In recent posts, we’ve discussed tips on developing high-quality multiple-choice exams. Multiple-choice questions are an efficient way to assess student learning across a wide range of learning objectives. In cases you want to know if students have a deep understanding of a specific topic, multiple-choice might not be the best answer (no pun intended). Instead, you might present a problem to solve or an essay question. Whereas multiple-choice items are challenging to write, yet easy to score, the opposite holds true for grading essays.
One of the drawbacks of essays is that humans do the scoring. First, as noted above, essay grading requires substantially more time and resources to score. Second, the grading process is subjective, to some extent. A third drawback to essay grading is that content, though it may be assessed deeply, e.g., using more depth of knowledge, it is not assessed broadly.
Of these drawbacks, the inherent subjectivity in essay grading can be lessened but not eliminated. Here are some guidelines to help improve fairness and consistency the next time you’re grading essays:
Following are examples of two rubrics.
Top picture: Rubric from St. Mary’s College School of Extended Education
Bottom picture: Rubric from the University of Northern Iowa
In review, to assess the depth of knowledge, an essay question is an excellent choice. Essay grading can be difficult and extremely time-consuming. Grading essays are subjective, which reduces test reliability. And remember, if you are in a large class setting with multiple TAs grading essays, you should develop strategies to improve inter-rater reliability.
Mark Espinola
CEO + Founder of GradeHub