The quest for determining the degree of learning difficulty associated with different types of categories has been instrumental in our understanding of human categorization behavior and, more broadly, human generalization. For instance, we now know that the topological nature of the dimensions (e.g., whether these are integral or separable) that…

Models of statistical learning do not place constraints on the complexity of the memory structure that is formed during statistical learning, while empirical studies using the statistical learning task have only examined the formation of simple memory structures (e.g., two-way binding). On the contrary, the memory literature, using explicit memory…

This dissertation investigates the factors influencing the matriculation trends of former College Credit Plus (CCP) participants to host institutions in Ohio, utilizing Perna's (2006) College Choice Model as a framework. The study examines variables such as course modality, geographical proximity to the host institution, course load, and grade…

Purpose: Pupillary responses captured via pupillometry (measurement of pupillary dilation and constriction during the performance of a cognitive task) are psychophysiological indicators of cognitive effort, attention, arousal, and resource engagement. Pupillometry may be a promising tool for enhancing our understanding of the relationship between…

The transition to formal schooling is a large contextual change, which for many children in U.S. begins with the year of kindergarten. To better understand the challenges of this transition, the present study examines the extent to which children experience transition difficulties in five salient areas: making friends, following schedules, meeting…

Reading comprehension is an essential skill that all students must master for learning to happen. The complexity of academic texts requires research-based instruction in reading comprehension that goes beyond the basic literacy level. The tiered texts approach is an effective, systematic approach for teaching reading comprehension where a series…

Hundreds of thousands of K-12 children in the United States are enrolled in online K-12 virtual schools that consistently report poor academic outcomes. There is a need to assess how well instructors in a synchronous online environment present new material to learners in a way that best aligns with how the brain manages and integrates new…

This study explored the impact of attending an Inclusive STEM-focused High School (ISHS) by interviewing 30 students from ISHSs and matched comparison high schools 2 years after graduation. Interviewees were students who in 12th grade reported being first-generation college goers, strongly interest in a STEM career, and planning to go directly to…

Background: Over the past two decades, inclusive STEM (science, technology, engineering, and mathematics) high schools have emerged as one strategy for increasing and broadening participation in STEM majors and careers, particularly for currently underrepresented students in those fields. However, limited research has examined whether strategies…

Construct-irrelevant cognitive complexity of some items in the statewide grade-level assessments may impose performance barriers for students with disabilities who are ineligible for alternate assessments based on alternate achievement standards. This has spurred research into whether items can be modified to reduce complexity without affecting…

College graduation rates have been on the academic and political agenda. The United States graduation rate is 59%, however, 68% of nontraditional students do not graduate with baccalaureate degrees within the time frame of six years. Scholars are attributing the decreasing graduation rates to barriers encountered by nontraditional undergraduate…

It has long been argued that U.S. states' differential performance on nationwide assessments may reflect differences in students' opportunity to learn the tested content that is primarily due to variation in curricular content standards, rather than in instructional quality or educational investment. To quantify the effect of differences in…

Variation in test performance among examinees from different regions or national jurisdictions is often partially attributed to differences in the degree of content correspondence between local school or training program curricula, and the test of interest. This posited relationship between test-curriculum correspondence, or "alignment,"…

Seven excerpts of modern jazz piano improvisations were selected to represent a range of perceived complexities. Audio recordings of the excerpts were played for 27 listeners who were asked to indicate their level of enjoyment on 7-point scales. Indications of enjoyment followed an inverted-U when plotted against perceived complexity of the music.…

Reading is critical for scientific thinking. It is a foundation for many of the skills in which scientists and engineers must be proficient, such as conducting research, developing informed conjectures, and engaging in reasoned argument (NRC 2012). Yet, students frequently find science reading difficult, time-consuming, and frustrating. Strategies…