Meaning of achievement quotient

achieve'ment quo"tient

Pronunciation: [key]
— Psychol. Psychol.
  1. achievement age divided by chronological age, usually expressed as a multiple of 100. The achievement quotient of a ten-year-old child whose achievement age equals that of the average twelve-year-old is 1.2, or 120. Abbr.: AQ Cf. intelligence quotient.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.