Answer:Pain rating scale
Explanation:
Pain rating scale is the scale that is used for measuring the level of pain a patient or any person.It can determine the intensity of pain through surveying the patient attaining medical scale ratings which can vary from 0 (Painless state)to 5 or 10(Maximum pain state).
According to the question, group of students can use pain scale for evaluating and assessing the pain of a person.It will help them to understand the medical context of pain and its validity.