Which score is found by comparing a student’s results to the average performance of peers in the same age group?

• A. Percentile Rank
• B. Standard Score
• C. Age-equivalent Score
• D. Grade-equivalent Score

Answer: (C)

Interpreting a score by age means tying performance to the age at which that level of performance is typical. An age-equivalent score comes from norm tables that map a given raw score to the age of students who would usually achieve that score. So the result is described as an age, reflecting how a student’s performance compares to peers of the same age. This matches the idea of comparing results to the average performance of age peers.

Other options describe related ideas differently: a percentile rank shows relative standing among peers but not a specific age; a standard score places results on a common scale with a mean and deviation rather than an age; a grade-equivalent score ties performance to a grade level rather than to an age.