. 32, Ed. 1 Tuesday, January 22, 2013
Semi-weekly newspaper from Copperas Cove, Texas that includes local, state and national news along with advertising.
Date:
January 22, 2013
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Copperas Cove Leader-Press (Copperas Cove, Tex.), Vol. 118, No. 33, Ed. 1 Friday, January 25, 2013
Semi-weekly newspaper from Copperas Cove, Texas that includes local, state and national news along with advertising.
Date:
January 25, 2013
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Copperas Cove Leader-Press (Copperas Cove, Tex.), Vol. 118, No. 34, Ed. 1 Tuesday, January 29, 2013
Semi-weekly newspaper from Copperas Cove, Texas that includes local, state and national news along with advertising.
Date:
January 29, 2013
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History