A percentile is best described as ...

• A. The mean of a distribution
• B. The range of scores
• C. The score that indicates the percentage of scores at or below a given point
• D. The mode

Answer: (C)

A percentile describes the position of a score within a distribution by indicating what percentage of scores are at or below that value. This exact idea captures why it’s useful: it shows relative standing in the data, not just a single number.

For example, scoring at the 60th percentile means that 60% of the scores are at or below your score, and 40% are above. This differs from the mean, which is a single average value; the range, which measures how spread out the scores are; and the mode, which is the most frequent score. Percentiles give you a sense of where a score sits within the overall distribution.