mental age

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mental age:

see intelligenceintelligence,
in psychology, the general mental ability involved in calculating, reasoning, perceiving relationships and analogies, learning quickly, storing and retrieving information, using language fluently, classifying, generalizing, and adjusting to new situations.
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mental age

[′men·təl ′āj]
(psychology)
The degree of mental development of an individual in terms of the chronological age of the average individual of equivalent mental ability; specifically, a score derived from intelligence tests.
References in periodicals archive ?
Although mental age seems a straightforward way to apply the fourteen-year-old rule today, the approach faces several challenges.
These four objections are ably rebutted in James Fife's article, Mental Capacity, Minority, and Mental Age in Capital Sentencing: A Unified Theory of Culpability.
Mental age is somewhat unsettled in the psychological literature as well.
337) Although the test should not substitute for IQ testing, its scores correlate with IQ-scores and can provide some general guidance regarding a mental age conversion.
The concept of mental age holds promise, but it may be insufficiently nuanced to fully capture the protections of the fourteen-year-old rule.
2000) ("[T]he imposition of the sentence of death upon a criminal defendant who has the mental age of a child between the ages of 9 and 12 is excessive.