Allison's mental age is between 7 years and 6 months and 8 years and 6 months. Children's intelligence tests are carried out in order to know the mental or maturational age of the children. It is done by comparing the level of intelligence of children with that of their peers, that is if the child can perform the same tasks or exercises that most children of their age do. In this case, Allison solves easier problems for children of her age, which is why her mental age level is lower.
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