Definition
Mental age is a concept that relates to a person's cognitive abilities compared to the average abilities of people at different chronological ages. It represents the age level at which someone is functioning intellectually. A person with a mental age of 10, for instance, performs on cognitive tests similarly to an average 10-year-old. It's used to assess intellectual development and identify potential learning difficulties. Mental age is often used in conjunction with IQ (intelligence quotient) tests. Keep in mind it's just one measure and doesn't fully capture someone's potential.