This dissertation examines the interaction patterns that happen in an online learning environment. While many studies look at online learning through the lens of the learner or the learning environment, few studies look at the interaction patterns that happen through the digital traces captured by computational tools. Based on the conceptual…

Background: Data visualizations transform data into visual representations such as graphs, diagrams, charts and so forth, and enable inquiries and decision-making in many professional fields, as well as in public and economic areas. How students' data visualization literacy (DVL), including constructing, comprehending, and utilizing adequate data…

The Hertzsprung-Russell diagram (HRD) is a fundamental representation in stellar physics. It contains information about key properties of stars and allows inferences about stellar evolution. The use of the HRD is an important disciplinary activity in astrophysics. For example, it is particularly important to have a graphical understanding of the…

This study evaluated the benefits of item enhancements applied to science-inquiry items for incorporation into an alternate assessment based on modified achievement standards for high school students. Six items were included in the cognitive lab sessions involving both students with and without disabilities. The enhancements (e.g., use of visuals,…

This study addresses the English Presentation skills of graduate students and explores the ways to improve their skills. A cross-sectional research survey study was conducted among 26 students of the Master of Arts Program in English for Careers at Thammasat University, Thailand. The results showed that there are some statistically significant…