achievement-age

achievement age

noun Psychology.
the level of educational development of an individual as determined by an achievement test and based on a comparison of the examinee's score with the average score of individuals of the same chronological age.
Compare mental age.


Origin:
1920–25

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World English Dictionary
achievement age
 
n
psychol Compare mental age the age at which a child should be able to perform a standardized test successfully

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American Heritage
Medical Dictionary

achievement age a·chieve·ment age (ə-chēv'mənt)
n.
The level of an individual's educational accomplishment as measured by standard achievement tests and expressed as the age in years of a child for whom the total score would be an average score.

The American Heritage® Stedman's Medical Dictionary
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