can you pls help me its hard
Explanation:
I think this answers may help you
Answer:
Binet suggested the concept of mental age, or a measure of intelligence based on the average abilities of children of a certain age group.
and for the second question
If a child has a mental age of 10. What does that mean? That the child does as well as the average 10 year old.
Explanation:
i hope this helped heave a great day ^^