A 10 year old child has mental age of 4 years. He is:-: (A) Idiot, (B) Imbecile, (C) Moron, (D) Normal
Answer is B. IQ level = mental age/ chronological age X 100 - IQ (intelligence quotient) = Mental age / Chronological age X 10 Term IQ range Moron 51- 70 Imbecile 26 - 50 Idiot 0 - 25