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in creator/contributor: "Hull, Darrell M."  
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open access

Determination of the Optimal Number of Strata for Bias Reduction in Propensity Score Matching.

Description: Previous research implementing stratification on the propensity score has generally relied on using five strata, based on prior theoretical groundwork and minimal empirical evidence as to the suitability of quintiles to adequately reduce bias in all cases and across all sample sizes. This study investigates bias reduction across varying number of strata and sample sizes via a large-scale simulation to determine the adequacy of quintiles for bias reduction under all conditions. Sample sizes rang… more
Date: May 2010
Creator: Akers, Allen
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Implementing the Difference in Differences (Dd) Estimator in Observational Education Studies: Evaluating the Effects of Small, Guided Reading Instruction for English Language Learners

Description: The present study provides an example of implementing the difference in differences (DD) estimator for a two-group, pretest-posttest design with K-12 educational intervention data. The goal is to explore the basis for causal inference via Rubin's potential outcomes framework. The DD method is introduced to educational researchers, as it is seldom implemented in educational research. DD analytic methods' mathematical formulae and assumptions are explored to understand the opportunity and the cha… more
Date: July 2023
Creator: Sebastian, Princy
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Effect Size Reporting and Interpreting Practices in Published Higher Education Journal Articles

Description: Data-driven decision making is an integral part of higher education and it needs to be rooted in strong methodological and statistical practices. Key practices include the use and interpretation of effect sizes as well as a correct understanding of null hypothesis significance testing (NHST). Therefore, effect size reporting and interpreting practices in higher education journal articles represent an important area of inquiry. This study examined effect size reporting and interpretation practi… more
Date: August 2016
Creator: Stafford, Mehary T.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Stratified item selection and exposure control in unidimensional adaptive testing in the presence of two-dimensional data.

Description: It is not uncommon to use unidimensional item response theory (IRT) models to estimate ability in multidimensional data. Therefore it is important to understand the implications of summarizing multiple dimensions of ability into a single parameter estimate, especially if effects are confounded when applied to computerized adaptive testing (CAT). Previous studies have investigated the effects of different IRT models and ability estimators by manipulating the relationships between item and person… more
Date: August 2009
Creator: Kalinowski, Kevin E.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Structural Validity and Item Functioning of the LoTi Digital-Age Survey.

Description: The present study examined the structural construct validity of the LoTi Digital-Age Survey, a measure of teacher instructional practices with technology in the classroom. Teacher responses (N = 2840) from across the United States were used to assess factor structure of the instrument using both exploratory and confirmatory analyses. Parallel analysis suggests retaining a five-factor solution compared to the MAP test that suggests retaining a three-factor solution. Both analyses (EFA and CFA) i… more
Date: May 2011
Creator: Mehta, Vandhana
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Is It More Advantageous to Administer Libqual+® Lite Over Libqual+®? an Analysis of Confidence Intervals, Root Mean Square Errors, and Bias

Description: The Association of Research Libraries (ARL) provides an option for librarians to administer a combination of LibQUAL+® and LibQUAL+® Lite to measure users' perceptions of library service quality. LibQUAL+® Lite is a shorter version of LibQUAL+® that uses planned missing data in its design. The present study investigates the loss of information in commonly administered proportions of LibQUAL+® and LibQUAL+® Lite when compared to administering LibQUAL+® alone. Data from previous administrations o… more
Date: August 2013
Creator: Ponce, Hector F.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Eastern Work Ethic: Structural Validity, Measurement Invariance, and Generational Differences

Description: This present study examined the structural validity of a Chinese version of Multidimensional Work Ethic Profile (MWEP-C), using a large sample of Chinese parents and their young adult children (N = 1047). Confirmatory factor analysis (CFA) was applied to evaluate the model fit of sample data on three competing models using two randomly split stratified subsamples. Measurement invariance for these two generational respondents was checked using differential item functioning (DIF) analysis. The re… more
Date: May 2014
Creator: Chen, Danxia
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Selection Bias and Sensitivity as Moderators of Prekindergarten Age-Cutoff Regression Discontinuity Study Effects: A Meta-Analysis

