Dictionary

mental age

noun

: a measurement of a person's ability to think and understand that is expressed as the age at which an average person reaches the same level of ability

Full Definition of MENTAL AGE

:  a measure used in psychological testing that expresses an individual's mental attainment in terms of the number of years it takes an average child to reach the same level

Examples of MENTAL AGE

  1. a 40-year-old man with the mental age of 10

First Known Use of MENTAL AGE

1910

mental age

noun    (Medical Dictionary)

Medical Definition of MENTAL AGE

:  a measure used in psychological testing that expresses an individual's mental attainment in terms of the number of years it takes an average child to reach the same level

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