"Prescriptive" refers to a type of approach or guideline that provides specific recommendations or rules on how to act or make decisions. It often contrasts with descriptive methods, which simply observe and report on what is happening without suggesting changes. In various fields, such as linguistics or medicine, prescriptive rules help establish standards and best practices. In grammar, for example, prescriptive rules dictate how language should be used, focusing on correct usage and structure. Similarly, in healthcare, prescriptive guidelines may outline treatment protocols for specific conditions, ensuring that patients receive consistent and effective care based on established evidence.