Following Nilson's book in 2014, the first publications on the design and implementation of specifications grading appeared in 2016. In every year after 2016 there have been at least five publications, with 2023 as the year with the most publications at 22 (Figure ). From January to September 30, 2024, a total of 13 publications have been released. STEM disciplines are most represented in publications describing specifications grading systems (Figure ). Chemistry represents the greatest number of publications with 20, followed by engineering with 19, computer science with 10, and mathematics with 8. All other disciplines have four or fewer publications, and disciplines within the humanities are least represented. The type of publications also varies by discipline. While journal articles are most common amongst nearly all disciplines, conference papers are the only type of publication from engineering. Book chapters are almost exclusive to chemistry with the only exceptions being one publication from information literacy, one from French studies, and one from computer science. These discrepancies in types of dissemination are tied to disciplinary norms. In engineering and computer science peer-reviewed conference papers are more common than journal articles, and the American Chemical Society specifically publishes peer-reviewed books as an alternative form of dissemination. Descriptions of course sizes vary from publication to publication. Some include descriptions of a single course or multiple courses with no information about size, a single course with information about size, or multiple courses with information about size. Course sizes were extracted from the descriptions provided in the publications and were grouped into five categories: 35 or fewer, 36-60, 61-100, 101-999, and 1,000 or greater. Of the courses described that include information about course size, 62% (56 courses) are small courses with total enrollments of 35 or fewer students (Figure ). The commonality of this course size is unsurprising as the majority of these publications describe courses taught at smaller colleges and universities. The majority of published implementations of specifications grading in courses with enrollments of 100 students or greater describe introductory level courses, mostly at large, four-year institutions. Although most published examples of specifications grading describe courses at the undergraduate level, including independent study or capstone courses , a small number of graduate and professional courses do appear . Of the 91 publications included in the review corpus, 20 publications describe implementations of specifications grading in online or hybrid modality courses .