The development of equitable grading systems that provide
students
with effective feedback and provide instructors with an efficient
means of assessment are of deep interest to chemical educators. A
recent trend in chemical education, and STEM education more broadly,
has been the use of specifications, or specs, grading that emphasizes
mastery of material through recursive methods and standards-based
grading. Students must meet certain standards in multiple specifications
to earn a particular letter grade, as opposed to more traditional
points-based grading systems. However, changing from a points-based
grading system to specs grading requires significant effort by the
instructor, especially in courses with an integrated lab component.
In this manuscript we describe the development of a hybrid-specs grading
system implemented in our second semester general chemistry course
over the 2021–22 academic year. We describe the development
of the hybrid-specs grading system, student performance as measured
by shifts in letter grade distributions and final exam scores, and
student perceptions of the new grading system. Notes for practitioners
on the implementation of the grading system are in the Supporting
Information. Finally, we also discuss improvements of the system for
implementation in future courses.