activity
20122023
most citedRelative impacts of different grade-scales on student success in introductory physics

10 citations · 11 across the 9 of their papers we have counts for

collaborators

9 papers

physics.ed-ph2023

Attributing equity gaps to course structure in introductory physics

David J. Webb, Cassandra A. Paul

We add to a growing literature suggesting that demographic grade gaps should be attributed to biases embedded in the courses themselves. Changes in the structure of two different i…

physics.ed-ph2022

Percent Grade Scale Amplifies Racial/Ethnic Inequities in Introductory Physics

Cassandra A. Paul, David J. Webb

In previous work we analyzed databases for 95 classes to show that the percent grade scale was correlated with a much higher student fail rate than the 4.0 grade scale. This paper…

physics.ed-ph2021

Addendum to Concepts First Paper: A Student Deficit Model is Untenable in Understanding a Demographic Grade Gap

David J. Webb

This addendum shows that a demographic grade gap is best understood using a course deficit model rather than the more common student deficit model. Students from a concepts-first c…

physics.ed-ph2021

Gender-grade-gap zeroed out under a specific intro-physics assessment regime

David J. Webb, Wendell H. Potter

Evidence is presented that offering introductory physics courses with an explicit focus on mastery can reduce the gender gap to zero. Taken together with a previous study showing t…

physics.ed-ph2019★ 10 cited

Relative impacts of different grade-scales on student success in introductory physics

David J. Webb, Cassandra A. Paul, Mary K. Chessey

In deciding on a student's grade in a class, an instructor generally needs to combine many individual grading judgments into one overall judgment. Two relatively common numerical s…

physics.ed-ph2018

Pondering zeros: analysis of a decade of blanks and missed quizzes

Cassandra Paul, David J. Webb, Mary K. Chessey +1

When assessing student work, graders will often find that some students will leave one or more problems blank on assessments. Since there is no work shown, the grader has no means…