Scale scores refer to a set of numerical values that represent an individual's performance on a standardized test or assessment. These scores are used to compare and track an individual’s progress over time, as well as to determine eligibility for certain programs or services. Scale scores can be converted into percentile ranks, which indicate how the individual performed in comparison to others who took the same test. The scale score is typically a range of values that represent different levels of performance on the assessment, with higher scores indicating better performance.