Which grading variation uses fewer categories to assess performance as satisfactory or unsatisfactory?

The correct answer is the checklist, as it is designed to evaluate performance based on a binary system, typically categorizing tasks or skills as either satisfactory or unsatisfactory. This method simplifies assessment by focusing on the presence or absence of required skills or behaviors, making it easy for both instructors and students to understand what is expected.

In contrast, a rating scale involves multiple categories, often using a numerical system to assess various levels of performance, which adds complexity to the evaluation process. Grading improvement only emphasizes progress rather than overall performance and could require subjective interpretation of what constitutes improvement. The Likert scale, while useful for gauging attitudes or perceptions, also involves multiple response options, adding another layer of complexity beyond a simple satisfactory/unsatisfactory dichotomy. Thus, the checklist stands out for its straightforward approach to assessment.