Description: The age-cutoff regression discontinuity design (RDD) has emerged as one of the most rigorous quasi-experimental approaches to determining program effects of prekindergarten on literacy and numeracy outcomes for children at kindergarten entry. However, few pre-K meta-analyses have focused attention on validity threats. The current random-effects meta-regression tests the moderating effects of prominent threats to validity, selection bias and sensitivity, on impact estimates generated from age-cu… more
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Date: July 2023
Creator: Stewart, Genea K.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Spatial Ability, Motivation, and Attitude of Students as Related to Science Achievement

Description: Understanding student achievement in science is important as there is an increasing reliance of the U.S. economy on math, science, and technology-related fields despite the declining number of youth seeking college degrees and careers in math and science. A series of structural equation models were tested using the scores from a statewide science exam for 276 students from a suburban north Texas public school district at the end of their 5th grade year and the latent variables of spatial abilit… more
Date: May 2011
Creator: Bolen, Judy Ann
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Knowledge and Training in Autism Spectrum Disorders Among Special Education Administrators.

Description: A significant rise in the number of students with autism spectrum disorders (ASD) served in today's schools requires special education administrators to possess knowledge in this area. The purpose of this study was to determine the general knowledge of special education administrators concerning ASD and knowledge of educational programming, to explore their educational training and professional development experiences in ASD, to identify the training needs of special education administrators in… more
Date: December 2010
Creator: Hughes, Heather L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Stereotypical Science: Exploring High School Occupational Preferences for Science by Sex, Personality, and Cognitive Ability

Description: Circumscription and Compromise theory suggests self-concept and sex stereotype explain occupational preferences, including preferences for science, technology, engineering and mathematics (STEM). Support exists for sex differences between males and females in both science degrees and science careers. The main thrust of observed sex differences in science lies in the development of occupational interest, as it has been suggested females are encouraged away from science due to stereotypes and soc… more
Date: May 2016
Creator: Ferguson, Sarah Lynn
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Comparing Three Approaches for Handling a Fourth Level of Nesting Structure in Cluster-Randomized Trials

Description: This study compared 3 approaches for handling a fourth level of nesting structure when analyzing data from a cluster-randomized trial (CRT). CRTs can include 3 levels of nesting: repeated measures, individual, and cluster levels. However, above the cluster level, there may sometimes be an additional potentially important fourth level of nesting (e.g., schools, districts, etc., depending on the design) that is typically ignored in CRT data analysis. The current study examined the impact of ignor… more
Date: August 2017
Creator: Glaman, Ryan
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Cross-Cultural Adult Attachment, Assertiveness, Self-Conscious Emotions, and Psychological Symptoms

Description: Although the overall quantity of international research has increased, existent studies tend to adopt an instrument developed in one culture to use in the other, leading to measurement bias. In addition, previous cross-cultural research mainly focuses on comparisons between collectivist and individualistic backgrounds (e.g., American vs. Chinese) without considering the similarities and differences within the collectivist societies (e.g., China vs. Mexico). This dissertation project has two pur… more
Date: August 2020
Creator: Jin, Ling
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A Hierarchical Regression Analysis of the Relationship Between Blog Reading, Online Political Activity, and Voting During the 2008 Presidential Campaign

Description: The advent of the Internet has increased access to information and impacted many aspects of life, including politics. The present study utilized Pew Internet & American Life survey data from the November 2008 presidential election time period to investigate the degree to which political blog reading predicted online political discussion, online political participation, whether or not a person voted, and voting choice, over and above the predication that could be explained by demographic measure… more
Date: December 2010
Creator: Lewis, Mitzi
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Social Emotional Learning Competencies in Belize Children: Psychometric Validation Through Exploratory Structural Equation Modeling

Description: Article presents a study that demonstrates the application of Exploratory Structural Equation Modeling to existing measures through the investigation of structural validity and generalizability of the Social-Emotional and Character Development Scale with a large sample of children from schools in Belize. Using this newer factor analytic procedure, original factors are reconceptualized to better situate the Social Emotional Character Development Scales into the larger body of Social-Emotional Le… more
Date: February 9, 2022
Creator: Hinerman, Krystal M.; Hull, Darrell M.; Näslund-Hadley, Emma I. & Rafe, Mehri Mirzaei
Item Type: Refine your search to only Article
Partner: UNT College of Education
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