Bayesian Knowledge Tracing (BKT) is a commonly used approach for student modeling, and Long Short Term Memory (LSTM) is a versatile model that can be applied to a wide range of tasks, such as language translation. In this work, we directly compared three models: BKT, its variant Intervention-BKT (IBKT), and LSTM, on two types of student modeling…

This dissertation examines the thesis that implicit learning plays a role in learning about scientific phenomena, and subsequently, in conceptual change. Decades of research in learning science demonstrate that a primary challenge of science education is overcoming prior, naive knowledge of natural phenomena in order to gain scientific…

The purpose of this hermeneutic phenomenological study was to describe how students experience success in mathematics remediation at a four-year private institution in the central United States. Success in a remedial mathematics course was defined as one's completion of a required remedial mathematics course having earned an overall grade of 90%…

Teacher education programs in 40 states require teacher candidates working toward visual art certification to take edTPA, a high-stakes summative performance assessment developed by Stanford Center for Assessment, Learning and Equity (SCALE) and distributed by Pearson's Evaluations Systems (Pearson Education, 2018). Since its implementation in…

This paper studies how the effectiveness of teachers varies by classroom composition. We combine random assignment of teachers to classrooms with rich measures of teacher effectiveness based on a popular observational protocol, Framework for Teaching, to overcome key endogeneity concerns related to measurement and matching. We find that…

The state of education in the United States faces many challenges in preparing students for the workforce and postsecondary education. These challenges are heightened at the postsecondary level for schools of nursing. The current shortage of nurses will continue to rise if recruitment and retention strategies are not employed. The purpose of this…

After three decades of scholarship describing why and how students ought to be taught to think historically, this study asks what happens when they are. Ten high school students from a school that incorporated historical thinking into all history coursework repeated the think-aloud task from Wineburg's 1991 study of the cognitive processes…

Two groups of English as a second language students engaged in a fourteen-week repeated reading (RR) treatment: (1) a 3x group (n = 16), which engaged in three readings per session, and (2) a 5x group (n = 15), which engaged in five readings per session. Reading rate and background knowledge were measured at five points to assess the effect of…

Social demand for higher education has more than doubled in the past 20 years. However, only one-third of all countries' higher education systems are enrolling more than 50% of the traditional age cohort. Despite major advancements in achieving higher levels of access and participation, inequalities and inequities in higher education persist and…

Feedback can be a powerful learning tool, but its effects vary widely. Research has suggested that learners' prior knowledge may moderate the effects of feedback; however, no causal link has been established. In Experiment 1, we randomly assigned elementary school children (N = 108) to a condition based on a crossing of 2 factors: induced strategy…

Recently, through the support from the Obama administration, the traditional STEM curricula (science, technology, engineering, and mathematics) in high schools are being updated with integrated, applied STEM courses (e.g., technology and engineering) in order to enhance the "real world" applicability of scientific fields and ultimately…

Systems and system models are recognized as a crosscutting concept in the newly released framework for K-12 science education (NRC [National Research Council], 2012). In previous work, I developed a learning progression for systemic reasoning in ecology at the elementary level. The learning progression captured five levels of students' reasoning…

The degree of element interactivity determines the complexity and therefore the intrinsic cognitive load of linear equations. The unpacking of linear equations at the level of operational and relational lines allows the classification of linear equations in a hierarchical level of complexity. Mapping similar operational and relational lines across…

The validation model of causal bridging inferences proposed by Singer and colleagues (e.g., Singer in "Can J Exp Psychol," 47(2):340-359, 1993) claims that before a causal bridging inference is accepted, it must be validated by existing knowledge. For example, to understand "Dorothy took the aspirins. Her pain went away," one…

Making and recording scientific observations is a fundamental activity of the scientific community. Scientists use their senses and tools (e.g., magnifying glasses, rulers, colored pencils) to make records of the phenomena (e.g., light energy, ecosystems) they are investigating. These observations often serve as evidence in the scientific…