*73%*:**Student reasoning about sources of experimental measurement uncertainty in quantum versus classical mechanics***53%*:**The Influence of Student Understanding of Classical Physics When Learning Quantum Mechanics***50%*:**Using student-generated content to engage students in upper-division quantum mechanics***49%*:**Improving students' understanding of quantum mechanics via the Sternâ€“Gerlach experiment***48%*:**Student evaluation of more or better experimental data in classical and quantum mechanics***46%*:**Student difficulties with determining expectation values in quantum mechanics***45%*:**Investigating student understanding of basic quantum mechanics in the context of time-dependent perturbation theory***44%*:**Improving student understanding of addition of angular momentum in quantum mechanics***43%*:**On the Study of Student Use of Meta-Resources in Learning Quantum Mechanics***43%*:**Student understanding of potential, wavefunctions and the Jacobian in hydrogen in graduate-level quantum mechanics***42%*:**Student difficulties in learning quantum mechanics***42%*:**Dynamics of Student Modeling: A Theory, Algorithms, and Application to Quantum Mechanics***42%*:**Student Difficulties in Understanding Probability in Quantum Mechanics***42%*:**Assessing and improving student understanding of quantum mechanics***42%*:**University students' reasoning on physical information encoded in quantum state at a point in time***41%*:**Exploring Student Understanding of Energy through the Quantum Mechanics Conceptual Survey***41%*:**Investigating Student Difficulties with Time dependence of Expectation Values in Quantum Mechanics***41%*:**Student understanding of measurement and uncertainty: probing the mean***40%*:**Impact of an introductory lab course on studentsâ€™ understanding of measurement uncertainty**