172 citations · 792 across the 34 of their papers we have counts for
6 papers · 2 filters
The impact of peer interaction on the responses to clicker questions in an upper-level quantum mechanics course
Ryan Sayer, Emily Marshman, Chandralekha Singh
In this case study, we investigated the effectiveness of peer interaction on responses to in-class clicker questions in an upper-level quantum mechanics course. We analyzed student…
Graduate teaching assistants use different criteria when grading introductory physics vs. quantum mechanics problems
Charles Henderson, Emily Marshman, Ryan Sayer +2
Physics graduate teaching assistants (TAs) are often responsible for grading. Physics education research suggests that grading practices that place the burden of proof for explicat…
Physics graduate teaching assistants' beliefs about a grading rubric: Lessons learned
Edit Yerushalmi, Ryan Sayer, Emily Marshman +2
Explication and reflection on expert vs. novice considerations within the problem-solving process characterize a cognitive apprenticeship approach for the development of expert-lik…
Student difficulties with representations of quantum operators corresponding to observables
Emily Marshman, Chandralekha Singh
Dirac notation is used commonly in quantum mechanics. However, many upper-level undergraduate and graduate students in physics have difficulties with representations of quantum ope…
Student difficulties with determining expectation values in quantum mechanics
Chandralekha Singh, Emily Marshman
The expectation value of an observable is an important concept in quantum mechanics. However, upper-level undergraduate and graduate students in physics have both conceptual and pr…
Developing and evaluating an interactive tutorial on degenerate perturbation theory
Christof Keebaugh, Emily Marshman, Chandralekha Singh
We discuss an investigation of student difficulties with degenerate perturbation theory (DPT) carried out in advanced quantum mechanics courses by administering free-response and m…