+A **Difficulty Scale** is a system for quantifying the perceived [Challenge](/wiki/challenge) or effort involved in a task. It often employs a standardized [Rating System](/wiki/rating_system) to categorize items from easy to hard, providing a common measure for comparison.
+## See also
+- [Metric](/wiki/metric)
+- [Assessment](/wiki/assessment)
+- [Complexity](/wiki/complexity)
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