We examine the accuracy of p values obtained using the asymptotic mean and variance (MV) correction to the distribution of the sample standardized root mean squared residual (SRMR) proposed by Maydeu-Olivares to assess the exact fit of SEM models. In a simulation study, we found that under normality, the MV-corrected SRMR statistic provides…

In recent years, the health sector has faced increasingly important challenges. Due to the economic crisis and competitions, hospitals are facing many issues affecting the supply chain, such as budget cuts or lack thereof as well as insufficient human resources. Although essential for an excellent service, logistics take up a considerable part of…

This article details the creation and features of the Aspiring Principals Program, an intentional, mutually beneficial partnership between the University of North Carolina at Charlotte and Charlotte-Mecklenburg Schools.

This book illuminates the lived experience of a group of primary school children engaged in virtual world play during a year-long after-school club. Shaped by post-structuralist theory and New Literacy Studies, it outlines a playful, participatory and emergent methodological approach, referred to as 'rhizomic ethnography'. This 'hybrid' text uses…

The use of Extended Reality technologies in education, and especially in language learning, has attracted the interest of language experts for the last 15 years. However, the recent technological progress as well as the simultaneous dramatic reduction of the cost of the necessary hardware has led to an impressive growth of the XR market, creating,…

Inexperienced and poorly trained Air Traffic Control Specialists (ATCSs) contribute to aircraft accidents and other serious aviation mishaps, which negatively impact human safety, the environment, government and personal property, and the efficient and smooth operation of the National Airspace System (NAS). The Federal Aviation Administration…

The purpose of this quantitative correlational design dissertation was to determine if, and to what extent, a relationship existed between Advanced Joint Terminal Attack Control Training System (AJTS) users' perceived usefulness, perceived ease of use, and intention to use AJTS. AJTS is a virtual reality simulation-based training system. Three…

Best practices for video-assisted debriefing (VAD) technology use cannot be developed because the characteristics of VAD that lead to successful debriefing have not been identified. The purpose of this qualitative, multiple-case study with embedded units sought to employ observation, participant interviews, and documentation review in exploring…

Practice is a vital component of teacher preparation. Mixed Reality Simulation (MRS) is a technology that provides teacher candidates opportunities for practice and rehearsal. As of 2021, MRS can be found in just 52 of the estimated 1,200 teacher preparation programs nationwide. Within the Diffusion of Innovation theory, these programs are…

My dissertation examined the effect of adaptive prompts in virtual reality (VR) based social skills training on social skills of children with autism spectrum disorder (ASD). In my dissertation, adaptive prompts refer to an instructional technique to enhance social skill performance of children with ASD considering their emotional states. Despite…

Virtual surgical simulation has not been used as a measure of success in surgical technology course completion. The purpose of this study was to determine to what degree virtual surgical simulation contributed to student success, as measured by course completion grades in two southeast Pennsylvania surgical technology programs. Kolb's experiential…

Meta-analyses are an important tool within systematic reviews to estimate the overall effect size and its confidence interval for an outcome of interest. If heterogeneity between the results of the relevant studies is anticipated, then a random-effects model is often preferred for analysis. In this model, a prediction interval for the true effect…

In this study, it is aimed to investigate the effects of various factors on the performance of the methods used in the determination of differential item functioning (DIF) in the DINA model included in the Cognitive Diagnosis Models. The current study is limited with Logistic Regression and Wald test methods which were used to determine the…

Methods to generate random correlation matrices have been proposed in the literature, but very few instances exist where these correlation matrices are structured or where the statistical properties of the algorithms are known. By relying on the tetrad relation discovered by Spearman and the properties of the beta distribution, an algorithm is…

A formula is derived for a 'two-dice horse race', in which two ordinary dice are thrown repeatedly and each time the sum of the scores determines which horse (numbered 2 to 12) moves forward one space. This paper answers a question posed in a former "Teaching Statistics" article, and demonstrates the value of simulation.