Definition
A criterion is a standard or principle by which something is judged or decided. It's like a specific rule or guideline used for evaluation. Think of it as a yardstick for measuring quality or success. It's important to have clear criteria when making decisions. It provides a framework for objective assessment. 'Criterion' is the singular form; the plural is 'criteria.' For instance, a good grade might need a criterion of 'all answers are complete'.