A research question that is of interest across many disciplines is whether and how relationships in a network are related to the attributes of the nodes of the network. In this dissertation, we propose two joint frameworks for modeling the relationship between the network and attributes. In the joint latent space model in Chapter 2, shared latent…

Queering' questions, unlearns, disrupts, and transforms approaches, expectations, and realities. Futures are time and change. The approach I have designed to operationalize Queering and futures, or Queering futures, is the Queering Futures Framework (QFF). The Queering Futures Framework (QFF) is a brand-new transdisciplinary research framework…

The nonequivalent-groups anchor-test (NEAT) data-collection design is commonly used in large-scale assessments. Under this design, different test groups take different test forms. Each test form has its own unique items and all test forms share a set of common items. If item response theory (IRT) models are applied to analyze the test data, the…

In Huggins-Manley & Han (2017), it was shown that WLSMV global model fit indices used in structural equating modeling practice are sensitive to person parameter estimate RMSE and item difficulty parameter estimate RMSE that results from local dependence in 2-PL IRT models, particularly when conditioning on number of test items and sample size.…

The purpose of this quantitative causal-comparative research was to assess the effect of classroom structure (single-gender vs. coeducational) on students' performance in mathematics in grades 3 through 5 at three large, urban elementary schools in Las Vegas, Nevada, while controlling for student gender and ethnicity. This study was theoretically…

This quantitative correlation survey study investigated the relationship between teachers' perceptions of the effectiveness of school principals as instructional leaders in professional learning communities (PLCs) and self-efficacy beliefs of teachers. Social Cognitive Theory, self-efficacy concept, and Adult Learning Theory were at the core of…

Sexually transmitted diseases (STD) are preventable conditions for which treatment failure (specifically in gonorrhea) is becoming problematic. U.S. young adults (20-29 years) have high rates of STD incidence and prevention of these diseases, but reaching them to provide primary prevention educations is challenging due to low perceived…

Measurement invariance is crucial for an effective and valid measure of a construct. Invariance holds when the latent trait varies consistently across subgroups; in other words, the mean differences among subgroups are only due to true latent ability differences. Differential item functioning (DIF) occurs when measurement invariance is violated.…

While districts and schools continue to place more emphasis on personalized instruction and tiers of literacy interventions, more students are continuing to reach middle school without the ability to read on grade level. Much of the emphasis on the attainment of literacy skills occurs in the elementary grades. As a result, middle grades' literacy…

While districts and schools continue to place more emphasis on personalized instruction and tiers of literacy interventions, more students are continuing to reach middle school without the ability to read on grade level. Much of the emphasis on the attainment of literacy skills occurs in the elementary grades. As a result, middle grades' literacy…

First-generation students, who represent more than 40% of entering college freshmen, have lower academic achievement and struggle to persist compared to their continuing-generation peers. Although previous studies have repeatedly shown a deficit model for first-generation students, there is still a lack of clear understanding about the…

This dissertation aims to investigate the effect size measures of differential item functioning (DIF) detection in the context of cognitive diagnostic models (CDMs). A variety of DIF detection techniques have been developed in the context of CDMs. However, most of the DIF detection procedures focus on the null hypothesis significance test. Few…

The COVID-19 pandemic provided an opportunity to explore how different modes of learning may impact student achievement. Little research has been conducted regarding how the pandemic may have affected students' reading skills. The problem addressed in this study was that the effects of varying and inconsistent learning environments for Title I K-2…

The purpose of this study was to determine if using a multistage approach for the empirical selection of anchor items would lead to more accurate DIF detection rates than the anchor selection methods proposed by Kopf, Zeileis, & Strobl (2015b). A simulation study was conducted in which the sample size, percentage of DIF, and balance of DIF…

Intention to misuse information systems (IS) is a growing problem where employees of organizations are contributors to successful IS security breaches. Misuse of IS resources in organizations in the healthcare and pharmaceutical industries can affect patient care. Researchers investigated factors that influence changes in behavior regarding…